Function Documentation

version 2.0 (Changelog)

Connection

pair()

Description

This function connects your controller with the program. You can also set the specific USB port name.

Syntax

pair()
pair(portname)

Parameters

string portname: A string containing the port name or number.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair() # pair automatically, may not always work
# drone.pair(port_name = 'COM3')    # pair with a specific port


drone.takeoff()
drone.hover(1)
drone.land()


drone.close()

close()

Description

This function closes the connection of your controller with the program.

Syntax

close()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(1)
drone.land()


drone.close() # closes connection between controller and program

Flight Commands

takeoff()

Description

This function makes the drone takeoff at an average height of 80 centimeters and hover. The drone will always hover for 1 second in order to stabilize before it executes the next command. NOTE: The takeoff parameters or height cannot be modified.

Syntax

takeoff()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(3)
drone.land()


drone.close()

land()

Description

This function makes the drone stop all commands, hover, and make a soft landing where it is. The function will also reset the flight motion variables to 0. NOTE: If you want to take off and immediately land, it is recommended to run a hover() or time.sleep() in between the takeoff() and land(), because the CoDrone EDU may miss the land command otherwise.

Syntax

land()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(3) # include a hover() or time.sleep() to prevent land() from skipping
drone.land()


drone.close()

emergency_stop()

Description

This function immediately stops all commands and motors, so the drone will stop flying immediately. The function will also reset the flight motion variables to 0. NOTE: If you want to take off and emergency stop, it is recommended to run a hover() or time.sleep() in between the takeoff() and emergency_stop(), because the CoDrone EDU might miss the emergency_stop() command.

Syntax

emergency_stop()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(3) #Recommended to have a hover() or time.sleep(1) before landing
drone.emergency_stop()


drone.close()

hover()

Description

This function makes the drone hover for a given amount of time. If given no parameters, it will hover indefinitely until given a another command.

Syntax

hover(duration)

Parameters

integer duration: Duration of the hovering in seconds

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(3)
drone.land()


drone.close()

avoid_wall()

Description

A looped method that makes the drone fly forward until it reaches a desired distance based on the front range sensor. The range of front sensor is from 0cm-100cm

Syntax

avoid_wall()
avoid_wall(timeout)
avoid_wall(distance)
avoid_wall(timeout, distance)

Parameters

integer timeout: timeout is an optional parameter that is the duration in seconds that the function will run. the default value is 2
integer distance: distance is an optional parameter that is the distance in centimeters the drone will stop at in front of an object. the default value is 70

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# fly forward until a wall is found 50 cm away. run this loop for 10 seconds.
drone.avoid_wall(10, 50)
drone.land()


drone.close()

keep_distance()

Description

A looped method that makes the drone fly forward until it reaches a desired distance. Once the desired distance in reached the drone will maintain that distance. The sensor range is up to 150 cm.

Syntax

keep_distance()
keep_distance(timeout)
keep_distance(distance)
keep_distance(timeout, distance)

Parameters

integer timeout: the duration in seconds that the function will execute. The default value is 2 seconds.
integer distance: the distance in centimeters the drone will stop and maintain distance in front of an object. The default value is 50 centimeters.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# maintain a distance of 60cm from an object once detected for 10 seconds
drone.keep_distance(10, 60)
drone.land()


drone.close()

get_trim()

Description

This function gets the current trim values of the drone.

Syntax

get_trim()

Parameters

None

Returns

list trim data: A list of trim data — [0] for roll trim and [1] for pitch trim

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


# print the trim values
trim  = drone.get_trim()
print(trim)
print(trim[0])
print(trim[1])


drone.close()

reset_trim()

Description

You can reset the roll and pitch trim of the drone in case your drone is drifting. This function will reset the roll and pitch trim values back to zero.

Syntax

reset_trim()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.set_trim(5,0)
print(drone.get_trim())
drone.takeoff()
drone.hover(3)
drone.land()
drone.reset_trim()
print(drone.get_trim())


drone.close()

set_trim()

Description

You can set the roll and pitch trim of the drone in case your drone is drifting. For example, if the drone is drifting to its right, you may want to set the roll to a small negative value. This trim will remain saved, even after powering off until you've changed the trim either programmatically, or done a reset with the remote. NOTE: If you're setting the trim right before a takeoff, make sure to add a time.sleep(1) before the takeoff(), otherwise the takeoff commmand might be skipped.

Syntax

set_trim(roll, pitch)

Parameters

integer roll: the power of the roll (-100 - 100)
integer pitch: the power of the pitch (-100 - 100)

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


drone.set_trim(-5, 0) # example: drone is drifting right, so trim to roll left a little bit
time.sleep(1) # Add a time.sleep(1) before takeoff if you're planning to set the trim before takeoff
drone.takeoff()
drone.hover(3)
drone.land()


drone.close()

move_forward()

note

Function Under Development
This function is currently in a development phase. We’re working to improve its stability and performance as we continue to develop more features for CoDrone EDU.

Description

Moves the drone forward for the given distance and unit for that distance.

Syntax

move_forward(distance)
move_forward(distance, unit, speed)

Parameters

integer distance: the numerical value of the value to move
string unit: The unit of measurement for the distance flown. Available units are "cm" (centimeter), "ft" (feet), "in" (inches), "m" (meter).
integer speed: default 1 meter per second. Max is 2 meters/second

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


drone.takeoff()
drone.move_forward(distance=50, units="cm", speed=1)
time.sleep(3) # make sure to add a delay so the drone has enough time to fly
drone.land()


drone.close()

move_backward()

note

Function Under Development
This function is currently in a development phase. We’re working to improve its stability and performance as we continue to develop more features for CoDrone EDU.

Description

Moves the drone backward for the given distance and unit for that distance.

Syntax

move_backward(distance)
move_backward(distance, unit, speed)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


drone.takeoff()
drone.move_backward(distance=50, units="cm", speed=1)
time.sleep(3) # make sure to add a delay so the drone has enough time to fly
drone.land()


drone.close()

move_left()

note

Function Under Development
This function is currently in a development phase. We’re working to improve its stability and performance as we continue to develop more features for CoDrone EDU.

Description

Moves the drone left for the given distance and unit for that distance.

Syntax

move_left(distance)
move_left(distance, unit, speed)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


drone.takeoff()
drone.move_left(distance=50, units="cm", speed=1)
time.sleep(3) # make sure to add a delay so the drone has enough time to fly
drone.land()


drone.close()

move_right()

note

Function Under Development
This function is currently in a development phase. We’re working to improve its stability and performance as we continue to develop more features for CoDrone EDU.

Description

Moves the drone right for the given distance and unit for that distance.

Syntax

move_right(distance)
move_right(distance, unit, speed)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


drone.takeoff()
drone.move_right(distance=50, units="cm", speed=1)
time.sleep(3) # make sure to add a delay so the drone has enough time to fly
drone.land()


drone.close()

send_absolute_position()

note

Function Under Development
This function is currently in a development phase. We’re working to improve its stability and performance as we continue to develop more features for CoDrone EDU.

Description

Sends a movement command to the drone based on its absolute position from its takeoff location. Note: A sleep command for the length of the movement may be needed after using this movement command.
The 'x' position of the drone is forwards and reverse.
The 'y' position of the drone is left and right.
The 'z' position of the drone is up and down.

Syntax

send_absolute_position(positionX, positionY, positionZ, velocity, heading, rotationalVelocity)

Parameters

float positionX: The X position of the drone (-10 ~ 10). Forward is positive. Backwards is negative.
float positionY: The Y position of the drone (-10 ~ 10). Left is positive. Right is negative.
float positionZ: The Z position of the drone (-10 ~ 10). Up is positive. Down is negative.
float velocity: The velocity of the drone in meters per second (0.5 ~ 2). The movement speed of the drone.
integer heading: Heading value in degrees (-360 - 360). Positive turns the drone left. Negative turns the drone right.
integer rotationalVelocity: The rotational velocity of the drone in degrees per second (0 - 360). Left and right rotation speed of the drone.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.takeoff()

# Sending the drone forward from its takeoff location 0.5 meters moving at 0.5 m/s
drone.send_absolute_position(0.5, 0, 1, 0.5, 0, 0)
time.sleep(1) # Sleep command needed in order for this movement to execute.

# Sending the same command will cause the drone to hover around 
# the same area since this command uses absolute positioning from the takeoff location
drone.send_absolute_position(0.5, 0, 1, 0.5, 0, 0)
time.sleep(1)

drone.land()


drone.close()

turn_degree()

Description

Turns right or left with absolute reference frame to drone's initial heading. Positive degrees turn to the left and negative degrees turn to the right.

Syntax

turn_degree(degree, timeout, p_value)

Parameters

integer degree: angle of turn in degrees (-180 - 180)
integer timeout: optional parameter that is duration in seconds that drone will try to turn. default value is 3.
integer p_value: optional parameter that is the gain of the proportional controller, if this increased CDE will turn quicker, the smaller the slower. default value is 10.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.turn_degree(90) # drone will turn left 90 degrees
drone.land()


drone.close()

turn_left()

Description

Turns the drone left using the built in gyroscope. The default degree is 90.

Syntax

turn_left()
turn_left(degree)
turn_left(timeout)
turn_left(degree, timeout)

Parameters

integer degree: optional parameter that turns the drone in the given degree. default value is 90.
integer timeout: optional parameter that is duration in seconds that drone will try to turn. default value is 3.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.turn_left() # make a 90 degree left turn.
drone.hover(1) # wait for 1 second in the air
drone.turn_left(30, 3) # make a 30 degree left turn with a 3 second timeout.
drone.land()


drone.close()

turn_right()

Description

Turns the drone right using the built in gyroscope. The default degree is 90.

Syntax

turn_right()
turn_right(degree)
turn_right(timeout)
turn_right(degree, timeout)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.turn_right() # make a 90 degree right turn.
drone.hover(1) # wait for 1 second in the air
drone.turn_right(30, 3) # make a 30 degree right turn with a 3 second timeout.
drone.land()


drone.close()

Flight Sequences

circle()

Description

Flies the drone in the shape of a circle.

Syntax

circle()
circle(speed, direction)

Parameters

integer speed: optional parameter that is the speed the drone will move (0 - 100). default value is 75.
integer direction: optional parameter that determines the direction of the circle. 1 is right, -1 is left. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# default circle parameters (75, 1)
drone.circle()
drone.land()


drone.close()

flip()

Description

This functions makes the drone flip backward, forward, right, or left. Make sure your battery percentage is over 50% for the flip to execute.

Syntax

flip()
flip(direction)

Parameters

string direction: optional parameter that is the direction the drone will flip. default is "back"

Returns

None

Example Code

Add a hover or delay after the flip if you need to stabilize before your next command. The drone takes 3-4 seconds after a flip before it can do another flight command.

#Python code
import time
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()

drone.hover(3)
drone.flip("back")  # send flip command
time.sleep(4)  # wait for flip to complete

drone.set_pitch(30) # move forward for 1 second
drone.move(1)

drone.set_pitch(-30) # move backward for 1 second
drone.move(1)

drone.land()


drone.close()

spiral()

Description

Flies the drone in the shape of a downward spiral.

Syntax

spiral()
spiral(speed, seconds, direction)

Parameters

integer speed: optional parameter that is the speed the drone will move (0 - 100). default value is 50.
integer seconds: optional parameter that is the duration in seconds the drone flies in a downward spiral. default value is 5.
integer direction: optional parameter that determines the direction of the spiral. 1 is right, -1 is left. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# default spiral parameters (50, 5, 1)
drone.spiral()
drone.land()


drone.close()

square()

Description

Flies the drone in the shape of a square.

Syntax

square()
square(speed, seconds, direction)

Parameters

integer speed: optional parameter that is the speed the drone will move (0 - 100). default value is 50.
integer seconds: optional parameter that is the duration in seconds the drone flies for each side of the square. default value is 5.
integer direction: optional parameter that determines the direction of the square. 1 is right, -1 is left. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# default square parameters (60, 1, 1)
drone.square()
drone.land()


drone.close()

sway()

Description

Flies the drone in a swaying motion.

Syntax

sway()
sway(speed, seconds, direction)

Parameters

integer speed: optional parameter that is the speed the drone will move (0 - 100). default value is 30.
integer seconds: optional parameter that is the duration in seconds the drone will fly in each "sway" motion. default value is 2.
integer direction: optional parameter that determines the direction of the sway. 1 is right, -1 is left. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# default sway parameters (30, 2, 1)
drone.sway()
drone.land()


drone.close()

triangle()

Description

Flies the drone in the shape of a triangle.

Syntax

triangle()
triangle(speed, seconds, direction)

Parameters

integer speed: optional parameter that is the speed the drone will move (0 - 100). default value is 60.
integer seconds: optional parameter that is the duration in seconds the drone flies for each side of the triangle. default value is 1.
integer direction: optional parameter that determines the direction of the triangle. 1 is right, -1 is left. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# default triangle parameters (60, 1, 1)
drone.triangle()
drone.land()


drone.close()

Flight Variables

get_move_values()

Description

Previously named print_move_values(). Returns the current values of roll, pitch, yaw, and throttle flight variables.

Syntax

get_move_values()

Parameters

None

Returns

None

Example Code

# Python code
from codrone_edu.drone import *

drone = Drone()

drone.pair()

drone.set_roll(30)
drone.set_pitch(40)
drone.set_yaw(50)
drone.set_throttle(60)

move_list = drone.get_move_values() # get_move_values() returns list of flight variables

print("roll:", move_list[0])
print("pitch:", move_list[1])
print("yaw:", move_list[2])
print("throttle:", move_list[3])

drone.close()

move()

Description

The move command will move the drone based on the set flight variables (set_pitch, set_roll, etc). If given a parameter the move command will execute the movement for the given amount of seconds. If given no parameter then the drone will execute the move command indefinitley. You must takeoff() first to use a move() function.

Syntax

move(duration)

Parameters

integer duration: Duration of the movement in seconds

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# Drone goes up for 1 second with 50 power
drone.set_pitch(50)
drone.move(1) # move command executes the movement for 1 second
drone.land()


drone.close()

print_move_values()

warning

This function has been deprecated and will be removed in a future release. Please use get_move_values() instead, which returns move values (roll, pitch, yaw, throttle) that can be printed as needed.

Description

Prints the current values of roll, pitch, yaw, and throttle flight variables.

Syntax

print_move_values()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.set_pitch(50)
drone.set_roll(50)
drone.print_move_values() # will print pitch and roll at 50 and throttle and yaw at 0
drone.land()


drone.close()

reset_move()

warning

This function has been deprecated and will be removed in a future release. Please use reset_move_values() instead.

Description

The reset_move command will reset the values of roll, pitch, yaw, and throttle to 0.

Syntax

reset_move()
reset_move(attempts)

Parameters

integer attempts: Optional parameter that sends the reset_move command multiple times.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.takeoff()
drone.set_pitch(50)
drone.set_roll(50)

drone.move(2)

drone.reset_move() # reset the pitch and roll to 0.

drone.move(2) # after resetting flight variables, move(2) won't move the drone

drone.land()

drone.close()

reset_move_values()

Description

The reset_move_values command will reset the values of roll, pitch, yaw, and throttle to 0.

Syntax

reset_move_values()
reset_move_values(attempts)

Parameters

integer attempts: Optional parameter that sends the reset_move_values command multiple times.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.takeoff()
drone.set_pitch(50)
drone.set_roll(50)

drone.move(2)

drone.reset_move_values() # reset the pitch and roll to 0.

drone.move(2) # after resetting flight variables, move(2) won't move the drone

drone.land()

drone.close()

set_pitch()

Description

This is a setter function that allows you to set the pitch variable. Once you set pitch, you have to use move() to actually execute the movement. The pitch variable will remain what you last set it until the end of the flight sequence, so you will have to set it back to 0 if you don't want the drone to pitch again.

Syntax

set_pitch(power)

Parameters

integer power: Sets the pitch variable (-100 - 100). The number represents the direction and power of the output for that flight motion variable. Negative pitch is backwards, positive pitch is forwards.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# Drone goes forward for 1 second with 50 power
drone.set_pitch(50)
drone.move(1) # move command executes the movement for 1 second
drone.land()


drone.close()

set_roll()

Description

This is a setter function that allows you to set the roll variable. Once you set roll, you have to use move() to actually execute the movement. The roll variable will remain what you last set it until the end of the flight sequence, so you will have to set it back to 0 if you don't want the drone to roll again.

Syntax

set_roll(power)

Parameters

integer power: Sets the roll variable (-100 - 100). The number represents the direction and power of the output for that flight motion variable. Negative roll is left, positive roll is right.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# Drone goes right for 1 second with 50 power
drone.set_roll(50)
drone.move(1) # move command executes the movement for 1 second
drone.land()


drone.close()

set_throttle()

Description

This is a setter function that allows you to set the throttle variable. Once you set throttle, you have to use move() to actually execute the movement. The throttle variable will remain what you last set it until the end of the flight sequence, so you will have to set it back to 0 if you don't want the drone to throttle again.

Syntax

set_throttle(power)

Parameters

integer power: Sets the pitch variable (-100 - 100). The number represents the direction and power of the output for that flight motion variable. Negative throttle is down, positive throttle is up.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# Drone goes up for 1 second with 50 power
drone.set_throttle(50)
drone.move(1) # move command executes the movement for 1 second
drone.land()


drone.close()

set_yaw()

Description

This is a setter function that allows you to set the yaw variable. Once you set yaw, you have to use move()to actually execute the movement. The yaw variable will remain what you last set it until the end of the flight sequence, so you will have to set it back to 0 if you don't want the drone to yaw again.

Syntax

set_yaw(power)

Parameters

integer power: Sets the pitch variable (-100 - 100). The number represents the direction and power of the output for that flight motion variable. Negative yaw is right, positive yaw is left.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# Drone turns left for 1 second with 50 power
drone.set_yaw(50)
drone.move(1) # move command executes the movement for 1 second
drone.land()


drone.close()

LED

controller_LED_off()

Description

Turns off the controller LEDs.

Syntax

controller_LED_off()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.controller_LED_off()

drone.close()

drone_LED_off()

Description

Turns off the drone LED.

Syntax

drone_LED_off()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.drone_LED_off()

drone.close()

set_controller_LED()

Description

This function sets the LED color and brightness of the CoDrone EDU controller's LEDs. This is done by setting RGB values (0 - 255) and brightness level (0 - 100).

Syntax

set_controller_LED(red, green, blue, brightness)

Parameters

integer red: pixel value for the color red (0 - 255)
integer green: pixel value for the color green (0 - 255)
integer blue: pixel value for the color blue (0 - 255)
integer brightness: brightness of the controller LED (0 - 100)

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.set_controller_LED(0, 0, 255, 100)

drone.close()

set_drone_LED()

Description

This function sets the LED color and brightness of the CoDrone EDU's LED. This is done by setting RGB values (0 - 255) and brightness level (0 - 100).

Syntax

set_drone_LED(red, green, blue, brightness)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.set_drone_LED(0, 0, 255, 100)

drone.close()

Sounds

controller_buzzer()

Description

Plays a note using the controller's buzzer.

Syntax

controller_buzzer(note, duration)

Parameters

integer/Note note: frequency of the note, in Hertz or a Note object
integer duration: Duration of the note in milliseconds

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.controller_buzzer(400, 300)
drone.controller_buzzer(600, 300)

drone.close()

drone_buzzer()

Description

Plays a note using the drone's buzzer.

Syntax

drone_buzzer(note, duration)

Parameters

integer/Note note: frequency of the note, in Hertz or a Note object
integer duration: Duration of the note in milliseconds

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

drone.drone_buzzer(400, 300)
drone.drone_buzzer(600, 300)

drone.close()

start_drone_buzzer()

Description

This function allows the drone buzzer to be played in the background while other commands are given to the drone.

Syntax

start_drone_buzzer(note)

Parameters

integer/Note note: the frequency of the note, in Hertz or a Note object

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.start_drone_buzzer(500) # starting the buzzer

# these commands run while the buzzer runs in the background
for i in range(5):
    drone.set_drone_LED(255, 0, 0, 100)
    time.sleep(0.5)
    drone.set_drone_LED(0, 255, 0, 100)
    time.sleep(0.5)

drone.stop_drone_buzzer() # stops the buzzer

drone.close()

stop_drone_buzzer()

Description

Stops the drone buzzer if started in the background.

Syntax

stop_drone_buzzer()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.start_drone_buzzer(500) # starting the buzzer

# these commands run while the buzzer runs in the background
for i in range(5):
    drone.set_drone_LED(255, 0, 0, 100)
    time.sleep(0.5)
    drone.set_drone_LED(0, 255, 0, 100)
    time.sleep(0.5)


drone.stop_drone_buzzer() # stops the buzzer
drone.close()

start_controller_buzzer()

Description

This function allows the controller buzzer to be played in the background while other commands are given to the drone.

Syntax

start_controller_buzzer(note)

Parameters

integer/Note note: the frequency of the note, in Hertz or a Note object

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.start_controller_buzzer(Note.A4) # starting the buzzer

# these commands run while the buzzer runs in the background
for i in range(3):
    drone.set_controller_LED(255, 0, 0, 100)
    time.sleep(0.5)
    drone.set_controller_LED(0, 255, 0, 100)
    time.sleep(0.5)


drone.stop_controller_buzzer() # stops the buzzer
drone.close()

stop_controller_buzzer()

Description

Stops the controller buzzer if started in the background.

Syntax

stop_controller_buzzer()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.start_controller_buzzer(440) # starting the buzzer

# these commands run while the buzzer runs in the background
for i in range(3):
    drone.set_controller_LED(255, 0, 0, 100)
    time.sleep(0.5)
    drone.set_controller_LED(0, 255, 0, 100)
    time.sleep(0.5)


drone.stop_controller_buzzer() # stops the buzzer
drone.close()

Sensors (Position)

get_pos_x()

Description

Getter function that gets the x position of the drone. (x is forwards and backwards)

Syntax

get_pos_x()
get_pos_x(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

string unit: The unit of measurement that is chosen for the position distance. Available units are "m" (meter), "cm" (centimeter), "mm" (millimeter), or "in" (inch). If a parameter is not specified cm is chosen by default.

Returns

integer x-position: The current x position of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_pos_x())
drone.land()


drone.close()

get_pos_y()

Description

Getter function that gets the y position of the drone. (y is left and right)

Syntax

get_pos_y()
get_pos_y(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

Returns

integer y-position: The current y position of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_pos_y())
drone.land()


drone.close()

get_pos_z()

Description

Getter function that gets the z position of the drone. (z is up and down)

Syntax

get_pos_z()
get_pos_z(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

Returns

integer z-position: The current z position of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_pos_z())
drone.land()


drone.close()

get_position_data()

Description

get_position_data is a getter function that retuns a list of position data for the drone. The 'x' position of the drone is forwards and reverse. The 'y' position of the drone is left and right. The 'z' position of the drone is up and down.

Syntax

get_position_data()
get_position_data(delay)

Parameters

float delay: the delay in seconds before the position data is returned. default value is 0.01.

Returns

list position data: A list of position data for the drone. The list contains the current time of the running program [0], x position data [1], y position data [2], z position data [3].

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
data = drone.get_position_data()
print(data)
drone.land()


drone.close()

Sensors (Range Sensor)

detect_wall()

Description

Returns True when a distance below the threshold is reached. The sensor range is up to 1.5 meters (150cm)

Syntax

detect_wall()
detect_wall(distance)

Parameters

integer distance: An optional parameter that is the threshold in centimeters that will return True. The default value is 50

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
# if a wall is detected in less than 500mm true will be returned.
if drone.detect_wall():
    print("wall detected!")
else:
    print("no wall detected!")

drone.land()


drone.close()

get_bottom_range()

Description

This is a getter function which returns the current bottom range of the drone. The default unit of measurement is centimeters. This function uses the bottom range sensor to measure distance from the drone to the surface below the drone.

Syntax

get_bottom_range()
get_bottom_range(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

string unit: The unit of measurement that is chosen for the height distance. Available units are "m" (meter), "cm" (centimeter), "mm" (millimeter), or "in" (inch). If a parameter is not specified cm is chosen by default.

Returns

integer bottom range: The current bottom range calculated by the bottom range sensor (cm default). -100 or 0 when the sensor returns an error. 999.9 when the detected object is out of range (1.5 meters) or the sensor timed out.

Example Code

#Python code
import time
from codrone_edu.drone import *

drone = Drone()
drone.pair()


max_bottom_range = 100
drone.takeoff()
drone.set_throttle(50)
current_bottom_range = drone.get_bottom_range("cm")
while current_bottom_range <= max_bottom_range:
  drone.move()
  current_bottom_range = drone.get_bottom_range("cm")
  print(current_bottom_range)
drone.land()


drone.close()

get_front_range()

Description

This is a getter function which returns the current Range from the front range sensor. The default unit of measurement is centimeters. This function uses the front range sensor to measure distance from the drone to the surface in front of the drone.

Syntax

get_front_range()
get_front_range(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

string unit: A string for the unit of measurement that is chosen for the range distance. Available units are "m" (meter), "cm" (centimeter), "mm" (millimeter), or "in" (inch). If a parameter is not specified "cm" is chosen by default.

Returns

integer front range: The current range calculated by the front range sensor (cm by default). -10 or 0 when the sensor returns an error value. 999 when the detected object is out of range (1.5 meters) or the sensor timed out.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.hover(3)
distance = drone.get_front_range()
print(distance)
drone.land()


drone.close()

get_height()

Description

This is a getter function which returns the current height of the drone. The default unit of measurement is centimeters. This function uses the bottom range sensor to measure distance from the drone to the surface below the drone.

Syntax

get_height()
get_height(unit="cm") — "m", "mm", and "in" are other options for unit

Parameters

Returns

integer height: The current range calculated by the bottom range sensor (cm default). -100 or 0 when the sensor returns an error. 999.9 when the detected object is out of range (1.5 meters) or the sensor timed out.

Example Code

#Python code
import time
from codrone_edu.drone import *

drone = Drone()
drone.pair()


max_height = 100
drone.takeoff()
drone.set_throttle(50)
current_height = drone.get_height("cm")
while current_height <= max_height:
  drone.move()
  current_height = drone.get_height("cm")
  print(current_height)
drone.land()


drone.close()

Sensors (Optical Flow Sensor)

get_flow_velocity_x()

Description

Previously named get_flow_x(). This getter function gets the raw data that's proportional to the x-velocity (forward and reverse) of the drone measured by the optical flow sensor.

Syntax

get_flow_velocity_x()

Parameters

None

Returns

integer x-velocity: The velocity of the drone measured by the optical flow sensor in the x direction

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.set_pitch(50)
drone.move(1)
print(drone.get_flow_velocity_x())
drone.land()


drone.close()

get_flow_velocity_y()

Description

Previously named get_flow_y(). This getter function gets the raw data that's proportional to the y-velocity (left and right) of the drone measured by the optical flow sensor.

Syntax

get_flow_velocity_y()

Parameters

None

Returns

integer y-velocity: The velocity of the drone measured by the optical flow sensor in the y direction

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.set_roll(50)
drone.move(1)
print(drone.get_flow_velocity_y())
drone.land()


drone.close()

get_flow_x()

warning

This function has been deprecated and will be removed in a future release. Please use get_flow_velocity_x() instead.

Description

This getter function gets the raw data that's proportional to the x-velocity (forward and reverse) of the drone measured by the optical flow sensor.

Syntax

get_flow_x()

Parameters

None

Returns

integer x-velocity: The velocity of the drone measured by the optical flow sensor in the x direction

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.set_pitch(50)
drone.move(1)
print(drone.get_flow_x())
drone.land()


drone.close()

get_flow_y()

warning

This function has been deprecated and will be removed in a future release. Please use get_flow_velocity_y() instead.

Description

This getter function gets the raw data that's proportional to the y-velocity (left and right) of the drone measured by the optical flow sensor.

Syntax

get_flow_y()

Parameters

None

Returns

integer y-velocity: The velocity of the drone measured by the optical flow sensor in the y direction

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
drone.set_roll(50)
drone.move(1)
print(drone.get_flow_y())
drone.land()


drone.close()

Sensors (Gyroscope Sensor)

get_accel_x()

Description

Previously named get_x_accel(). Getter function that gets the x acceleration of the drone. (x is forwards and backwards)

Syntax

get_accel_x()

Parameters

None

Returns

integer x-acceleration: The current x acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_accel_x())
drone.land()


drone.close()

get_accel_y()

Description

Previously named get_y_accel(). Getter function that gets the y acceleration of the drone. (y is left and right)

Syntax

get_accel_y()

Parameters

None

Returns

integer y-acceleration: The current y acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_accel_y())
drone.land()


drone.close()

get_accel_z()

Description

Previously named get_z_accel(). Getter function that gets the z acceleration of the drone. (z is up and down)

Syntax

get_accel_z()

Parameters

None

Returns

integer z-acceleration: The current z acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_accel_z())
drone.land()


drone.close()

get_angle_x()

Description

Previously named get_x_angle(). This is a getter function which returns the current X angle from the gyroscope in the drone. This angle is on the "roll" axis.

Syntax

get_angle_x()

Parameters

None

Returns

integer roll angle: The current angle in regards to the X direction in degrees.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_angle_x())

drone.close()

get_angle_y()

Description

Previously named get_y_angle(). This is a getter function which returns the current Y angle from the gyroscope in the drone. This angle is on the "pitch" axis.

Syntax

get_angle_y()

Parameters

None

Returns

integer pitch angle: The current angle in regards to the Y direction, in degrees.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_angle_y())

drone.close()

get_angle_z()

Description

Previously named get_z_angle(). This is a getter function which returns the current Z angle from the drone. This is angle is the "yaw" direction.

Syntax

get_angle_z()

Parameters

None

Returns

integer yaw angle: The current angle in regards to the Z direction.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_angle_z())

drone.close()

get_angular_speed_x()

Description

This function returns the current angular speed in degrees per second around the x-axis ("roll" axis).

Syntax

get_angular_speed_x()

Parameters

None

Returns

integer angular speed: positive or negative angle speed in degrees per second

Example Code

Tilt the drone left and right while the program runs to see the angular speed change. Then, hold the drone as still as possible and watch angular speed drop.

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


for i in range(100):
    print(drone.get_angular_speed_x())
    time.sleep(0.05)


drone.close()

get_angular_speed_y()

Description

This function returns the current angular speed in degrees per second around the y-axis ("pitch" axis).

Syntax

get_angular_speed_y()

Parameters

None

Returns

integer angular speed: positive or negative angle speed in degrees per second

Example Code

Tilt the drone forward and backward while the program runs to see the angular speed change. Then, hold the drone as still as possible and watch angular speed drop.

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


for i in range(100):
    print(drone.get_angular_speed_y())
    time.sleep(0.05)


drone.close()

get_angular_speed_z()

Description

This function returns the current angular speed in degrees per second around the z-axis ("yaw" axis).

Syntax

get_angular_speed_z()

Parameters

None

Returns

integer angular speed: positive or negative angle speed in degrees per second

Example Code

Turn the drone left and right on a flat surface while the program runs to see the angular speed change. Then, hold the drone as still as possible and watch angular speed drop.

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


for i in range(100):
    print(drone.get_angular_speed_z())
    time.sleep(0.05)


drone.close()

get_x_accel()

warning

This function has been deprecated and will be removed in a future release. Please use get_accel_x() instead.

Description

Getter function that gets the x acceleration of the drone. (x is forwards and backwards)

Syntax

get_x_accel()

Parameters

None

Returns

integer x-acceleration: The current x acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_x_accel())
drone.land()


drone.close()

get_x_angle()

warning

This function has been deprecated and will be removed in a future release. Please use get_angle_x() instead.

Description

This is a getter function which returns the current X angle from the gyroscope in the drone. This angle is on the "roll" axis.

Syntax

get_x_angle()

Parameters

None

Returns

integer roll angle: The current angle in regards to the X direction in degrees.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_x_angle())

drone.close()

get_y_accel()

warning

This function has been deprecated and will be removed in a future release. Please use get_accel_y() instead.

Description

Getter function that gets the y acceleration of the drone. (y is left and right)

Syntax

get_y_accel()

Parameters

None

Returns

integer y-acceleration: The current y acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_y_accel())
drone.land()


drone.close()

get_y_angle()

warning

This function has been deprecated and will be removed in a future release. Please use get_angle_y() instead.

Description

This is a getter function which returns the current Y angle from the gyroscope in the drone. This angle is on the "pitch" axis.

Syntax

get_y_angle()

Parameters

None

Returns

integer pitch angle: The current angle in regards to the Y direction, in degrees.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_y_angle())

drone.close()

get_z_accel()

warning

This function has been deprecated and will be removed in a future release. Please use get_accel_z() instead.

Description

Getter function that gets the z acceleration of the drone (z is up and down). When the CoDrone EDU is at rest on a flat surface, the gyroscope sensor should be reading a value of 9.8 * 10 meters per second squared (m/s²) due to gravity.

Syntax

get_z_accel()

Parameters

None

Returns

integer z-acceleration: The current z acceleration of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.takeoff()
print(drone.get_z_accel())
drone.land()


drone.close()

get_z_angle()

warning

This function has been deprecated and will be removed in a future release. Please use get_angle_z() instead.

Description

This is a getter function which returns the current Z angle from the drone. This is angle is the "yaw" direction.

Syntax

get_z_angle()

Parameters

None

Returns

integer yaw angle: The current angle in regards to the Z direction.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_z_angle())

drone.close()

reset_gyro()

Description

Previously named reset_sensor(). This function will reset the roll, pitch, and yaw angles back to zero.

Syntax

reset_gyro()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


print("Before")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())
drone.takeoff()
drone.set_yaw(50)
drone.move(1)
drone.land()
print("After")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())
drone.reset_gyro() 
print("Reset")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())


drone.close()

reset_sensor()

warning

This function has been deprecated and will be removed in a future release. Please use reset_gyro() instead.

Description

This function will reset the gyro angles back to zero for roll, pitch, and yaw.

Syntax

reset_sensor()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


print("Before")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())
drone.takeoff()
drone.set_yaw(50)
drone.move(1)
drone.land()
print("After")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())
drone.reset_sensor() 
print("Reset")
print("X angle:", drone.get_x_angle())
print("Y angle:", drone.get_y_angle())
print("Z angle:", drone.get_z_angle())


drone.close()

Sensors (Pressure Sensor)

get_drone_temperature()

Description

Previously named get_temperature(). This is a getter function gets the drone's temperature from the barometer. The sensor reads the drone’s temperature, not the air around it. Default unit is Celsius.

Syntax

get_drone_temperature()
get_drone_temperature(unit)

Parameters

string unit: A string for the unit of temperature of the drone. Available units are "C" (Celsius), "F" (Fahrenheit), and "K" (Kelvin).

Returns

integer temperature: The temperature of the drone in the given unit as a float. Default unit is Celsius.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

temperature = drone.get_drone_temperature()
print(temperature)

drone.close()

get_temperature()

warning

This function has been deprecated and will be removed in a future release. Please use get_drone_temperature() instead.

Description

This is a getter function gets the drone's temperature from the barometer. The sensor reads the drone’s temperature, not the air around it. Default unit is Celsius.

Syntax

get_temperature()
get_temperature(unit)

Parameters

string unit: A string for the unit of temperature of the drone. Available units are "C" (Celsius), "F" (Fahrenheit), and "K" (Kelvin).

Returns

integer temperature: The temperature of the drone in the given unit as a float. Default unit is Celsius.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

temperature = drone.get_temperature()
print(temperature)

drone.close()

height_from_pressure()

Description

This function gets the drone's current height in centimeters based on the initial pressure sensor reading. You must call set_initial_pressure() to establish a reference point.

Syntax

height_from_pressure()
height_from_pressure(b, m)

Parameters

float b: slope intercept in pascals (default is set to 0)
float m: slope in centimeters/pascals (default is set to 9.34)

Returns

float height: Estimated height in centimeters relative to starting position.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.set_initial_pressure() # Take an initial pressure reading as a reference 

for i in range(300):
    print(drone.height_from_pressure(), " centimeters")
    time.sleep(0.2)

drone.close()

get_pressure()

Description

This is a getter function that returns the data from the barometer. The function returns a value in the unit Pascals. Note: 1atm = 101325 Pa

Syntax

get_pressure()

Parameters

None

Returns

float pressure: air pressure measured by barometer in Pascals.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


# print the pressure
pressure = drone.get_pressure()
print(pressure)


drone.close()

set_initial_pressure()

Description

This function saves an initial pressure reading to the drone. This function is used in combination with other functions such as height_from_pressure()

Syntax

set_initial_pressure()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


# Here is where we save our initial pressure. Now the 'height_from_pressure()' function has a reference for height
drone.set_initial_pressure()

# The drone will not take off in this example but by moving it up and down manually the resulting height will print
for i in range(300):
    print(drone.height_from_pressure(), " millimeters")
    time.sleep(0.2)


drone.close()

Sensors (Color Sensor)

append_color_data()

warning

This function is currently unavailable for Python for Robolink.

Description

append_color_data() is a function that adds onto an existing dataset of custom color prediction data. the dataset parameter must already exist in order to use this function.

Syntax

append_color_data(label, data, dataset)

Parameters

string label: label name that will be used for the filename.
list data: HSV data samples
string dataset: Folder name where the text file will be stored.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


dataset = "color_data"
colors = ["green", "purple", "red", "lightblue", "blue", "yellow", "black", "white"]
for color in colors:
    data = []
    samples = 500
    for i in range(1):
        print("Sample: ", i+1)
        next = input("Press enter to calibrate " + color)
        print("0% ", end="")
        for j in range(samples):
            color_data = drone.get_color_data()[0:9]
            data.append(color_data)
            time.sleep(0.005)
            if j % 10 == 0:
                print("-", end="")
        print(" 100%")
    drone.append_color_data(color, data, dataset)
print("Done calibrating.")


drone.close()

get_back_color()

Description

get_back_color() is a getter function that calls get_color_data() but only returns the data for the back color sensor.

Syntax

get_back_color()

Parameters

None

Returns

back color data: Returns the back color sensor data.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

color_data = drone.get_back_color()
print(color_data)

drone.close()

get_color_data()

Description

Getter function that gets a list of color data from the drone.

Syntax

get_color_data()

Parameters

None

Returns

list color data: Returns a list of color data.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

color_data = drone.get_color_data()

drone.close()

get_colors()

Description

get_colors() is a getter function that returns one of the 8 pre-calibrated colors (provided in the color cards).

Syntax

get_colors()

Parameters

None

Returns

list predictions: Returns a list containing the front and back color sensor predictions as strings (Red, Green, Yellow, Blue, Cyan, Magenta, Black, White, Unknown)

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

colors = drone.get_colors()
print(colors)

drone.close()

get_front_color()

Description

get_front_color() is a getter function that calls get_color_data() but only returns the data for the front color sensor.

Syntax

get_front_color()

Parameters

None

Returns

front color data: Returns the back color sensor data.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

color_data = drone.get_front_color()
print(color_data)

drone.close()

load_classifier()

warning

This function has been deprecated and will be removed in a future release. Please use load_classifier() instead.

warning

This function is currently unavailable for Python for Robolink.

Description

load_classifier() is a function that can load a custom color set onto the CoDrone EDU. If no custom color set is given then the default color set is loaded. There is also an option to show the color set as a graph.

Syntax

load_classifier()
load_classifier(dataset, show_graph)

Parameters

string dataset: An optional parameter to load a custom color set. If no color set is given then the default color set will be used. boolean show_graph: An optional boolean parameter that will show a graph of the color set data. The default value is False.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


# This example assumes the "custom_color_data" directory exists
drone.load_classifier("custom_color_data")

color_data = drone.get_color_data()
color = drone.predict_colors(color_data)
print(color)


drone.close()

load_color_data()

warning

This function is currently unavailable for Python for Robolink.

Description

Previously name load_classifier(). load_color_data() is a function that can load a custom color set onto the CoDrone EDU. If no custom color set is given then the default color set is loaded. There is also an option to show the color set as a graph.

Syntax

load_color_data()
load_color_data(dataset, show_graph)

Parameters

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


# This example assumes the "custom_color_data" directory exists
drone.load_color_data("custom_color_data")

color_data = drone.get_color_data()
color = drone.predict_colors(color_data)
print(color)


drone.close()

new_color_data()

warning

This function is currently unavailable for Python for Robolink.

Description

new_color_data() is a function that creates a new dataset of custom color prediction data.

Syntax

new_color_data(label, data, dataset)

Parameters

string label: label name that will be used for the filename.
list data: HSV data samples
string dataset: Folder name where the text file will be stored.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


dataset = "color_data"
colors = ["green", "purple", "red", "lightblue", "blue", "yellow", "black", "white"]
for color in colors:
    data = []
    samples = 500
    for i in range(1):
        print("Sample: ", i+1)
        next = input("Press enter to calibrate " + color)
        print("0% ", end="")
        for j in range(samples):
            color_data = drone.get_color_data()[0:9]
            data.append(color_data)
            time.sleep(0.005)
            if j % 10 == 0:
                print("-", end="")
        print(" 100%")
    drone.new_color_data(color, data, dataset)
print("Done calibrating.")


drone.close()

predict_colors()

warning

This function is currently unavailable for Python for Robolink.

Description

Predicts what color the color sensors are currently seeing.

Syntax

predict_colors(color_data)

Parameters

list color_data: loaded from drone.get_color_data()

Returns

list predictions: A prediction of which color the front and back color sensors are currently seeing, as a list.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


drone.load_color_data("color_data_file")
color_data = drone.get_color_data()
color = drone.predict_colors(color_data)
print(color)


drone.close()

Sensors (State Data)

get_battery()

Description

This function returns the current battery level percentage of the drone.

Syntax

get_battery()

Parameters

None

Returns

integer battery percentage: The current battery percentage of the drone's battery.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

battery = drone.get_battery()
print(battery)

drone.close()

get_error_data()

Description

This command requests if the drone is in an error state. One or more of the following error states can be printed to console.

Motion_Calibrating: Drone is calibrating.
Motion_NoAnswer: Gyroscope Accelerometer is unresponsive and may be damaged.
Motion_WrongValue: Gyroscope Accelerometer is giving erroneous data.
Motion_NotCalibrated: Gyroscope Accelerometer is not calibrated.
Pressure_NoAnswer: Barometer is unresponsive.
Pressure_WrongValue: Barometer is giving erroneous data.
RangeGround_NoAnswer: Bottom Range sensor is unresponsive.
RangeGround_WrongValue: Bottom range sensor has given an incorrect value.
Flow_NoAnswer: Optical flow sensor is unresponsive.
Flow_CannotRecognizeGroundImage: Optical flow sensor is giving erroneous data due to the image.
NotRegistered: Device is not registered.
FlashReadLock_UnLocked: Flash memory read lock not engaged.
BootloaderWriteLock_UnLocked: Bootloader write lock not engaged.
LowBattery: Drone has low battery.
TakeoffFailure_CheckPropellerAndMotor: Takeoff failure. Check propeller and motor.
CheckPropellerVibration: Propeller vibration detected.
Attitude_NotStable: Attitude not stable.
CanNotFLip_LowBattery: Drone won't flip due to low battery (< 50%).
CanNotFlip_TooHeavy: Drone won't flip due to being too heavy (probably due to payload attached to drone).

Syntax

get_error_data()
get_error_data(delay)

Parameters

float delay: The delay in seconds that the command will wait for a response. The default value is 0.1.

Returns

string error state: text consisting of one or more error messages

Example Code

Turn the drone left and right on a flat surface while the program runs to see the angular speed change. Then, hold the drone as still as possible and watch angular speed drop.

#Python code
from time import sleep
from codrone_edu.drone import *
from codrone_edu.protocol import *

drone = Drone()
drone.pair()


# For demonstration purposes, activate motion calibration
drone.sendCommand(CommandType.ClearBias)
sleep(0.1)
for i in range(10):
    drone.get_error_data() # see motion error state during calibration
    time.sleep(0.5)


drone.close()

get_flight_state()

Description

get_flight_state() is a getter function that gets the current flight state of the drone.

Syntax

get_flight_state()

Parameters

None

Returns

string state: The current flight state of the drone.

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

print(drone.get_flight_state())

drone.close()

get_movement_state()

Description

This command requests the moving state of the drone, whether it is ready to fly, hovering, etc.

Syntax

get_movement_state()

Parameters

None

Returns

enum ModeMovement: The movement state of the drone (None_, Ready, Hovering, ReturnHome)

Example Code

from codrone_edu.drone import *
drone = Drone()

drone.pair()
print(drone.get_movement_state()) # prints "ModeMovement.Ready" after pairing

drone.takeoff()
print(drone.get_movement_state()) # "ModeMovement.Hovering" after takeoff

drone.land()
drone.close()

get_sensor_data()

Description

This functions returns a list of 31 values including time stamps and sensor values. It requests 5 distinct lists of data and compiles them into one list. This function returns data more quickly than individual sensor requests.

Syntax

get_sensor_data()
get_sensor_data(delay)

Parameters

integer delay: The delay in seconds for each sensor request (out of 5). The total delay will be 5x this delay value. The default value is 0.1 seconds.

Returns

list sensor data: A list of length 31 consisted of sensor data.

data[0] Altitude time stamp
data[1] Temperature in Celsius
data[2] Pressure (Pascals)
data[3] Elevation output from barometer (meters)
data[4] Height value output from bottom range sensor (meters)
data[5] Motion data time stamp
data[6] acceleration X Int16 2 Byte -1568 ~ 1568 (-156.8 ~ 156.8) m/s2 x 10 X
data[7] acceleration Y Int16 2 Byte -1568 ~ 1568 (-156.8 ~ 156.8) m/s2 x 10 Y
data[8] acceleration Z Int16 2 Byte -1568 ~ 1568 (-156.8 ~ 156.8) m/s2 x 10 Z
data[9] gyroRoll: Int16 2 Byte -2000 ~ 2000 degree/second Roll
data[10] gyroPitch Int16 2 Byte -2000 ~ 2000 degree/second Pitch
data[11] gyroYaw Int16 2 Byte -2000 ~ 2000 degree/second Yaw
data[12] angleRoll Int16 2 Byte -180 ~ 180 degree Roll
data[13] anglePitch Int16 2 Byte -180 ~ 180 degree Pitch
data[14] angleYaw Int16 2 Byte -180 ~ 180 degree Yaw
data[15] Position data time stamp
data[16] x Float32 4 Byte - X axis in meters
data[17] y Float32 4 Byte - Y axis in meters
data[18] z Float32 4 Byte - z axis in meters
data[19] Range sensor data time stamp
data[20] Front range sensor (millimeters)
data[21] Bottom range sensor (millimeters)
data[22] Drone state time stamp
data[23] modeSystem (system operating mode)
data[24] modeFlight (flight controller operating mode)
data[25] modeControlFlight (flight control mode)
data[26] modeMovement (moving state)
data[27] headless (headless setting status)
data[28] sensorOrientation (sensor orientation)
data[29] battery parcentage level
data[30] current speed setting

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

# collect multiple data points
data = drone.get_sensor_data()
for i in range(len(data)):

    print(i, data[i])  # print out each data point

drone.close()

Controller

down_arrow_pressed()

Description

A function that determines if the controller's down arrow button has been pressed.

Syntax

down_arrow_pressed()

Parameters

None

Returns

boolean pressed down: True if the down arrow button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.down_arrow_pressed():
        print("down arrow button has been pressed!")


drone.close()

get_button_data()

Description

get_button_data() is a function that will return a list of information about the most recent button pressed.

Syntax

get_button_data()

Parameters

None

Returns

list button data: A list of data that includes the time of the current program, the number associated with the most recent button pressed, and finally the state of the most recent button pressed. (Down, Pressed, Up)

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()

while True:
    time.sleep(0.1)
    print(drone.get_button_data())


drone.close()

h_pressed()

Description

A function that determines if the controller's H button has been pressed.

Syntax

h_pressed()

Parameters

None

Returns

boolean pressed H: True if the H button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()

while True:
    time.sleep(0.1)
    if drone.h_pressed():
        print("H button has been pressed!")


drone.close()

l1_pressed()

Description

A function that determines if the controller's L1 button has been pressed.

Syntax

l1_pressed()

Parameters

None

Returns

boolean pressed L1: True if the L1 button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()

while True:
    time.sleep(0.1)
    if drone.l1_pressed():
        print("L1 button has been pressed!")


drone.close()

l2_pressed()

Description

A function that determines if the controller's L2 button has been pressed.

Syntax

l2_pressed()

Parameters

None

Returns

boolean pressed L2: True if the L2 button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()

while True:
    time.sleep(0.1)
    if drone.l2_pressed():
        print("L2 button has been pressed!")


drone.close()

left_arrow_pressed()

Description

A function that determines if the controller's left arrow button has been pressed.

Syntax

left_arrow_pressed()

Parameters

None

Returns

boolean pressed left: True if the left arrow button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.left_arrow_pressed():
        print("left arrow button has been pressed!")


drone.close()

p_pressed()

Description

A function that determines if the controller's P button has been pressed.

Syntax

p_pressed()

Parameters

None

Returns

boolean pressed P: True if the P button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.p_pressed():
        print("P button has been pressed!")


drone.close()

power_pressed()

Description

A function that determines if the controller's power button has been pressed. Since pressing the power button also switches the drone to flight mode, this function only detects alternate button presses. In other words, the function can only detect a power button press when in LINK state.

Syntax

power_pressed()

Parameters

None

Returns

boolean pressed power: True if the power button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.power_pressed():
        print("power button has been pressed!")


drone.close()

r1_pressed()

Description

A function that determines if the controller's R1 button has been pressed.

Syntax

r1_pressed()

Parameters

None

Returns

boolean pressed R1: True if the R1 button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.r1_pressed():
        print("R1 button has been pressed!")


drone.close()

r2_pressed()

Description

A function that determines if the controller's R2 button has been pressed.

Syntax

r2_pressed()

Parameters

None

Returns

boolean pressed R2: True if the R2 button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.r2_pressed():
        print("R2 button has been pressed!")


drone.close()

right_arrow_pressed()

Description

A function that determines if the controller's right arrow button has been pressed.

Syntax

right_arrow_pressed()

Parameters

None

Returns

boolean pressed right: True if the right arrow button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.right_arrow_pressed():
        print("right arrow button has been pressed!")


drone.close()

s_pressed()

Description

A function that determines if the controller's S button has been pressed.

Syntax

s_pressed()

Parameters

None

Returns

boolean pressed S: True if the S button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.s_pressed():
        print("S button has been pressed!")


drone.close()

up_arrow_pressed()

Description

A function that determines if the controller's up arrow button has been pressed.

Syntax

up_arrow_pressed()

Parameters

None

Returns

boolean pressed up: True if the up arrow button is pressed or held. Otherwise the function will return false.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    if drone.up_arrow_pressed():
        print("up arrow button has been pressed!")


drone.close()

get_joystick_data()

Description

get_joystick_data() is a getter function that gets a list of data about the state of both joysticks on the controller.

Syntax

get_joystick_data()

Parameters

None

Returns

list joystick data: A list of data that includes the time of the current program, and information about the left and right joysticks.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    print(drone.get_joystick_data())


drone.close()

get_left_joystick_x()

Description

get_left_joystick_x() is a getter function that gets the position of the left joystick's x position.

Syntax

get_left_joystick_x()

Parameters

None

Returns

integer left joystick x-value: A value between -100 and 100 depending on the x position of the left joystick.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    print(drone.get_left_joystick_x())


drone.close()

get_left_joystick_y()

Description

get_left_joystick_y() is a getter function that gets the position of the left joystick's y position.

Syntax

get_left_joystick_y()

Parameters

None

Returns

integer left joystick y-value: A value between -100 and 100 depending on the y position of the left joystick.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    print(drone.get_left_joystick_y())


drone.close()

get_right_joystick_x()

Description

get_right_joystick_x() is a getter function that gets the position of the right joystick's x position.

Syntax

get_right_joystick_x()

Parameters

None

Returns

integer right joystick x-value: A value between -100 and 100 depending on the x position of the right joystick.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    print(drone.get_right_joystick_x())


drone.close()

get_right_joystick_y()

Description

get_right_joystick_y() is a getter function that gets the position of the right joystick's y position.

Syntax

get_right_joystick_y()

Parameters

None

Returns

integer right joystick y-value: A value between -100 and 100 depending on the y position of the right joystick.

Example Code

#Python code
from codrone_edu.drone import *
import time

drone = Drone()
drone.pair()


while True:
    time.sleep(0.1)
    print(drone.get_right_joystick_y())


drone.close()

Screen

controller_clear_screen()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Clears all drawings from the controller screen

Syntax

controller_clear_screen()
controller_clear_screen(pixel)

Parameters

string pixel: optional parameter that assigns all pixels to either white or black. white is the default value.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()
drone.controller_draw_rectangle(20, 30, 40, 10, image, 'black')
drone.controller_draw_canvas(image)

time.sleep(3)
drone.controller_clear_screen() # only clears screen, does not modify the image object
time.sleep(3)

image = drone.controller_create_canvas()
drone.controller_draw_string(60, 30, "Hello World!", image)
drone.controller_draw_canvas(image)

drone.close()

controller_create_canvas()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Creates a new image object for drawing on the controller. You can create a canvas with a white or black background.

Syntax

controller_create_canvas()
controller_create_canvas(color="white")

Parameters

None

Returns

Image image: Returns a new image object that is 127 x 63 pixels

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

# creates an image object, the canvas
image = drone.controller_create_canvas() # see controller_draw_canvas() for how to draw on this new image object

drone.close()

controller_draw_arc()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws an arc (a portion of a circle outline) between the start and end angles, inside the given bounding box.

Syntax

controller_draw_arc(arc_list, start_angle, end_angle, image)
controller_draw_arc(arc_list, start_angle, end_angle, image, pixel_width=1)

Parameters

list arc_list: Two points to define the bounding box. Sequence of [(x0, y0), (x1, y1)], where x1 >= x0 and y1 >= y0.
integer start_angle: Starting angle, in degrees. Angles are measured from 3 o’clock, increasing clockwise.
integer end_angle: Ending angle, in degrees.
Image image: image object created from controller_create_canvas().
string color: color of arc. By default, color is black.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates image object, the canvas

arc_list = [(20, 40), (50, 50)]
drone.controller_draw_arc(arc_list, 0, 180, image) # set arc onto image object

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_canvas()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws custom image canvas onto the controller screen

Syntax

controller_draw_canvas(image)

Parameters

Image image: image object to be drawn onto the controller screen

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


image = drone.controller_create_canvas()  # creates image object, the canvas

arc_list = [(20, 40), (50, 50)]
ellipse_list = [(10, 10), (40, 40)]
chord_list = [(60, 20), (100, 50)]

drone.controller_draw_ellipse(ellipse_list, image) # draw onto image object
drone.controller_draw_arc(arc_list, 0, 180, image)
drone.controller_draw_chord(chord_list, 0, 180, image)


drone.controller_draw_canvas(image)  # draw image onto controller screen


drone.close()

controller_draw_chord()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Same as controller_draw_arc(), but connects the end points with a straight line.

Syntax

controller_draw_chord(arc_list, start_angle, end_angle, image)
controller_draw_chord(arc_list, start_angle, end_angle, image, color="black", fill_in=None, pixel_width=1)

Parameters

list chord_list: Two points to define the bounding box. Sequence of [(x0, y0), (x1, y1)], where x1 >= x0 and y1 >= y0.

integer start_angle: Starting angle, in degrees. Angles are measured from 3 o’clock, increasing clockwise.
integer end_angle: Ending angle, in degrees.
Image image: image object created from controller_create_canvas().
string color: color of chord. By default, color is black.
string fill_in: color of fill. By default, no fill in.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates image object, the canvas

chord_list = [(20, 40), (50, 50)]
drone.controller_draw_chord(chord_list, 0, 180, image) # set chord onto image object

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_ellipse()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws an ellipse inside the given bounding box.

Syntax

controller_draw_ellipse(ellipse_list, image)
controller_draw_ellipse(ellipse_list, image, color="black", fill_in=None, pixel_width=1)

Parameters

list ellipse_list: Two points to define the bounding box. Sequence of [(x0, y0), (x1, y1)] where x1 >= x0 and y1 >= y0.
Image image: image object created from controller_create_canvas().
string color: color of ellipse. By default, color is black.
string fill_in: color of fill. By default, no fill in.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates an image object, the canvas

ellipse_list = [(10, 10), (40, 40)]
drone.controller_draw_ellipse(ellipse_list, image) # set ellipse onto image object

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_image()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

warning

This function is currently unavailable for Python for Robolink.

Description

Draws image when given a pixel_list of image data

Syntax

controller_draw_image(pixel_list)

Parameters

list pixel_list: the list of image data. can be obtained using get_image_data() function.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.get_image_data("example.png") # where example.png is an image in the same directory as the program

drone.controller_draw_image(image) # draws the image onto the controller's screen

drone.close()

controller_draw_line()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a line between points (x1, y1) and (x2, y2)

(x1,y1) \
         \
          \
           \ (x2,y2)

Syntax

controller_draw_line(x1, y1, x2, y2, image)
controller_draw_line(x1, y1, x2, y2, image, color="black", pixel_width=1)

Parameters

integer x1: point 1 x coordinate
integer y1: point 1 y coordinate
integer x2: point 2 x coordinate
integer y2: point 2 y coordinate
Image image: image object created from controller_create_canvas().
string color: color of line. By default, color is black
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates an image object, the canvas

drone.controller_draw_line(0,0, 60, 60, image) # draws a line from (0,0) to (60,60)

drone.controller_draw_canvas(image) # draw image onto controller screen

drone.close()

controller_draw_point()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a single pixel at the point (x,y)

Syntax

controller_draw_point(x, y, image)
controller_draw_point(x, y, image, color="black")

Parameters

integer x: x coordinate
integer y: y coordinate
Image image: image object created from controller_create_canvas()
string color: color of point. By default, color is black.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates an image object, the canvas

drone.controller_draw_point(10, 10, image) # place a pixel at the (10,10) coordinate of canvas

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_polygon()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

The polygon outline consists of straight lines between the given coordinates, plus a straight line between the last and the first coordinate.

Syntax

controller_draw_polygon(point_list, image)
controller_draw_polygon(point_list, image, color="black", fill_in=None, pixel_width=1)

Parameters

list point_list: the list of coordinates
Image image: image object created from controller_create_canvas().
string color: color of polygon. By default, color is black.
string fill_in: color of fill. By default, no fill in.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas() # creates an image object, the canvas

point_list = [(0, 0), (15,15), (30,0)] # list of points that will be connected to draw a polygon

drone.controller_draw_polygon(point_list, image) # forms polygon using list of points

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_rectangle()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a rectangle onto the controller screen starting from point (x,y) and extends to given height and width

width
(x,y)|---------------|
     |               | height
     |_______________|

Syntax

controller_draw_rectangle(x, y, width, height, image)
controller_draw_rectangle(x, y, width, height, image, color="black" fill_in=None, pixel_width=1)

Parameters

integer x: top left corner x coordinate
integer y: top left corner y coordinate
integer width: width of rectangle
integer height: height of rectangle
Image image: image object created from controller_create_canvas().
string color: color of rectangle. By default, color is black.
string fill_in: color of fill. By default, no fill in.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas()  # creates an image object, the canvas

# draws rectangle starting at (0,0) on canvas with width of 40px and height of 20px
drone.controller_draw_rectangle(0, 0, 40, 20,image)

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_square()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a square on the controller screen starting from point (x,y) and will extend to the given width

width
(x,y)|------|
     |      | width
     |______|

Syntax

controller_draw_square(x, y, width, image)
controller_draw_square(x, y, width, image, color="black", fill_in=None, pixel_width=1)

Parameters

integer x: top left corner x coordinate
integer y: top left corner y coordinate
integer width: width of square
Image image: image object created from controller_create_canvas().
string color: color of square. By default, color is black.
string fill_in: color of fill. By default, no fill in.
integer pixel_width: optional parameter that is the line width, in pixels. default value is 1.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


image = drone.controller_create_canvas()  # creates an image object, the canvas

# draws a square on canvas that's 30 x 30px at (0, 0)
drone.controller_draw_square(0, 0, 30, image)

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_string_align()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a string from the given x_start, x_end and y positions. The string can be aligned along the x_start and x_end positions.

Syntax

controller_draw_string_align(x_start, x_end, y, string, image)
controller_draw_string_align(x_start, x_end, y, string, image, color="black", alignment="left")

Parameters

integer x_start: starting x position
integer x_end: ending x position
integer y: y position
string string: the string to write
Image image: image object created from controller_create_canvas().
string color: color of string. By default, color is black.
string alignment: optional parameter that is the alignment between x_start and x_end. can align left, right, or center. default value is left

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


image = drone.controller_create_canvas() # creates an image object, the canvas

# draws string on canvas that is aligned to the right, between x=0 and x=100 at position y=0.
drone.controller_draw_string_align(0, 100, 0, "Hello, world!", image, alignment="right")

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_draw_string()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

Description

Draws a string from the given x_start, x_end and y positions. The string can be aligned along the x_start and x_end positions

Syntax

controller_draw_string(x, y, string, image)
controller_draw_string(x, y, string, image, color="black")

Parameters

integer x: starting x position
integer y: starting y position
string string: the string to write
Image image: image object created from controller_create_canvas().
string color: color of string. By default, color is black.

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()

image = drone.controller_create_canvas() # creates an image object, the canvas

drone.controller_draw_string(0, 0, "Hello, world!", image) # draw "Hello, world!" on image object at (0,0)

drone.controller_draw_canvas(image)  # draw image onto controller screen

drone.close()

controller_preview_canvas()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

warning

This function is currently unavailable for Python for Robolink.

Description

Creates a pop up window to preview image object from the most recent controller_create_canvas() call onto your computer screen. NOTE: Preview image will reset every time controller_create_canvas() is called.

Syntax

controller_preview_canvas()

Parameters

None

Returns

None

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


image = drone.controller_create_canvas()  # create image object, the canvas

arc_list = [(20, 40), (50, 50)]
ellipse_list = [(10, 10), (40, 40)]
chord_list = [(60, 20), (100, 50)]

drone.controller_draw_ellipse(ellipse_list, image) # draw onto image object
drone.controller_draw_arc(arc_list, 0, 180, image)
drone.controller_draw_chord(chord_list, 0, 180, image)

drone.controller_preview_canvas()  # a window will pop up with your drawing


drone.close()

get_image_data()

warning

This function is currently unavailable for CoDrone EDU (JROTC ed.).

warning

This function is currently unavailable for Python for Robolink.

Description

This function retrieves .png or .jpg file and resizes to fit inside controller.

Syntax

get_image_data(image_file_name)

Parameters

string image_file_name: the name of the image file, including file extension (ex. "image.png")

Returns

list image_data: list consisting of RGB values

Example Code

#Python code
from codrone_edu.drone import *

drone = Drone()
drone.pair()


img_list = ("images/boom.png", "images/flower.png", "images/mario.png", "images/pikachu.jpg", "images/rose.jpg", "images/troll_face.png", "images/pixel_dino.png")

for i in range(len(img_list)):
    img = drone.get_image_data(img_list[i]) # img stores image data
    drone.controller_draw_image(img) # draws image on controller
    time.sleep(1)

Connection​

pair()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

close()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

Flight Commands​

takeoff()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

land()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

emergency_stop()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

hover()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

avoid_wall()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

keep_distance()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

get_trim()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

reset_trim()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

set_trim()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

move_forward()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

move_backward()​

Description​

Syntax​

Parameters​

Returns​

Example Code​

Connection

pair()

Description

Syntax

Parameters

Returns

Example Code

close()

Description

Syntax

Parameters

Returns

Example Code

Flight Commands

takeoff()

Description

Syntax

Parameters

Returns

Example Code

land()

Description

Syntax

Parameters

Returns

Example Code

emergency_stop()

Description

Syntax

Parameters

Returns

Example Code

hover()

Description

Syntax

Parameters

Returns

Example Code

avoid_wall()

Description

Syntax

Parameters

Returns

Example Code

keep_distance()

Description

Syntax

Parameters

Returns

Example Code

get_trim()

Description

Syntax

Parameters

Returns

Example Code

reset_trim()

Description

Syntax

Parameters

Returns

Example Code

set_trim()

Description

Syntax

Parameters

Returns

Example Code

move_forward()

Description

Syntax

Parameters

Returns

Example Code

move_backward()

Description

Syntax

Parameters

Returns

Example Code