Smart Cutebot Samples for Python
3. Smart Cutebot Samples for Python#
3.1. Add Python File#
We need to add Cutebot.py for programming. Click “Load/Save” and then click “Show Files (1)” to see more choices, click “Add file” to add Cutebot.py from the unzipped package of EF_Produce_MicroPython-master.
Create an object.
set_motors_speed(self, left_wheel_speed: int, right_wheel_speed: int)
Set the speed of both wheels:
`left_wheel_speed: int` Speed of the left: -100～100 `right_wheel_speed: int` Speed of the right: -100～100
set_car_light(self, light: int, R: int, G: int, B: int)
Set the color of the headlights：
`light`:Choose the lights `R`:channel color-255` `G`:channel color-255` `B`:channel color-255`
get_distance(self, unit: int = 0)
Get the distance from the ultrasonic sound sensor:
`unit`detecting the distances:` 0 `cm,` 1 `lnch
Get the status from the tracking headers:
return:`00` all in white `10` left in black and right in white `01` left in white and right in black `11` all in black
set_servo(self, servo, angle)
Choose the servos and set the angles/speed:
`servo (number)`choose the servos 1,2 `angle (number)`set the angles of the servo 0~180
Sample 1: Drive the car at a full speed.#
from microbit import * from Cutebot import * ct = CUTEBOT() ct.set_motors_speed(100, 100)
The speed of the left and right wheels is at 100, the car moves forward at the full speed.
Sample 2: Turn the headlights on#
from microbit import * from Cutebot import * ct = CUTEBOT() ct.set_car_light(left, 0, 90, 90) ct.set_car_light(right, 200, 200, 0)
The two headlights light up in different colours.
Sample 3: Obstacles avoidance#
from microbit import * from Cutebot import * dis = CUTEBOT() while(True): i = dis.get_distance(0) if i>3 and i<20: dis.set_motors_speed(-50, 50) sleep(500) else: dis.set_motors_speed(50, 50)
The Cutebot turns its direction once it detects any obstacle ahead of it.
Sample 4: Line-tracking#
from microbit import * from Cutebot import * dis = CUTEBOT() while(True): i = dis.get_tracking() if i == 10: dis.set_motors_speed(10, 50) if i == 1: dis.set_motors_speed(50, 10) if i == 11: dis.set_motors_speed(25, 25)
The Cutebot drives along with the black line.
Sample 5: Control the servo#
from microbit import * from Cutebot import * dis = CUTEBOT() while(True): dis.set_servo(0,180) sleep(1000) dis.set_servo(0,0) sleep(1000)
The servo connecting to S1 continues driving back and forth.
About the reported error:
|speed error,-100~100||The speed of the left/right wheel is beyond the threshold that we set|
|RGB is error||The parameter of the color of the headlight is beyond the threshold that we set|
|select servo error,1,2||The parameter of the servo connections is wrong|
|angle error,0~180||The setting to the angles of the servos is wrong|