MicroPython • IR sensor obstacle avoidance robot.

Code:

# Define the IR sensor pin ir_sensor_pin = 16 # Replace with your actual pin numberfrom machine import Pin, PWMfrom utime import sleep power_level= 35000# Define pinsir_sensor_pin = Pin(16, Pin.IN)  # Replace with your IR sensor pinmotor_left_forward = Pin(18, Pin.OUT)  # Replace with left motor forward pinmotor_left_backward = Pin(19, Pin.OUT) # Replace with left motor backward pinmotor_right_forward = Pin(20, Pin.OUT) # Replace with right motor forward pinmotor_right_backward = Pin(21, Pin.OUT) # Replace with right motor backward pinmotor_left_forward = PWM(Pin(motor_left_forward))motor_left_backward = PWM(Pin(motor_left_backward))motor_right_forward = PWM(Pin(motor_right_forward))motor_right_backwards = PWM(Pin(motor_right_backward))def turn_motor_on(pwm):    pwm.duty_u16(power_level)    def turn_motor_off(pwm):    pwn.duty_u16(0)def stop_motors():    motor_left_forward.value(0)    motor_left_backward.value(0)    motor_right_forward.value(0)    motor_right_backward.value(0)def move_forward():    motor_left_forward.value(1)    motor_left_backward.value(0)    motor_right_forward.value(1)    motor_right_backward.value(0)def turn_right():    motor_left_forward.value(1)    motor_left_backward.value(0)    motor_right_forward.value(0)    motor_right_backward.value(1)def turn_left():    motor_left_forward.value(0)    motor_left_backward.value(1)    motor_right_forward.value(1)    motor_right_backward.value(0)while True:    if ir_sensor_pin.value() == 0:  # Obstacle detected        stop_motors()        # Optional: Implement turning maneuver based on your robot design        # turn_right()          # time.sleep(0.5)      else:  # No obstacle        move_forward() time.sleep(0.1)  # Adjust delay as neededtime.sleep(0.1)  # Add a small delay for stability