# PWM Control Example # # This example shows how to use PWM. import time from pyb import Pin, Timer class PWM(): def __init__(self, pin, tim, ch): self.pin = pin self.tim = tim self.ch = ch; pwms = { 'PWM1' : PWM('PE12', 1, 1), 'PWM2' : PWM('PE11', 1, 2), # 'PWM3' : PWM('PA9', 1, 2), 'PWM3' : PWM('PA10', 1, 3), 'PWM4' : PWM('PE14', 1, 4), 'PWM5' : PWM('PB8', 4, 3), 'PWM6' : PWM('PB9', 4, 4), } # Generate a 1KHz square wave with 50% cycle on the following PWM. for k, pwm in pwms.items(): tim = Timer(pwm.tim, freq=1000) # Frequency in Hz ch = tim.channel(pwm.ch, Timer.PWM, pin=Pin(pwm.pin), pulse_width_percent=50) while (True): time.sleep_ms(1000)