openmv/scripts/examples/10-Arduino-Boards/Nicla-Vision/00-Board-Control/pwm_control.py
2022-09-01 00:02:30 +02:00

31 lines
729 B
Python

# 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)