PWM

Example

Initialize the direction of the pin, and print the value of the pin on the screen.

from m5stack import *
from m5stack_ui import *
from uiflow import *
import machine
import time


screen = M5Screen()
screen.clean_screen()
screen.set_screen_bg_color(0xFFFFFF)

i = None

label0 = M5Label('label0', x=137, y=88, color=0x000, font=FONT_MONT_14, parent=None)

PWM0 = machine.PWM(26, freq=50, duty=3, timer=0)
while True:
  for i in range(13):
    PWM0.duty(i)
    wait_ms(1000)
    label0.set_text(str(i))
  wait_ms(2)

API

machine.PWM(26, freq=10000, duty=50, timer=0)

• Set the pin, frequency, duty cycle, and timer selection for generating PWM signals.

PWM0.freq(1)

• Set the PWM frequency.

PWM0.duty(0)

• Set the PWM duty cycle.

PWM0.pause()

• Pause PWM signal generation.

PWM0.resume()

• Resume PWM signal generation.

PWM0.hold_us(0)

• Hold the PWM signal for a few microseconds.