heart_control/work_led.py

from machine import Pin, PWM
import time
from machine import Timer

class WorckLed:
    def __init__(self, pin_num) -> None:
        self.led = Pin(pin_num, Pin.OUT)
        # self.tim = MyTimer(0)
        # self.tim.init(0, 1, self.blink)
    def on(self):
        self.led.value(1)
        print('on')

    def off(self):
        self.led.value(0)
        print('off')

    def blink(self, tim):
        if self.led.value():
            self.tim.init(1, 1200, self.blink)
            self.off()
        else:
            self.tim.init(1, 5, self.blink)
            self.on()

# 协程的方式
import uasyncio
async def work_led_blink(led=Pin(2, Pin.OUT), on_t=10, off_t=1200):
    while True:
        led.value(1)
        await uasyncio.sleep_ms(on_t)
        led.value(0)
        await uasyncio.sleep_ms(off_t)

if __name__ == '__main__':
    # led = WorckLed(2)
    uasyncio.run(work_led_blink(led=Pin(2, Pin.OUT), on_t=10, off_t=1200))