找一个蜂鸣器
tune:
[392,392,440,392,523,494,392,392,440,392,587,523,392,392,784,659,523,494,440,698,698,659,523,587,523]
beat:
[0.5,0.5,1,1,1,2,0.5,0.5,1,1,1,2,0.5,0.5,1,1,1,1,1,0.5,0.5,1,1,1,2]
如下操作：
`
import time
from machine import Timer,PWM
#记得改自己的引脚号pin
class Bee:
def init(self):
self.timer_bee = Timer(Timer.TIMER1, Timer.CHANNEL0, mode=Timer.MODE_PWM)
self.pin_bee = PWM(self.timer_bee, freq=1000,duty=0,pin=34)
def bee(self,tune,beat):
self.pin_bee.duty(50)
self.pin_bee.freq(tune)
time.sleep(beat)
self.pin_bee.duty(0)
`
听到是那首曲子了吗？
😄
