micropython esp32 扬声器模块播放声音

from machine import DAC, Pin, PWM

import math

import time

#创建音乐旋律列表

melody = [

330, 330, 330, 262, 330, 392, 196, 262, 196, 165, 220, 247, 233, 220, 196, 330, 392, 

440, 349, 392, 330, 262, 294, 247, 262, 196, 165, 220, 247, 233, 220, 196, 330, 392,

440, 349, 392, 330, 262, 294, 247, 392, 370, 330, 311, 330, 208, 220, 262, 220, 262,

294, 392, 370, 330, 311, 330, 523, 523, 523, 392, 370, 330, 311, 330, 208, 220, 262,

220, 262, 294, 311, 294, 262, 262, 262, 262, 262, 294, 330, 262, 220, 196, 262, 262,

262, 262, 294, 330, 262, 262, 262, 262, 294, 330, 262, 220, 196]

#创建音调持续时间列表

noteDurations = [

8,4,4,8,4,2,2,

3,3,3,4,4,8,4,8,8,8,4,8,4,3,8,8,3,

3,3,3,4,4,8,4,8,8,8,4,8,4,3,8,8,2,

8,8,8,4,4,8,8,4,8,8,3,8,8,8,4,4,4,8,2,

8,8,8,4,4,8,8,4,8,8,3,3,3,1,

8,4,4,8,4,8,4,8,2,8,4,4,8,4,1,

8,4,4,8,4,8,4,8,2

]

music=PWM(Pin(25))                     

music.duty(512)

for i in range(len(melody)):              #计算melody列表元素的数量并执行循环

  noteDuration = 800/noteDurations[i]

  music.freq(melody[i]*2)

  time.sleep_ms(int(noteDuration * 1.30)) #为每个音调设定时间

music.deinit()

实验效果

   成功下载程序后，你可以听到超级玛丽的经典音乐。