物联网开发笔记（14）- 使用Wokwi仿真micropython on ESP32开发板实现蜂鸣器(续)

本文章实现几个有趣的小案例。直接上代码。

一、环境

二、代码

main.py

from machine import Pin,PWM
import time
import _thread

beep = PWM(Pin(15), freq=50000,duty=500)

s2 = [50000, 262, 294, 330, 349, 392, 220, 247]
s3 = [50000, 523, 587, 659, 698, 784, 440, 494]
s4 = [50000, 1044, 1175, 1318, 1397, 1568, 880, 988]

def play(level, power = 1, deltatime = 200):
    if power == 0:
        beep.freq(s2[level])
    elif power == 1:
        beep.freq(s3[level])
    elif power == 2:
        beep.freq(s4[level])
    time.sleep_ms(deltatime)
    beep.freq(50000)    

def plays(l):
    for i in l:
        if(len(i) == 3):
            play(i[0], i[1], i[2])
        else:
            play(i[0], i[1])

def test():
    plays([(3,2),(3,2),(0,2),(3,2),(0,2),(1,2),(3,2),(0,2),(5,2),(0,2,500)])
    plays([(1,2,600),(5,1,600),(3,1,600),(6,1,400),(7,1,400),(7,1),(6,1,400)])
    plays([(5,1),(3,2,400),(5,2),(6,2,400),(4,2),(5,2,400),(3,2,400),(1,2),(2,2),(7,1)])
    plays([(1,2,600),(5,1,600),(3,1,600),(6,1,400),(7,1,400),(7,1),(6,1,400)])
    plays([(5,1),(3,2,400),(5,2),(6,2,400),(4,2),(5,2,400),(3,2,400),(1,2),(2,2),(7,1)])
_thread.start_new_thread(test,())

diagram.json

{
  "version": 1,
  "author": "Anonymous maker",
  "editor": "wokwi",
  "parts": [
    {
      "type": "wokwi-esp32-devkit-v1",
      "id": "esp",
      "top": 0,
      "left": 0,
      "attrs": { "env": "micropython-20220618-v1.19.1" }
    },
    {
      "type": "wokwi-buzzer",
      "id": "bz1",
      "top": -9.57,
      "left": 174.83,
      "attrs": { "volume": "0.1" }
    }
  ],
  "connections": [
    [ "esp:TX0", "$serialMonitor:RX", "", [] ],
    [ "esp:RX0", "$serialMonitor:TX", "", [] ],
    [ "bz1:1", "esp:GND.1", "green", [ "v0" ] ],
    [ "bz1:2", "esp:D15", "red", [ "v0" ] ]
  ]
}

效果：

Wokwi Arduino and ESP32 Simulatorhttps://wokwi.com/projects/342321085191029332