1 电路连接
|
蜂鸣器 |
ESP32 |
|
正极 |
D33 |
|
负极 |
GND |
2 实物连接图
3 程序如下，编译器visual studio code main. Cpp
#include <Arduino.h>
#define buz 33
typedef struct data {
note_t note;//音符
uint8_t level;//音阶
uint16_t interval;// 节拍
} note;
note tones[]={
{NOTE_C,4,500},// NOTE_C 是1
{NOTE_C,4,500},
{NOTE_G,4,500},
{NOTE_G,4,500},
{NOTE_A,4,500},
{NOTE_A,4,500},
{NOTE_G,4,1000},
{NOTE_F,4,500},
{NOTE_F,4,500},
{NOTE_E,4,500},
{NOTE_E,4,500},
{NOTE_D,4,500},
{NOTE_D,4,500},
{NOTE_C,4,1000}
};
byte toneSize=sizeof(tones)/sizeof(note);
void setup() {
// put your setup code here, to run once:
ledcSetup(0,20000,10);// initialize pwm port,0 port, total 16 port
ledcAttachPin(buz,0);
}
void loop() {
// put your main code here, to run repeatedly:
for(int i=0;i<toneSize;i ){
ledcWriteNote(0,tones[i].note,tones[i].level);
delay(tones[i].interval);
}
}
4 效果确认
ESP32使用蜂鸣器播放小星星歌曲 - 西瓜视频 (ixigua.com)
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