糖尿病康复 > 基于arduino的火焰报警蜂鸣器播放音乐（外部中断）实验

基于arduino的火焰报警蜂鸣器播放音乐（外部中断）实验

时间：2021-11-12 07:50:14

接线

按钮——————D3
火焰传感器———D2
蜂鸣器—————D7
led灯—————D13

编程思路及目的

利用火焰传感器检测火焰，然后播放音乐，如果中途有人按下按钮，则停止音乐。

主程序

#include "Arduino.h"int EXIT0 = 0; //定义按键开关调用外部中断0，默认接D2端口int zhuantai = 0; //设置状态位/*************蜂鸣器的音乐的**********************/int note[21][7] = {/*标准频率对照表*//*A-G大调降音*/{221, 248, 278, 294, 330, 371, 416}, //A大调{248, 278, 294, 330, 371, 416, 467}, //B大调{131, 147, 165, 175, 196, 221, 248}, //C大调{147, 165, 175, 196, 221, 248, 278}, //D大调{165, 175, 196, 221, 248, 278, 294}, //E大调{175, 196, 221, 248, 278, 294, 330}, //F大调{196, 221, 248, 278, 294, 330, 371}, //G大调/*A-G大调标准音*/{441, 495, 556, 624, 661, 742, 833},{495, 556, 624, 661, 742, 833, 935},{262, 294, 330, 350, 393, 441, 495},{294, 330, 350, 393, 441, 495, 556},{330, 350, 393, 441, 495, 556, 624},{350, 393, 441, 495, 556, 624, 661},{393, 441, 495, 556, 624, 661, 742},/*A-G大调升音*/{882, 990, 1112, 1178, 1322, 1484, 1665},{990, 1112, 1178, 1322, 1484, 1665, 1859},{525, 589, 661, 700, 786, 882, 990},{589, 661, 700, 786, 882, 990, 1112},{661, 700, 786, 882, 990, 1112, 1178},{700, 786, 882, 990, 1112, 1178, 1322},{786, 882, 990, 1112, 1178, 1322, 1484},};/*************以下变量依据实际修改****************/int buzzerPin = 7; /*蜂鸣器引脚位置*/int BPM = 400; /*一拍的时间*/int Scale = 4; /*设置大调，A-Z分别对应1-7*/float rate = 0.1;/*发声时间占一拍时间的比率*//***** 蜂鸣器唱歌类似调节编译可以手动选择音乐*****//*int pitch[] ={6, 7, 1, 7, 1, 3, 7, 3, 6, 5, 6, 1, 5, 3, 4, 3, 4, 1, 3, 1, 7, 4, 4, 7, 7, 6, 7, 1, 7, 1, 3, 7, 3, 3, 6, 5, 6, 1, 5, 3, 4, 1, 7, 1, 2, 3, 1, 1, 1, 7, 6, 7, 5, 6, 6, 6, 1, 2, 3, 2, 3, 5, 2, 2, 2, 5, 1, 7, 1, 2, 3, 3, 3, 3, 3, 6, 7, 1, 7, 1, 2, 1, 5, 5, 5, 4, 3, 2, 1, 3, 3, 3, 3, 6, 6, 5, 5, 3, 2, 1, 1, 1, 2, 1, 2, 5, 3, 3, 3, 3, 6, 6, 5, 5, 3, 2, 1, 1, 1, 2, 1, 2, 7, 6, 6, 6, 0,};int rise[] ={0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1,};float mlength[] ={0.500, 0.500, 1.500, 0.500, 1.000, 1.000, 3.000, 1.000, 0.500, 1.000, 1.000, 1.000, 3.000, 1.000, 1.500, 0.500, 0.500, 1.500, 3.000, 1.000, 1.500, 0.500, 0.500, 1.000, 3.000, 0.500, 0.500, 1.500, 0.500, 1.000, 1.000, 3.000, 0.500, 0.500, 1.500, 0.500, 1.000, 1.000, 3.000, 1.000, 1.000, 0.500, 1.500, 1.000, 1.000, 0.500, 0.500, 2.000, 0.500, 0.500, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 0.500, 0.500, 1.500, 0.500, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.500, 0.500, 1.000, 0.500, 0.500, 1.000, 1.000, 1.000, 1.000, 0.500, 0.500, 1.000, 0.500, 0.500, 1.000, 1.500, 0.500, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.500, 0.500, 1.500, 0.500, 0.500, 0.500, 1.000, 1.000, 1.000, 1.500, 0.500, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.500, 0.500, 1.500, 0.500, 0.500, 0.500, 1.000, 1.000, 1.000, 1.500, 0.500, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000,};*///两只老虎int pitch[] ={1, 2, 3, 1, 1, 2, 3, 1, 3, 4, 5, 3, 4, 5, 5, 6, 5, 4, 3, 1, 0, 0, 1, 2, 3, 1, 1, 2, 3, 1, 3, 4, 5, 3, 4, 5,};int rise[] ={1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,};float mlength[] ={1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 2.000, 1.000, 1.000, 2.000, 0.500, 0.500, 0.500, 0.500, 1.000, 1.000, 1.000, 3.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 1.000, 2.000, 1.000, 1.000, 2.000,};/*追光者*//*int pitch[] ={0, 0, 0, 0, 6, 7, 1, 7, 3, 3, 5, 5, 1, 2, 1, 2, 2, 5, 3, 6, 7, 1, 7, 3, 3, 5, 1, 5, 1, 2, 3, 1, 7, 6, 7, 1, 1, 3, 2, 7, 6, 5, 6, 7, 7, 2, 1, 0, 1, 7, 1, 0, 6, 6, 7, 1, 7, 6, 5, 0, 1, 2,};int rise[] ={1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 2, 2,};*///因为arduino引脚少就少用条件编译了void setup() {Serial.begin(9600); //串口调试，9600波特率attachInterrupt(digitalPinToInterrupt(2), stateChange, RISING); //触发中断进入函数stateChange();RISING(上升的)attachInterrupt(digitalPinToInterrupt(3), wbzd, FALLING); //触发中断进入函数wbzd();FALLING(下降沿的)pinMode(3, INPUT); //中断引脚pinMode(2, INPUT); //中断引脚pinMode(6, INPUT);//历史预留pinMode(13, OUTPUT); //灯光引脚pinMode(7, OUTPUT); //蜂鸣器输出digitalWrite(7, 1); //让蜂鸣器别吵}void loop() {// put your main code here, to run repeatedly:// Serial.println(digitalRead(6));if (zhuantai == 1) {digitalWrite(13, 1);music();} else {digitalWrite(13, 0);digitalWrite(7, 1);}}void stateChange() //中断回调函数{delay(50);if (digitalRead(2) == 1) {Serial.print("D2:");Serial.println(digitalRead(2));zhuantai = 1;}}//中断回调函数2void wbzd() //外部中断2，3号引脚{if (digitalRead(3) == 0){delay(50);if (digitalRead(3) == 0){zhuantai = 0;Serial.print("D3:");Serial.println(digitalRead(3));}}}void music() //播放音乐涉及到音阶和音调{int i;int Frequency;int toneTime, notoneTime;for (i = 0; i < sizeof(note) / sizeof(int); i++){if (pitch[i] != 0){Frequency = note[Scale + rise[i] * 7 ][pitch[i]];toneTime = mlength[i] * BPM * rate;notoneTime = mlength[i] * BPM - toneTime;tone(buzzerPin, Frequency);delay(toneTime);delay(notoneTime);noTone(buzzerPin);if (zhuantai == 0)return 0;}else {delay(BPM * mlength[i]);if (zhuantai == 0)return 0;}}if (zhuantai == 0)return 0;}