实现功能:当人体红外感应到人时,蜂鸣器报警,继电器模块闭合;反之,继电器模块断开。
模块连接:
Arduino人体红外和继电器连接同Arduino人体红外感应+继电器.
蜂鸣器连接:
实物图连接:
代码:
/*功能:利用人体红外模块检测一定范围内的人类运动状态,如果检测到有输出则发出警报同时控制继电器工作*/#include "pitches.h" //乐曲中的音符int Sensor_pin = A5;int pinRelay = 8;int Buzzerpin = 7;int melody[] = {NOTE_C4, NOTE_G3,NOTE_G3, NOTE_A3, NOTE_G3,0, NOTE_B3, NOTE_C4};/*音符持续时间:4=四分音符,8=八分音符,等等(note durations: 4 = quarter note, 8 = eighth note, etc.:)*/int noteDurations[] = {4, 8, 8, 4,4,4,4,4 };void RelayWork() //继电器工作{digitalWrite(pinRelay, HIGH);//输出HIGH电平,继电器模块闭合delay(3000);}void Alarm() //蜂鸣器发出警报{//顺序加载乐曲中的音符for (int thisNote = 0; thisNote < 8; thisNote++) {/* 用1s为基准计算音符持续时间 e.g. 四分音符(quarter note)= 1000 / 4, 八分音符(eighth note)= 1000/8, etc.*/int noteDuration = 1000/noteDurations[thisNote];tone(7, melody[thisNote],noteDuration);//设置一个最小的时间间隔来区分音符//一般正常音符的1.3倍效果较好int pauseBetweenNotes = noteDuration * 1.30;delay(pauseBetweenNotes);//停止播放音乐:noTone(7);}}void setup(){pinMode(Sensor_pin,INPUT); //设置人体红外接口为输入状态pinMode(pinRelay, OUTPUT); //设置pinRelay脚为输出状态pinMode(Buzzerpin,OUTPUT); //设置蜂鸣器接口为输出状态Serial.begin(9600);}void loop(){int val=digitalRead(Sensor_pin); //定义参数存储人体红外传感器读到的状态Serial.println(val); //串口显示if(val == 1) //如果检测到有人类运动(在检测范围内),继电器模块闭合,同时发出警报{Alarm();RelayWork();}else{digitalWrite(pinRelay, LOW);//输出LOW电平,继电器模块断开delay(4000);}//delay(100); //延时100毫秒}
pitches.h代码:
/************************************************** Public Constants*************************************************/#define NOTE_B0 31#define NOTE_C1 33#define NOTE_CS1 35#define NOTE_D1 37#define NOTE_DS1 39#define NOTE_E1 41#define NOTE_F1 44#define NOTE_FS1 46#define NOTE_G1 49#define NOTE_GS1 52#define NOTE_A1 55#define NOTE_AS1 58#define NOTE_B1 62#define NOTE_C2 65#define NOTE_CS2 69#define NOTE_D2 73#define NOTE_DS2 78#define NOTE_E2 82#define NOTE_F2 87#define NOTE_FS2 93#define NOTE_G2 98#define NOTE_GS2 104#define NOTE_A2 110#define NOTE_AS2 117#define NOTE_B2 123#define NOTE_C3 131#define NOTE_CS3 139#define NOTE_D3 147#define NOTE_DS3 156#define NOTE_E3 165#define NOTE_F3 175#define NOTE_FS3 185#define NOTE_G3 196#define NOTE_GS3 208#define NOTE_A3 220#define NOTE_AS3 233#define NOTE_B3 247#define NOTE_C4 262#define NOTE_CS4 277#define NOTE_D4 294#define NOTE_DS4 311#define NOTE_E4 330#define NOTE_F4 349#define NOTE_FS4 370#define NOTE_G4 392#define NOTE_GS4 415#define NOTE_A4 440#define NOTE_AS4 466#define NOTE_B4 494#define NOTE_C5 523#define NOTE_CS5 554#define NOTE_D5 587#define NOTE_DS5 622#define NOTE_E5 659#define NOTE_F5 698#define NOTE_FS5 740#define NOTE_G5 784#define NOTE_GS5 831#define NOTE_A5 880#define NOTE_AS5 932#define NOTE_B5 988#define NOTE_C6 1047#define NOTE_CS6 1109#define NOTE_D6 1175#define NOTE_DS6 1245#define NOTE_E6 1319#define NOTE_F6 1397#define NOTE_FS6 1480#define NOTE_G6 1568#define NOTE_GS6 1661#define NOTE_A6 1760#define NOTE_AS6 1865#define NOTE_B6 1976#define NOTE_C7 2093#define NOTE_CS7 2217#define NOTE_D7 2349#define NOTE_DS7 2489#define NOTE_E7 2637#define NOTE_F7 2794#define NOTE_FS7 2960#define NOTE_G7 3136#define NOTE_GS7 3322#define NOTE_A7 3520#define NOTE_AS7 3729#define NOTE_B7 3951#define NOTE_C8 4186#define NOTE_CS8 4435#define NOTE_D8 4699#define NOTE_DS8 4978