我有一个应用程序，除其他外，该应用程序应该在触发我的项目上的火灾警报时发出警报。该传感器是一个热敏电阻，当它获取的数据大于700时，它会激活指示灯闪烁和蜂鸣器。我正在使用蓝牙（HC-05）进行连接。我的应用程序中已经有一个应该独立工作的温度传感器，并且已经接收到Arduino的读数，因此我无法混合使用这些值（接收已使用的文本字节数）。我在想例如当LED闪烁时（表示已触发火灾警报），它将向应用程序发送某种信息，该信息通过扩展程序和内部通知程序通知我，而不会与其他模块发生冲突。
[code]
#include <SoftwareSerial.h>
SoftwareSerial BT(10, 11); //TX, RX respetively
float temp;
float seno;
int frequencia;
float temptermistor;
String state;// string to store incoming message from bluetooth
void setup() {
BT.begin(9600);// bluetooth serial communication will happen on pin 10 and 11
Serial.begin(9600); // serial com. to check the data on serial monitor
pinMode(A0, INPUT); //temperatura
pinMode(A1, INPUT); //termistor
pinMode(9, OUTPUT); //led alarme
pinMode(13, OUTPUT); //buzzer
}
void loop() {
temp = analogRead(A0);
delay(200);
temp = analogRead(A0);
temp = temp * 0.48828125;
temptermistor = analogRead(A1);
delay(10);
temptermistor = analogRead(A1);
delay(10);
Serial.println(temp);
BT.println(temp);
delay(250);
if (temptermistor >= 700)
{
digitalWrite(9, HIGH);
delay(50);
digitalWrite(9, LOW);
delay(50);
for(int x=0;x<180;x++){ //converte graus para rad. e obtém o valor do seno
seno=(sin(x*3.1416/180)); //gera uma frequência a partir do valor do seno
frequencia = 2000+(int(seno*1000));
tone(13,frequencia);
delay(2);
}
}
else
{
noTone(13);
}
while (BT.available()){ //Check if there is an available byte to read
delay(10); //Delay added to make thing stable
char c = BT.read(); //Conduct a serial read
state += c; //build the string- either "On" or "off"
}
if (state.length() > 0) {
if(state == "A")
{
digitalWrite(2, HIGH);
}
else if(state == "a")
{
digitalWrite(2, LOW);
}
if(state == "B")
{
digitalWrite(3, HIGH);
}
else if(state == "b")
{
digitalWrite(3, LOW);
}
if(state == "C")
{
digitalWrite(4, HIGH);
}
else if(state == "c")
{
digitalWrite(4, LOW);
}
if(state == "D")
{
digitalWrite(5, HIGH);
}
else if(state == "d")
{
digitalWrite(5, LOW);
}
if(state == "E")
{
digitalWrite(6, HIGH);
}
else if(state == "e")
{
digitalWrite(6, LOW);
}
if(state == "F")
{
digitalWrite(7, HIGH);
}
else if(state == "f")
{
digitalWrite(7, LOW);
}
if(state == "G")
{
digitalWrite(8, HIGH);
}
else if(state == "g")
{
digitalWrite(8, LOW);
}
if(state == "H")
{
digitalWrite(12, HIGH);
}
else if(state == "h")
{
digitalWrite(12, LOW);
}
state ="";}
}
[/code]