Question How to add codes for triping the whole blootooth control electrical circuit when blootooth is out of range?

Himanshu Panchal

Commendable
May 5, 2017
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I made a Home automation system in which I used Arduino UNO R3, Bluetooth HC05, and 4 channel relay module in which each relay has its own load. I made a app by using MIT App Inventor to control 4 loads of my circuit via Bluetooth.

The problem i have is this that is i am in 10 m of range i can make Load power ON or OFF but if I suppose to power on my load and i get out of range from the circuit the load remains to be powered on.

I want to know that what can i add to my Programed code so when i get out of range from my circuit it automatically turn off the load connected to 4 of the relay.

This was the program which i compiled to Arduino
int lamp1=2;
int lamp2=3;
int lamp3=4;
int music=5;
int pc=6;
int mobile=7;
int fan=8;
int socket=9;

int Received=0;
int lamp1_state=0;
int lamp2_state=0;
int lamp3_state=0;
int music_state=0;
int pc_state=0;
int mobile_state=0;
int fan_state=0;
int socket_state=0;

void setup(){

Serial.begin(9600);
pinMode(lamp1,OUTPUT);
pinMode(lamp2,OUTPUT);
pinMode(lamp3,OUTPUT);
pinMode(music,OUTPUT);
pinMode(pc,OUTPUT);
pinMode(mobile,OUTPUT);
pinMode(fan,OUTPUT);
pinMode(socket,OUTPUT);

}

void loop(){

if(Serial.available()>0)
{
Received = Serial.read();

}

if (lamp1_state == 0 && Received == '1')
{
digitalWrite(lamp1,HIGH);
lamp1_state=1;
Received=0;
}
if (lamp1_state ==1 && Received == '1')
{
digitalWrite(lamp1,LOW);
lamp1_state=0;
Received=0;
}


if (lamp2_state == 0 && Received == '2')
{
digitalWrite(lamp2,HIGH);
lamp2_state=1;
Received=0;
}
if (lamp2_state ==1 && Received == '2')
{
digitalWrite(lamp2,LOW);
lamp2_state=0;
Received=0;
}

if (lamp3_state == 0 && Received == '3')
{
digitalWrite(lamp3,HIGH);
lamp3_state=1;
Received=0;
}
if (lamp3_state ==1 && Received == '3')
{
digitalWrite(lamp3,LOW);
lamp3_state=0;
Received=0;
}

if (music_state == 0 && Received == '4')
{
digitalWrite(music,HIGH);
music_state=1;
Received=0;
}
if (music_state ==1 && Received == '4')
{
digitalWrite(music,LOW);
music_state=0;
Received=0;
}

if (pc_state == 0 && Received == '5')
{
digitalWrite(pc,HIGH);
pc_state=1;
Received=0;
}
if (pc_state ==1 && Received == '5')
{
digitalWrite(pc,LOW);
pc_state=0;
Received=0;
}

if (mobile_state == 0 && Received == '6')
{
digitalWrite(mobile,HIGH);
mobile_state=1;
Received=0;
}
if (mobile_state ==1 && Received == '6')
{
digitalWrite(mobile,LOW);
mobile_state=0;
Received=0;
}

if (fan_state == 0 && Received == '7')
{
digitalWrite(fan,HIGH);
fan_state=1;
Received=0;
}
if (fan_state ==1 && Received == '7')
{
digitalWrite(fan,LOW);
fan_state=0;
Received=0;
}

if (socket_state == 0 && Received == '8')
{
digitalWrite(socket,HIGH);
socket_state=1;
Received=0;
}
if (socket_state ==1 && Received == '8')
{
digitalWrite(socket,LOW);
socket_state=0;
Received=0;
}

}
 

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