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Arduino Bluetooth Relay 4CH App is android application which is used to control 4 channel relay module via Bluetooth with Bluetooth serial communication module support HC-05, HC-06, or HC-07, Using Arduino or AVR

i am test with arduino UNO and serial commnunication library to connected RX pin 10 and TX pin 11.

you can use arduino uno or arduino leonardo etc...

Fitur App:

-control 4 channel on/off ralay

-control All channel ON

-control All channel OFF

-download file Program Arduino_Bluetooth_Ralay_4ch.ino

-download file Tutorial PDF with schemmatic

Download File:

-arduino project ZIP : https://goo.gl/Vq1n9D

-tutorial & schematic wiring PDF : https://goo.gl/b2UVY1

or you can

Copy program here to Arduino IDE

/*

Relay IN1 connected to PinOut 2 Arduino

Relay IN2 connected to PinOut 3 Arduino

Relay IN3 connected to PinOut 4 Arduino

Relay IN4 connected to PinOut 5 Arduino

--->you can connected to relay modul 4 channel

Serial data sending from Arduino Bluetooth Relay 4CH.apk

data '1'-'4' to on is Ralay CH 1-4

data 'A'-'D' to off is Ralay CH 1-4

data '9' to on ALL CH 1-4

data 'I' to off ALL CH 1-4

*/

#include <SoftwareSerial.h>

SoftwareSerial mySerial(10, 11); //Pin10 RX , Pin 11 TX connected to--> Bluetooth TX,RX

#define relay1 2

#define relay2 3

#define relay3 4

#define relay4 5

char val;

void setup() {

 pinMode(relay1,OUTPUT);

 pinMode(relay2,OUTPUT);

 pinMode(relay3,OUTPUT);

 pinMode(relay4,OUTPUT);

 digitalWrite(relay1,HIGH);

 digitalWrite(relay2,HIGH);

 digitalWrite(relay3,HIGH);

 digitalWrite(relay4,HIGH);

 mySerial.begin(9600);

 Serial.begin(9600);

}

void loop() {

//cek data serial from bluetooth android App

if( mySerial.available() >0 ) {

 val = mySerial.read();

 Serial.println(val); 

}

//Relay is on

 if( val == '1' ) {

 digitalWrite(relay1,LOW); }

 else if( val == '2' ) {

 digitalWrite(relay2,LOW); }

 else if( val == '3' ) {

 digitalWrite(relay3,LOW); }

 else if( val == '4' ) {

 digitalWrite(relay4,LOW); }

 //relay all on

 else if( val == '9' ) {

 digitalWrite(relay1,LOW);

 digitalWrite(relay2,LOW);

 digitalWrite(relay3,LOW);

 digitalWrite(relay4,LOW);

 }

 //relay is off

 else if( val == 'A' ) {

 digitalWrite(relay1,HIGH); }

 else if( val == 'B' ) {

 digitalWrite(relay2,HIGH); }

 else if( val == 'C' ) {

 digitalWrite(relay3,HIGH); }

 else if( val == 'D' ) {

 digitalWrite(relay4,HIGH); }

 //relay all off 

 else if( val == 'I' ) {

 digitalWrite(relay1,HIGH);

 digitalWrite(relay2,HIGH);

 digitalWrite(relay3,HIGH);

 digitalWrite(relay4,HIGH);

 }

 

}

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