Additionally, paste this code immediately after the opening tag:

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Bluetooth Control for Arduino

Arduino Bluetooth Relay 4CH App is android application which is used to control 4 channel relay module via Blu...

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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);
}

}

Last update

March 14, 2020

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