The purpose of this project is to demonstrate the basic principles of external device controlling using your android phone.
The basic principle in this project is that by interfacing an Android phone with a Arduino Board we can turn "off" or "on" some relays.
Components Required
Source Code For Arduino Board
The basic principle in this project is that by interfacing an Android phone with a Arduino Board we can turn "off" or "on" some relays.
- Serial Port Bluetooth Module( TTL )
- Arduino Microcontroller Board (ET-BASEAVR EASY328 ) Arduino Compatible Board
- 8 channel Output Relay Board
Source Code For Arduino Board
For Arduino Microcontroller Board Source code
#define LED_PIN1 4
#define LED_PIN2 5
#define LED_PIN3 6
#define LED_PIN4 7
#define LED_PIN5 8
#define LED_PIN6 9
#define LED_PIN7 10
#define LED_PIN8 11
int firstSensor = 0; // first analog sensor
int secondSensor = 0; // second analog sensor
int thirdSensor = 0; // digital sensor
int inByte = 0; // incoming serial byte
boolean status_unlock;
boolean status_bluetooth;
long interval = 1000; // interval at which to blink (milliseconds)
long previousMillis = 0; // will store last time LED was update
int minite,sec;
void setup()
{
// start serial port at 9600 bps:
Serial.begin(9600);
//pinMode(2, INPUT); // digital sensor is on digital pin 2
//establishContact(); // send a byte to establish contact until receiver responds
pinMode(LED_PIN1, OUTPUT);
pinMode(LED_PIN2, OUTPUT);
pinMode(LED_PIN3, OUTPUT);
pinMode(LED_PIN4, OUTPUT);
pinMode(LED_PIN5, OUTPUT);
pinMode(LED_PIN6, OUTPUT);
pinMode(LED_PIN7, OUTPUT);
pinMode(LED_PIN8, OUTPUT);
digitalWrite(LED_PIN1, LOW); // switch off LED
digitalWrite(LED_PIN2, LOW); // switch off LED
digitalWrite(LED_PIN3, LOW); // switch off LED
digitalWrite(LED_PIN4, LOW); // switch off LED
digitalWrite(LED_PIN5, LOW); // switch off LED
digitalWrite(LED_PIN6, LOW); // switch off LED
digitalWrite(LED_PIN7, LOW); // switch off LED
digitalWrite(LED_PIN8, LOW); // switch off LED
status_bluetooth = true;
status_unlock = false;
sec = 0;
}
void loop()
{
if (Serial.available() > 0) {
inByte = Serial.read(); // get incoming byte:
if(inByte == 'A'){
digitalWrite(LED_PIN1, HIGH); // switch on LED
Serial.print('A', BYTE); // send a char
delay(800);
digitalWrite(LED_PIN1, LOW); // switch off LED
status_unlock = false;
inByte = 0;
}
if(inByte == 'a'){
digitalWrite(LED_PIN2, HIGH); // switch on LED
Serial.print('a', BYTE); // send a char
delay(800);
digitalWrite(LED_PIN2, LOW); // switch off LED
status_unlock = true;
sec = 0;
inByte = 0;
}
if(inByte == 'B'){
digitalWrite(LED_PIN3, HIGH); // switch on LED
Serial.print('B', BYTE); // send a char
inByte = 0;
}
if(inByte == 'b'){
digitalWrite(LED_PIN3, LOW); // switch off LED
Serial.print('b', BYTE); // send a char
inByte = 0;
}
if(inByte == 'C'){
digitalWrite(LED_PIN4, HIGH); // switch on LED
Serial.print('C', BYTE); // send a char
inByte = 0;
}
if(inByte == 'c'){
digitalWrite(LED_PIN4, LOW); // switch off LED
Serial.print('c', BYTE); // send a char
inByte = 0;
}
if(inByte == 'D'){
digitalWrite(LED_PIN5, HIGH); // switch on LED
Serial.print('D', BYTE); // send a char
inByte = 0;
}
if(inByte == 'd'){
digitalWrite(LED_PIN5, LOW); // switch off LED
Serial.print('d', BYTE); // send a char
inByte = 0;
}
if(inByte == 'E'){
digitalWrite(LED_PIN6, HIGH); // switch on LED
Serial.print('E', BYTE); // send a char
inByte = 0;
}
if(inByte == 'e'){
digitalWrite(LED_PIN6, LOW); // switch off LED
Serial.print('e', BYTE); // send a char
inByte = 0;
}
if(inByte == 'F'){
digitalWrite(LED_PIN7, HIGH); // switch on LED
Serial.print('F', BYTE); // send a char
inByte = 0;
}
if(inByte == 'f'){
digitalWrite(LED_PIN7, LOW); // switch off LED
Serial.print('f', BYTE); // send a char
inByte = 0;
}
if(inByte == 'G'){
digitalWrite(LED_PIN8, HIGH); // switch on LED
Serial.print('G', BYTE); // send a char
inByte = 0;
}
if(inByte == 'g'){
digitalWrite(LED_PIN8, LOW); // switch off LED
Serial.print('g', BYTE); // send a char
inByte = 0;
}
if(inByte == 'S'){
Serial.print('S', BYTE); // send a char
status_bluetooth = true;
sec = 0;
}
} // if(Serial
/*
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > interval) {
previousMillis = currentMillis; // save the last time you blinked the LED
sec++;
if(status_unlock==true){
if(sec== 11){
digitalWrite(LED_PIN1, HIGH); // switch on LED
delay(800);
digitalWrite(LED_PIN1, LOW); // switch off LED
status_unlock = false;
sec = 0;
}
}
else sec = 0;
}
*/
} //Loop
void establishContact() {
while (Serial.available() <= 0) {
Serial.print('.', BYTE); // send a capital A
delay(500);
}
}
#define LED_PIN1 4
#define LED_PIN2 5
#define LED_PIN3 6
#define LED_PIN4 7
#define LED_PIN5 8
#define LED_PIN6 9
#define LED_PIN7 10
#define LED_PIN8 11
int firstSensor = 0; // first analog sensor
int secondSensor = 0; // second analog sensor
int thirdSensor = 0; // digital sensor
int inByte = 0; // incoming serial byte
boolean status_unlock;
boolean status_bluetooth;
long interval = 1000; // interval at which to blink (milliseconds)
long previousMillis = 0; // will store last time LED was update
int minite,sec;
void setup()
{
// start serial port at 9600 bps:
Serial.begin(9600);
//pinMode(2, INPUT); // digital sensor is on digital pin 2
//establishContact(); // send a byte to establish contact until receiver responds
pinMode(LED_PIN1, OUTPUT);
pinMode(LED_PIN2, OUTPUT);
pinMode(LED_PIN3, OUTPUT);
pinMode(LED_PIN4, OUTPUT);
pinMode(LED_PIN5, OUTPUT);
pinMode(LED_PIN6, OUTPUT);
pinMode(LED_PIN7, OUTPUT);
pinMode(LED_PIN8, OUTPUT);
digitalWrite(LED_PIN1, LOW); // switch off LED
digitalWrite(LED_PIN2, LOW); // switch off LED
digitalWrite(LED_PIN3, LOW); // switch off LED
digitalWrite(LED_PIN4, LOW); // switch off LED
digitalWrite(LED_PIN5, LOW); // switch off LED
digitalWrite(LED_PIN6, LOW); // switch off LED
digitalWrite(LED_PIN7, LOW); // switch off LED
digitalWrite(LED_PIN8, LOW); // switch off LED
status_bluetooth = true;
status_unlock = false;
sec = 0;
}
void loop()
{
if (Serial.available() > 0) {
inByte = Serial.read(); // get incoming byte:
if(inByte == 'A'){
digitalWrite(LED_PIN1, HIGH); // switch on LED
Serial.print('A', BYTE); // send a char
delay(800);
digitalWrite(LED_PIN1, LOW); // switch off LED
status_unlock = false;
inByte = 0;
}
if(inByte == 'a'){
digitalWrite(LED_PIN2, HIGH); // switch on LED
Serial.print('a', BYTE); // send a char
delay(800);
digitalWrite(LED_PIN2, LOW); // switch off LED
status_unlock = true;
sec = 0;
inByte = 0;
}
if(inByte == 'B'){
digitalWrite(LED_PIN3, HIGH); // switch on LED
Serial.print('B', BYTE); // send a char
inByte = 0;
}
if(inByte == 'b'){
digitalWrite(LED_PIN3, LOW); // switch off LED
Serial.print('b', BYTE); // send a char
inByte = 0;
}
if(inByte == 'C'){
digitalWrite(LED_PIN4, HIGH); // switch on LED
Serial.print('C', BYTE); // send a char
inByte = 0;
}
if(inByte == 'c'){
digitalWrite(LED_PIN4, LOW); // switch off LED
Serial.print('c', BYTE); // send a char
inByte = 0;
}
if(inByte == 'D'){
digitalWrite(LED_PIN5, HIGH); // switch on LED
Serial.print('D', BYTE); // send a char
inByte = 0;
}
if(inByte == 'd'){
digitalWrite(LED_PIN5, LOW); // switch off LED
Serial.print('d', BYTE); // send a char
inByte = 0;
}
if(inByte == 'E'){
digitalWrite(LED_PIN6, HIGH); // switch on LED
Serial.print('E', BYTE); // send a char
inByte = 0;
}
if(inByte == 'e'){
digitalWrite(LED_PIN6, LOW); // switch off LED
Serial.print('e', BYTE); // send a char
inByte = 0;
}
if(inByte == 'F'){
digitalWrite(LED_PIN7, HIGH); // switch on LED
Serial.print('F', BYTE); // send a char
inByte = 0;
}
if(inByte == 'f'){
digitalWrite(LED_PIN7, LOW); // switch off LED
Serial.print('f', BYTE); // send a char
inByte = 0;
}
if(inByte == 'G'){
digitalWrite(LED_PIN8, HIGH); // switch on LED
Serial.print('G', BYTE); // send a char
inByte = 0;
}
if(inByte == 'g'){
digitalWrite(LED_PIN8, LOW); // switch off LED
Serial.print('g', BYTE); // send a char
inByte = 0;
}
if(inByte == 'S'){
Serial.print('S', BYTE); // send a char
status_bluetooth = true;
sec = 0;
}
} // if(Serial
/*
unsigned long currentMillis = millis();
if(currentMillis - previousMillis > interval) {
previousMillis = currentMillis; // save the last time you blinked the LED
sec++;
if(status_unlock==true){
if(sec== 11){
digitalWrite(LED_PIN1, HIGH); // switch on LED
delay(800);
digitalWrite(LED_PIN1, LOW); // switch off LED
status_unlock = false;
sec = 0;
}
}
else sec = 0;
}
*/
} //Loop
void establishContact() {
while (Serial.available() <= 0) {
Serial.print('.', BYTE); // send a capital A
delay(500);
}
}
ANDROID BLUETOOTH CONTROLLED DEVICE
Android Bluetooth control application helps to control up to 8 external electrical or electronic devices. Use Android Bluetooth mobile device to remote control your device with Bluetooth Receiver hardware Device.
Main features of the program
-
It can control up to 8 devices.
These devices can be turned off /on by setting Timer to ON / OFF the device and show the time.(the timer can be set to 1 minute, 15 minutes, 30 minutes, 1 hour, 2 hours, 4 hours).
Use with Receiving device (Bluetooth Receiver Hardware Device see below). - Design for the Android version 4 and a screen resolution of 480 x 800 (WVGA).
- Freeware with AD (free software)
