ON/OFF LED menggunakan Android dan bluetooth module - Arduino project

Assalamualaikum wbt kepada pembaca blog saya yang saya hormati...

Bersyukur kepadaNya kerana hari ini masih diberi ruang untuk memberikan dan berkongsi lagi sedikit ilmu yang dipinjamkan kepada saya. Pada entri kali ini, saya ingin berkongsi cara untuk ON/OFF LED menggunakan bluetooth module Arduino yang dikawal menggunakan handphone Android anda.

Bahan yang diperlukan

1. Arduino board

2. Bluetooth module (HC-06 for arduino)

3. Breadboard

4. Jumper atau wire

5. Handphone Android

Software yang diperlukan

1. Arduino IDE

2. AMR Voice Arduino (untuk android phone) Boleh download di sini 

Bluetooth module HC-06

Step 1 (wiring bluetooth module)

VCC>>>>3.3v pin
GND>>>>GND pin
TXD>>>>RXD pin
RXD>>>>TXD pin

1. VCC>wire merah 2. GND>wire hitam 3. TXD> wire kuning 4. RXD>wire kelabu

Step 2 (wiring LED)

LED 1 To Pin 2
LED 2 To Pin 3
LED 3 To Pin 4
LED 4 To Pin 5
LED 5 To Pin 6

1. VCC>wire merah 2. GND>wire hitam 3. TXD> wire kuning 4. RXD>wire kelabu

Step 3 (ON/OFF LED guna Android)
1. Buka AMR Voice Arduino 
2. "Connect Robot" Password untuk bluetooth module HC-06 (1234)
3. Tunggu sehingga "Connected to BT-Module (HC-06)"
4. Tap on the mic icon dan cakapkan command anda (arahan)

AMR Voice interface

Coding Arduino

//Voice Activated Arduino (Bluetooth + Android)
//Feel free to modify it but remember to give credit

String voice;
int
led1 = 2, //Connect LED 1 To Pin #2
led2 = 3, //Connect LED 2 To Pin #3
led3 = 4, //Connect LED 3 To Pin #4
led4 = 5, //Connect LED 4 To Pin #5
led5 = 6; //Connect LED 5 To Pin #6
//--------------------------Call A Function-------------------------------// 
void allon(){
     digitalWrite(led1, HIGH);
     digitalWrite(led2, HIGH);
     digitalWrite(led3, HIGH);
     digitalWrite(led4, HIGH);
     digitalWrite(led5, HIGH);
}
void alloff(){
     digitalWrite(led1, LOW);
     digitalWrite(led2, LOW);
     digitalWrite(led3, LOW);
     digitalWrite(led4, LOW);
     digitalWrite(led5, LOW);
}
//-----------------------------------------------------------------------// 
void setup() {
  Serial.begin(9600);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
}
//-----------------------------------------------------------------------// 
void loop() {
  while (Serial.available()){  //Check if there is an available byte to read
  delay(10); //Delay added to make thing stable
  char c = Serial.read(); //Conduct a serial read
  if (c == '#') {break;} //Exit the loop when the # is detected after the word
  voice += c; //Shorthand for voice = voice + c
  } 
  if (voice.length() > 0) {
    Serial.println(voice);
//-----------------------------------------------------------------------//   
  //----------Control Multiple Pins/ LEDs----------// 
       if(voice == "*all on") {allon();}  //Turn Off All Pins (Call Function)
  else if(voice == "*all off"){alloff();} //Turn On  All Pins (Call Function)
 
  //----------Turn On One-By-One----------//
  else if(voice == "*tv on") {digitalWrite(led1, HIGH);}
  else if(voice == "*fan on") {digitalWrite(led2, HIGH);}
  else if(voice == "*computer on") {digitalWrite(led3, HIGH);}
  else if(voice == "*bedroom lights on") {digitalWrite(led4, HIGH);}
  else if(voice == "*bathroom lights on") {digitalWrite(led5, HIGH);}
  //----------Turn Off One-By-One----------//
  else if(voice == "*tv off") {digitalWrite(led1, LOW);}
  else if(voice == "*fan off") {digitalWrite(led2, LOW);}
  else if(voice == "*computer off") {digitalWrite(led3, LOW);}
  else if(voice == "*bedroom lights off") {digitalWrite(led4, LOW);}
  else if(voice == "*bathroom lights off") {digitalWrite(led5, LOW);}
//-----------------------------------------------------------------------// 
voice="";}} //Reset the variable after initiating 

Video

* respon LED saya lambat sedikit kerana saya menggunakan handphone Android lama yang agak lambat sedikit.