Arduino Bluetooth Control LED
Arduino Project which you want to control LED via Bluetooth.
Hardware
1. Arduino UNO Board or compatible Board
2. Serial Bluetooth Module. ( HC-06 )
3. LED with Resistor 300 - 1K ohm x 8
Wiring Diagram
Output LED 1 to Pin 2 ( Arduino Board )
Output LED 2 to Pin 3
Output LED 3 to Pin 4
Output LED 4 to Pin 5
Output LED 5 to Pin 6
Output LED 6 to Pin 7
Output LED 7 to Pin 8
Output LED 8 to Pin 9
Bluetooth Module Tx to Pin 0
Bluetooth Module Rx to Pin 1
| #define LED_PIN1 2 // | |
| #define LED_PIN2 3 | |
| #define LED_PIN3 4 | |
| #define LED_PIN4 5 | |
| #define LED_PIN5 6 | |
| #define LED_PIN6 7 | |
| #define LED_PIN7 8 | |
| #define LED_PIN8 9 | |
| int inByte1 = 0; // incoming serial byte | |
| int inByte2 = 0; | |
| byte bit0 = B00000001; // 1 | |
| byte bit1 = B00000010; // 2 | |
| byte bit2 = B00000100; // 4 | |
| byte bit3 = B00001000; // 8 | |
| byte bit4 = B00010000; // 16 | |
| byte bit5 = B00100000; // 32 | |
| byte bit6 = B01000000; // 64 | |
| byte bit7 = B10000000; // 128 | |
| byte bitDelay = 100; | |
| boolean status_unlock; | |
| boolean status_bluetooth; | |
| long interval = 100; // interval at which to blink (milliseconds) | |
| long previousMillis = 0; // will store last time LED was updat | |
| int minite,sec; | |
| void setup() | |
| { | |
| // start serial port at 9600 bps: | |
| Serial.begin(9600); | |
| 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 on LED | |
| digitalWrite(LED_PIN2, LOW); // switch on LED | |
| digitalWrite(LED_PIN3, LOW); // switch on LED | |
| digitalWrite(LED_PIN4, LOW); // switch on LED | |
| digitalWrite(LED_PIN5, LOW); // switch on LED | |
| digitalWrite(LED_PIN6, LOW); // switch on LED | |
| digitalWrite(LED_PIN7, LOW); // switch on LED | |
| digitalWrite(LED_PIN8, LOW); // switch on LED | |
| Serial.print("Arduino control LEDs Start"); | |
| Serial.print('\n'); | |
| } | |
| void loop() | |
| { | |
| while (Serial.available() > 0) { | |
| inByte1 = Serial.parseInt(); // get incoming byte: | |
| char c = Serial.read(); | |
| if ( (c == '\n') || (c == '\r')) { | |
| Serial.println(" "); | |
| if (inByte1 & bit0){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN1,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN1,LOW); // send 0 | |
| } | |
| if (inByte1 & bit1){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN2,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN2,LOW); // send 0 | |
| } | |
| if (inByte1 & bit2){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN3,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN3,LOW); // send 0 | |
| } | |
| if (inByte1 & bit3){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN4,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN4,LOW); // send 0 | |
| } | |
| if (inByte1 & bit4){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN5,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN5,LOW); // send 0 | |
| } | |
| if (inByte1 & bit5){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN6,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN6,LOW); // send 0 | |
| } | |
| if (inByte1 & bit6){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN7,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN7,LOW); // send 0 | |
| } | |
| if (inByte1 & bit7){ // if bitwise AND resolves to true | |
| digitalWrite(LED_PIN8,HIGH); // send 1 | |
| } | |
| else{ // if bitwise and resolves to false | |
| digitalWrite(LED_PIN8,LOW); // send 0 | |
| } | |
| Serial.print(inByte1); | |
| Serial.print(" OK"); | |
| } | |
| //delay(inByte2 * bitDelay); //delay | |
| //Serial.println("OK"); | |
| } // if(Serial | |
| } //Loop | |
