ARDUINO BLUETOOTH BASIC TUTORIAL

ARDUINO BLUETOOTH BASIC TUTORIAL

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Introduction: Arduino Bluetooth Basic Tutorial

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By Mayoogh GirishMore
Ever thought of controlling any electronic devices with your smart phone ?Controlling your robot or any other devices with your smartphone will be really cool. Here is is a simple and basic tutorial for interfacing Bluetooth with arduino

Step 1: Things You Need

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Hardware

Software

Step 2: Watch How Does It Works ?

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Watch the video tutorial

Step 3: Let’s Start Building

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The circuit is so simple and small , there is only few connection to be made
Arduino Pins___________Bluetooth Module Pins
RX (Pin 0)___________________TX
TX (Pin 1)___________________RX
5V_________________________VCC
GND_______________________GND
Connect a LED negative to GND of arduino and positive to pin 13 with a resistance valued between 220Ω – 1KΩ. And your done with the circuit
Note : Don’t Connect RX to RX and TX to TX of Bluetooth to arduinoyou will receive no data , Here TX means Transmit and RX means Receive

Step 4: Upload the Code

/* Bluetooh Basic: LED ON OFF - Avishkar
* Coder - Mayoogh Girish
* Website - http://bit.do/Avishkar
* Download the App : https://github.com/Mayoogh/Arduino-Bluetooth-Basic
* This program lets you to control a LED on pin 13 of arduino using a bluetooth module
*/
char data = 0; //Variable for storing received data
void setup()
{
    Serial.begin(9600); //Sets the baud for serial data transmission                               
    pinMode(13, OUTPUT); //Sets digital pin 13 as output pin
}
void loop()
{
   if(Serial.available() > 0)  // Send data only when you receive data:
   {
      data = Serial.read();        //Read the  incoming  data and store it into variable data
      Serial.print(data);          //Print Value inside data in Serial monitor
      Serial.print("\n");          //New line
      if(data == '1')              // Checks whether value of data is equal to 1
         digitalWrite(13, HIGH);   //If value is 1 then LED turns ON
      else if(data == '0')         //  Checks  whether value of data is equal to 0
         digitalWrite(13, LOW);    //If value is 0 then LED turns OFF
   }
}

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