Hello Every body , This is my first artical on Instructable.com , I'm so happy for that , and I will start by How to connect arduino with bluetooth , I suffered a lot of problems when I try to connect it as the website and instructable artical did , So i decided To share my experience with You
The bluetooth module I will use today is HC-05 which is so familiar and cheap ,
Most tutorial on The website Connect the bluetooth with default Rx and Tx on the arduino Board , I faced a lot of problem and bluetooth didn't work will .
But arduino support something Called Software Serial , which allow You to change any arduino board pin to serial pin
so After reading this article you will be able to:
1) Connect arduino Board with PC By Bluetooth , to send and receive data .
2)Connect arduino Board with Any android device .
so you can send your information , Like Sensors reading , from arduino to PC Or android device , and you can build your Home automation system by bluetooth , and controlling your robot wirelessly
Step 1: Material and connection
1) Arduino Board " I used Arduino Uno ".
2) Bluetooth module HC-05.
4)Bread Board .
5)Battery 9V "Optional".
The connction between Arduino and bluetooth is like the schematic above