Introduction - If you have any usage issues, please Google them yourself
In a previous article, I ve shown that i s possible to connect a bluetooth module to an ATMega micro controller via the UART serial interface and even further, discover it using a bluetooth enabled computer or smartphone.
The 9600bps serial link established, can than be used to exchange data.
Using an Android phone for this purpose is no exception. I will use it to control the Perseus 3 robot platform. What I m doing is directly interfacing the Android with the ATMega microcontroller via the serial bluetooth link. So you can use this technology for other purposes than robots, since the ATMega has a large range of possible uses: control the light in your home using the Android phone, read various sensors and gather the data on the Android, and more.