The BC04 bluetooth module allowed me to control my mobile robot using my Android phones Bluetooth. In case you’re clueless about the BC04 module, refer to my earlier blog post
I wanted to control an Arduino UNO board using my android phones Bluetooth. The UNO board doesn’t have Bluetooth and so requires an external Bluetooth module. I found a small Bluetooth module (BOLUTEK BLK-MD-BC04-B) at digibay.in and purchased it for experimenting.
The BC04 module can be interfaced to your designs using UART. Before pairing with a device, the module enters into a command mode and can be configured using AT commands. Upon pairing with a device the module enters into a communication mode.
Documentation of the module:
BLK-MD-BC04-B Bluetooth Module Specification
BOLUTEK BLK-MD-BC04-B Bluetooth Module AT Commands
Testing the BC04 Bluetooth module:
Since I bought only one module I wanted to be extra careful, and so built a PCB for the module. The design is just an extension of the Application Circuit Diagram from the module specification file.
Ideas are fragile. Chances are you’ll lose them if you don’t note them down.
Here’s some advice by Phil Cooke
When I bought an Android tablet, I was frustrated because I couldn’t find a neat book like case. So I set forth to build my own.
It didn’t strike me to make a tutorial while I was designing it. But I made one now with hand drawn illustrations and paper instead of cardboard 😛
Check out the instructable here
Ira Glass hosts a wonderful radio show at This American Life. His podcasts are really creative and interesting. Here’s some inspiring advice from him.
A long time back, during my college days, I had built a line following robot using an 8051 microcontroller. After college that robot aged and died in my backyard shed. Ever since I’ve been planning on resurrecting her, and finally did, using an Arduino Uno.
To make the robot platform I used two geared motors from an old toy crane, and a cheese tub.
Here’s a view after attaching a front wheel and IR sensors.