The Wiimote makes a perfect control system for a fire fighting robot.

It has IR sensors which can detect a candle and a bluetooth transciever to communicate back to a host computer. I use a boebot as the robot platform, an arduino, wiimote and a Linux computer.
The wiimote uses its IR sensor to find the candle. […]

Introduction
This project is basically an eight line intercom from which you can call 1 to 8 number. This system also support dialing and receiving telephone calls. ?

Figure 1:?? Block Diagram of the 89C51 PABx
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How to use

Pick your hand set, the dial tone will be listen now dial 1 to 8 number if the busy tone […]

In October 2006 I made my way to Dharamsala, northern India, where I visited the Tibetan Technology Center, and in particular a guy named Yahel Ben-David.

You see I am interested in developing low cost open hardware technology that can help people in the developing world. Yahel and the team at Tibtec are using commodity routers […]

Over the last few days I have been bringing some telephony hardware to life. I have finally obtained all the parts I need and am assembling, testing, and blogging as I go!
This work is part of a project to develop and build

This is a simple PC voltage oscilloscope using only a PIC12F675, a 20MHz oscillator, and a RS232 level shifter. The PIC takes a sample on GP2, immediately sends it to the PC at 115,200 baud using an software asynchronous serial routine, and repeats. It sends a 8-bit value that is read by the Visual Basic […]