Arduino; Let’s all make robots with frikkin’ “lasers”

After my post about the Wattson I started poking around with the idea of more homebrew electronics. In particular the homebrew ambient orb (another one made a with PIC) seemed really cool. While reading about that particular marvel I found out about the Arduino.

The Arduino is an open source prototyping board. The system is powered by an ATMega128 processor and takes serial input over USB or bluetooth. It’s programmable in a subset of C and has an open source IDE for Windows, Mac OS X and Linux. Essentially anything that has electrical input/output can be hooked up to one of these things. For example the Ambient Orb is just bright red, green and blue LEDs under a light diffuser in a glass dome. By using the processor to alter the brightness of each LED any colour can be produced.

(An Arduino powered robot from the Make blog)

What I find exciting is these prototyping boards cost relatively little money (roughly £18 for the USB version) but can be used to make all kinds of DIY electronics possible. To use the ambient orb example again, rather than the $150 plus shipping from the states that the ‘real’ one costs it can be made for as little as £30 by anyone who is bright enough to follow some instructions from the internet. Not only that but the homebrew version can be used display any data, because it has been built Open Source from the ground up.