PAL TV game only need one ATmega!

It is an open source project called "AVGA", which uses only a single AVR ATMega168 to create a super mario clone. Schematics and firmwares are provided freely!


Link:
http://avga.prometheus4.com/index.php?p=2-3

LED used as touch/light sensor

LED is a light emitting diode, it is commonly used as output device. But by connecting each end with GPIO, you can use it as input device with some software tricks. This idea is cool, and I remember the first time when I got this idea was from the cool research site "Multi-Touch Sensing through LED Matrix Displays", you can find the information here:
http://cs.nyu.edu/~jhan/ledtouch/

Recently, I found someone use the same idea to implement a LED input sensing demo with ATmega8, it is very interesting.

Comprehensive AVR LED game console kit.

It is an AVR LED game console kit made in japan. It uses ATmega160 and four 74HS595 chips to extend output pins for controlling a 16x16 dot matrix led panel. It also comes with a speaker and joystick to help you start making a cool gaming console!

Cool demo video:


Links:
http://nicotak.com/avr/ledgame.html(Japanese only)

Using only AVR to produce both Video & Sound

The device is called "Craft" by www.linusakesson.net, it used only one ATmega88 to producce both video & sound on the TV. The animation is awesome, please take a look: