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If your an Electronics geek, you probably want to tweak electronics related stuff in every place you spend time. For example in your car, you probably are not happy with the information displayed on the dashboard. Maybe you want to know fuel consumption at a given time, or the air conditioning temperature or you want a unit that can control all this. Here is a nice project for this: t uses AVR microcontroller that is equipped with various sensors and LCD display which shows quite a bunch of info like momentary fuel consumption, momentary speed, journey time, passed distance and many average indicators. First working project version can be found here. Probably there will be another with more improvements.

Carputer – AVR based car computer: [Via][Link]