The Little Line and Ledge Bot from Rocket Brand Studios is just a big bunch of wonderfullness packed in a big box of awesome.
Well, its about time... I finally got around to designing a good, solid line and ledge bot. This little guy is set up for lines, mazes and ledges (deskbot) with its 5-sensor bar in the front. Three sensors are mounted together in the center, spaced to match the width of electrical tape. Two more sensors are mounted at the far-outsides of the sensor bar. These two extra sensors are slightly wider than the wheels, and thus can detect the edge of a desk with plenty of time to stop or change direction. They are also super handy when used as a maze solving robot. --The two outside sensors are just what you need when following courses with 90 degree turns. 120:1 geared motors are not quite speed demons, but move this little bot around just fine.
On top of all this line-follow goodness, we add a Dagu Micro Magician board
. Simply an awesome board, packed full of features:
Atmega168 (Speaking Arduino)
On board USB
Sweet motor driver (with brakes)
3 axis accelerometer (not only a "tilt" sensor, but also can detect impacts --bump and turn with no bump switches!)
On board IR sensor (Control this bot with any Sony Tv remote (or universal remote)
Finally, there is even space left over (and a cut-out) if you want to add a micro servo and "head" in the future.
Rocket Brand Studios
Little Line and Ledge
MicroM info, Instructions and Downloads