TrakBot
Last week I picked up a Tamiya tracked vehicle cassis from a hobby store to use as a mobile platform. http://www.superdroidrobots.com/shop/item.asp?itemid=484
Sunday and Monday I put it together and canibalized my old Hookbot for the H-Bridge, gearboxes and PIC. I used the Tamyia dual gearbox drive rather than the one that came with the chassis because any good robot can turn, not just go forward and reverse; hey maybe I’ll use the single motor for a turret! Anyway the brains are a PIC 16F872 and the H-bridge is a SN754410. The drive motors are power by three AA batteries for ~4.5volts and has a bit of acceleration and power, I am quite impressed. Right now the H-bridge gets a little warm when the motors are strained. I am going to have to do some tests and see how hot it gets on carpet running for a few minutes.
Here are some pics!: http://mybitbox.com/gallery/trak_bot/
Old Hookbot code (pretty much the same): http://mybitbox.com/files/s1axter/hookbot.asm
And a Video: http://www.youtube.com/watch?v=CJphi2-PTYU
August 27, 2008 8:06 pm 
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