Last week I picked up a Tamiya tracked vehicle cassis from a hobby store to use as a mobile platform.

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!:

Old Hookbot code (pretty much the same):

And a Video:

1 Comment

  • By joe de, April 25, 2010 @ 9:59 am

    I have sugestion regarding guitar Iam a guitar player and have been searching for a site to put a passive midrange boost on my strat under the pickgaurd with a push pull pot if you go to stew mac they have a product called blkack ice which is close to passive as you can get im not an electronic engineer but understand the basics would you have a schematic for dummies on how to achieve this mod any help greatly appreciated and is there a way to do this with LM386 Low Voltage Audio Power Amplifier would be interesting you think

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