Let's Make Robots!

Motors and Arduino Unos

I am working on a mobile robot, but I need a really cheap way to run two 1.5-3v motors (the ones found in the tamiya twin gearbox). It doesn't have to have the greatest amount of control, because for my apllication, my robot may not even have to go backwards. I don't have problems with sodering or anything along those lines, but I just don't have the experience you other guys have.

 

 

 

 

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Like CTC said, if you don't need to go backwards, a transistor should do.

http://www.instructables.com/id/Use-Arduino-with-TIP120-transistor-to-control-moto/

You need a Darlington Driver chip, or really, just the guts of one --a regular ol' 2n2222 transistor. One for each motor.