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Author Topic: multiple 12V DC motor with arduino uno and L293 h-bridge  (Read 1113 times)
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I am making a tracked robot and am running into a problem when running the 2 12V DC motors.  I have my circuit wired to work with 2 smaller 6V motors and it works fine.   For the 12V motors, I have a 12V battery that I use as an external power source for the motors.  The L293 datasheet says it will support up to 36V, at less I read it wrong.  However, when I run the sketch, the 12V motors don't function right, then stop don't move.  I think it has something to do with the power source and or the h-bridge (L293) I'm using.

Any advice for using 2 12V DC motors would be appreciated. 

Massachusetts, USA
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Is it possible that your motors require more current than the L293 can control?  Check the specs on the chip and the stall current on the motors.

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