I connected like this, except the push button, for debugging. In the code, input 1 and enable 1 are always high, while input 2 is low. The motor should spin, but nothing happens I tied the following variations: take out all the 3 inputs and connect either IN1 or IN2 to ground pin. Motor spins. …

Strange problem with L293D h bridge

TomGeorge January 9, 2014, 8:30am 4

Hi, what is supplying your arduino with power, and can you post a copy of your sketch.

Tom.....

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