Crush Cans Effortlessly with an Arduino-Powered Arm
Interestingly, you can brake the motor by closing S1 and S3 simultaneously (or S2 and S4). Just don't close S1 and S2 at the same time (or S3 and S4) or you'll cause a short circuit! The L298 chip in your H-bridge module contains 2 miniature H-bridge circuits that work in exactly this way.
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