Paul sent in his latest project via the Circuit Playground show-and-tell feature! He writes –
Hi Adafruit! Here’s something I made that I wanted to share… Dc motor driver board . Relays, mosfets and transistors. Powers two motors. The relay flips the positive and negative leads to the motor. The transistor drives the relay coil, and the MOSFET provides on/off and pwm speed control.
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Oh man, that would have come in handy last weekend when working on our submarine for the Red Bull Creation Challenge. Nice clean design there!
Is there a link to, how to build one of these?