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Building a Home Security System with BeagleBone by Bill Pretty

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The DC-motor driver

The DC-motor driver circuit will drive two DC motors, and unlike the solenoid driver, this board can control the motors separately. You can also connect it directly to the 3.3V outputs of the BeagleBoard adapter board. The PCB has been designed so that it fits between connectors J8 and J9 on a BeagleBone prototype board. Expansion boards are stackable on the BeagleBone, so it should be possible to put this board above or below your alarm system boards.

The DC-motor driver

The DC motor control board

In this case, the motor will be powered continuously as compared to the solenoid, which is pulsed. For this reason, it will be a good idea to install a ...

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