Servo Magazine (July 2017)

Hardware Hacking a Power Wheelchair Control Module

By Darby Hewitt    View In Digital Edition  

On the surface, using a power wheelchair as a robotic base seems like a no-brainer. The control modules for these chairs contain all of the necessary electronics to drive the motors, including DC/DC converters, PWM generation, and a microcontroller to govern acceleration, deceleration, and braking. Before I knew better, I purchased a power wheelchair thinking that it would be a simple task to wield the functionality of the electronics already built in. Well, it wasn’t.


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