I used a servo controller and two motor controllers from ... A LiPo battery powers all but the Pi because I need to configure a battery eliminator circuit to provide five volts.

Implement the motor and accompanying rotary sensor into a motor control circuit in both hardware and software. Add a motor and motor control circuit into a microprocessor based development kit. Create ...

En route to getting the off-the-peg DC-51 motor speed controller ... generator for the thyristor timing circuit. The timing comparator (op-amp pins 5, 6 and 7) compares the ramp with the ...