Cheap power supply No comments
The Challenges

Power supply and motors

Keith has been playing about with a new cheap power supply using the Nerf Gun motors as a test bed.  It turns out power supplies are quite a good method for determining how much current they draw and thus what current the motor driver needs to deal with.  Keith produced a quick video demonstrating the power supply with examples using the Nerf Gun motors.

If you are still deciding on motor drivers he recommends getting the motors first and doing a simple stall test with a power supply or multimeter and then getting the motor driver to suit.

See his video here:

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