HoverBot: You Picked a Fine Time to Leave Me, Loose Wheel!

Read the Digital Edition (subscribers only!)

This time, we wrap up our HoverBot project with an explanation of the drive electronics.

SERVO Magazine (November 2010)
By L. Paul Verhage


Corrections

******The diode is backwards in both the schematic and the diagram.  The diode is reversed biased so that when the magnetic field in the relay collapses, the back emf current it creates shorts through the diode and does not flow back into the microcontroller operating the relay.******


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