Motor Control Circuit Diagram April 5, 2019 Stepper motor controller . A stepper motor controller with driver circuit is explained in detail with a schematic. www.circuitstoday.com White Dimmer SwitchDeck Wiring DiagramCeiling Light Wire Colors2 Black Wires 2 White Wires OutletFive Pin RelayElectric Dryer WiringGoodman Heat Pump Wiring7 Wire Trailer Wiring