Mini Stepper Motor Speed Controller Module Board

Mock of a cheap Chinese stepper motor controller. Circuit board, potentiometer and hole locations where measured using calipers (±1mm), and non critical dimensions of the circuit components where located using an importet photo reference. Title taken from a AliExpress listing of the board: DC 5V-12V 6V Stepper Motor Driver Mini 2-phase 4-wire 4-phase 5-wire Multifunction Step Motor Speed Controller Module Board