Stepper Motor 28BYJ-48 Controller pcb

This is a simple pcb to move a 28BYJ-48 stepper motor using a microcontroller (ATMega8 or ATMega328) and a ULN2003.

There is a P-mosfet on board to be able to turn on or off the stepper motor. A resistor in parallel with the mosfet (R3 or R6) reduces the standby current without turning it off and avoid losing steps.

I designed it specifically to run holo clock. An amazing 3d printed clock you can find here.

Enter your email to receive the gerber files for the pcb. BOM available here.

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