Designing UniStep - an open source UNIPOLAR stepper motor driver!

Take your projects to the next level with PCBs from: https://www.pcbway.com/ ! After inventing a translating driver for unipolar stepper motors to make them compatible with the existing A4988 CNC/3D printing ecosystem eight months ago, I really wanted to iron out the flaws in my design and shrink it down into a pin-compatible form factor. Little did I know that the journey would involve me starting to learn AVR development, bricking microcontrollers on purpose, and redesigning the circuit board from scratch at least three times!

Here's the UniStep repository on my Github:
https://github.com/ChronicMechatronic...

Resources I used:
https://ww1.microchip.com/downloads/e...
https://www.instructables.com/Updated...
https://thewanderingengineer.com/2014...
https://rayshobby.net/wordpress/multi...
https://www.engbedded.com/fusecalc/
https://blog.zakkemble.net/avrdudess-...
https://www.hackster.io/sbinder/attin...

Other useful resources:
https://www.makerguides.com/a4988-ste...
https://dntruong.wordpress.com/2015/0...
https://www.instructables.com/Program...

If you plan to place an order at PCBWay and aren't customer yet, use my referral link to let them know I sent you! https://pcbway.com/g/W9sRiS


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