Micro Stepper Motor on custom pcb A4988 teensy 4.0
Channel: Jorge Joaquin Pareja
Date: 2021-11-24

I made a custom #PCB for some #Micro #Stepper #Motors I bought off of Amazon.  The custom PCB needs a little more work but they work as designed.  #Teensy 4.0 is used to control four of these motors using an #A4988 driver.

These motors have 25 Ohm coils.  I have found some that look exactly the same with 12 Ohm coils.  The 25 Ohm coils are being run at 12V  - 0.200 Amp.  Very week!  I can probably increase to current a bit since the motors are not getting even remotely warm.

Motors - https://www.amazon.com/50pcs-DC3-5V-Stepper-stepping-DIY-1183/dp/B01N20ROUL
PCB - (Needs minor modifications) - https://oshpark.com/shared_projects/ODwZSa3E
Microcontroller - Teensy 4.0 - https://www.pjrc.com/store/teensy40.html
Driver Boards - StepStick A4988 - https://reprap.org/wiki/StepStick
Software - Requires "AccelStepper" library.  Samples from the lib work fine.