This is a step motor control extension board that sits on top of Raspberry Pi (EXCLUDING Raspberry Pi Zero series) with camera control and limit switch inputs. The following are its features:

  • Single power supply for both Raspberry Pi and step motor, eliminates messy cabling
  • Can supply up to 1.8A of current per phase for a two phase bi-polar step motor
  • Programmable power level 
  • Two optically isolated ports for camera or creatively other devices (2.5mm stereo jack)
  • Two limit switch inputs that can be used for homing, limiting (3.5mm stereo jack)
  • 8 micro stepping modes, from full to 1/128th 
  • Free Python based control software for focus stacking, photogrammetry, camera motion control and more


Here is a video running focus stacking control software.  


Download Software for Raspberry Pi This software runs on Raspberry Pi with Python 3.7.3 installed and it does not require touch screen, though it is designed with a 5" touch screen in mind


Dealer Single Axis Step Motor Extension For Raspberry Pi