View Full Version : Proto Stepper Driver setup

03-31-2004, 01:47 PM
Just thought I would share some of mine and a buddies electronics were working on: First board is based on a Allegro 3977 chip. http://webpages.charter.net/pminmo/proto3977.jpg
Has input signal conditioning, can run full step or micro step of the 3977, it's designed to cable to the second board of my buddies:http://webpages.charter.net/pminmo/protoset.jpg

The second board is setup to run 3 of the 3977 boards, takes the parallel port in, properly signal conditions those signals. Also takes 3 axis of limit switch logic for enabling and diabling the drivers.