a control board for LMD1845 H bridge driver
LMD1845 drivers allow to control bipolar motors at 55V and 3A. This project is a simple implementation of a driver for these chips. Fully written in assembler and using PIC16F57 it has proven to be extremly reliable over years (15 years of operations in 2024 !)
Full project can be found on my hackaday's pages : https://hackaday.io/project/195056-step-solo-stepper-motor-controler