This repository is a KiCad project for a relay control board that controls power supplies for laser cutters (such as M40) with TTL signals like MKS-DLC32. For details about the power supply for CO2 ...

laserclass.py read and write to the RS232 port of the laser and activates the laser via a TTL line from GPIO 16 ...

[Paul de Groot] wrote in to let us know about a drop-in controller replacement he designed for those economical K40 laser engravers that are everywhere on eBay. With the replacement controller, ...