Relay Module 12V with optocoupler DIN | KiCad Project

Single-channel 12V relay module designed for control by 3.3V or 5V microcontroller outputs. Contact actuation with optocoupler and transistor isolation.

This project includes complete KiCad files, custom footprints, Gerbers, BOM and 3D models. Optimized for easy assembly and industrial use in DIN rails.