This tutorial demonstrates how to use a Software Driven Interrupt to simulate/duplicate the TTL control pulses for a NEJE 20W (5.5W Output) 450nm Blue Light Laser Module. My Laser Tank's (LT) laser ...

This project transforms an affordable NEJE laser engraver into a versatile 2D plotting machine using an ESP32 microcontroller. By replacing the laser module with a pen, pencil, or other drawing tool, ...