Timer for Ultraviolet exposure with UV LEDs and PWM fine tuning Timer operation video Timer measurement video Previous timer projects had only on/off possibilities for the UV leds. Some projects need a finer tuning of the UV value, and I am not talking just about PCBs. Stamps and other things need ultraviolet curing, with setups […]
PCB exposure with UV Leds and digital countdown timer DIY I have worked for years with a mercury-discharge bulb for exposing PCBs and it started lately to show symptoms of old age. I have decided to retire the old stuff and to replace it with a modern installation, using UV Leds and a […]
State Of The Art Single Layer or Double Layer DIY PCB Production with FR4 or aluminum substrate After many years of DIY electronic projects, I can share my experience about having state of the art electronic PCBs, time after time, with zero or at least minimal initial errors. I have chosen a double sided […]