Tag Archives: PCB

Timer for Ultraviolet exposure with UV LEDs and PWM fine tuning

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

  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.

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 […]