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LED UV exposure box part 2, the timer
Buiding a timer for a PCB UV exposure box. Continue reading
Author: electrobob
USB tree
A nice display for USB devices. Continue reading
LED UV exposure box part 1, the box
Building a nice UV exposure box to make PCBs. Continue reading
RFM12B mini breakout board
A mini breakout board for the RFM12B radio module. Continue reading
CoMBi Clock
A binary clock that displays hours minutes and seconds using colors on LEDs. Super difficult to read! Continue reading
Sunrise simulator
A DIY sunrise simulator using a high power light, for a soft wake up during the winter time. Continue reading
Linear LED power supplies
How to drive LEDs? WIth constant current supplies, of course. Continue reading