Computers & Mobile

10601604 3B7216F6Cc MAntonOlsen writes “This is an easy to build dc-dc switcher that can drive quite a few LEDs at 3.3V with a single AA battery. Version 1 is going in a mini mag light and I’m thinking version two will make a very light weight bike light.” [via & instructions] Link to photos.


current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

View more articles by Phillip Torrone