Recent content by Stereo Joe

Hmm. Very interesting... I like small and elegant! I'm reading about the ATTiny85 and SOT23 although I'm not sure about the buck driver. Wouldn't that increase my voltage requirements?

I'd use a small on-board Arduino like a Digispark. The idea is that everything would be battery powered and I would only connect to the Arduino to try a new sketch. I've been looking into the FET - thanks for the suggestion! I'm very new to Arduino and electronic circuit design so I appreciate...

I'm planning a handheld build using a green diode (PL520) and li-ion batteries for power. Normally, I would just use one li-ion and a boost driver except that I would like to modulate the laser (at fairly slow rates of 1 - 20Hz). Ideally, I would provide a pwm signal from an Arduino board so I...

Perfect! Thanks. I'm glad I asked.

I think the bare copper will look great as a patina develops over time. Can't wait to get my single 10440 host! I still have to decide what will go in it, though...

Does anyone have a recommendation on where to pick up bare low powered red diodes? I'm just getting started building my own hosts and I want to make a quality low powered red laser for play with my cat. For safety, I want to keep the power very low - under 5mW. I can get cheapie modules from...

Thanks, DTR! Unfortunately, I don't have a bench power supply yet. I'm just getting started in this cool hobby and I'm ramping things up slowly with each build I do. I've got a couple extra 1N4007 diodes loose - do you know of any way to test one with some basic equipment? Batteries...

Howdy, I've been lurking here for a few months and I'm onto my 2nd build now. I went a bit more DIY this time and built my own test load to set the driver current: My diode is an Osram PL450B that I'm going to feed 200-250ma from a Micro Boost driver (fed by 1 li-ion battery). According to...