LED lamp, second try
I’d been designing a circuit to drive a string of 7 of the 1 watt Luxeon leds with constant, but variable current. I was originally going to use a constant-current driver based off of the classic LM317...
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LED lamp, PC board design, soldering stuff
I’d been working on the LED lamp design. I have the circuit design basically done, and I’ve been spending my free time in the past week learning Eagle CAD and designing the board. It’s quite a learning...
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Second LED lamp board
From my comments on the flickr post: All hand-routed this time. The more I get familiar with the particular board layout, the less the autorouter impresses me. [The second image is] with jumper in...
View ArticleWorking on a third board rev…
I got the parts for my LED Lamp project from Digikey today. Once I got home from work, I decided to engage in the relatively relaxing and quick task of verifying that everything fits the pads on the...
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LED lamp, done making boards
Though I have a cold, I had to do something with my time (such is life without a TV), and I redesigned the board and etched this: This is a project of firsts. Not only my first time designing PC...
View ArticleLED lamp software
I don’t even have the SOIC-8 test clip so I can program it, but between a couple hours last night and an hour tonight, I’ve already written most of the code for the ATtiny13. One thing I like about the...
View ArticleMore LED lamp software development
I’ve completed the software. I abandoned the SOIC test clip in favor of wires soldered directly to the board. The SOIC test clip loses contact with the IC if you just look at it funny. It’s very...
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Touch sensor tweaking
The one thing that wasn’t quite behaving right about the LED lamp was the touch sensor. I was having trouble both with it being far too sensitive (and sensitive to interference from other devices...
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