Taking what I've learned about LED color mixing and Python, along with our LumiDrive LED Driver and LuMini LED Ring, I set out to create a light ring for macro photography that surpasses all others.

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Last week, we took a look at using the digital pins on our new LumiDrive LED Driver. This week, we'll play with the analog pins, and see if we can't put something together using both!

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The serial controlled motor driver is stripped of its firmware and reprogrammed to function as an amplifier. Then it's surrounded with circuits that turn the whole shebang into a portable guitar amp.. but it won't win any awards.

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In glancing over this, it looks like another good tutorial from Sparkfun. The Sparkfun tutorials were invaluable when an employer insisted…

Not sure how the ripup @; command would be used with a startup script, since the pours aren't filled when you open a brd file. But I love…

Nice write up Eric. Thanks! The creation of an extra reference layer will come in handy! Here are couple of my favorite commands: use -*;…

One of the things I have in my startup script is several menu buttons for the Board layout screen. These buttons select what layers to…

"reading datasheets is hardly a social activity" What??!!?? You mean you don't sit around on Saturday nights with friends quoting from…

Thanks! Currently Supported: * 3 Color ePaper displays * [0.6" RGB…

This looks to be awesome and easy to use! Congratulations! And Thank you! Are there any SparkFun products you might link to which currently…

thank a lot for good idea. We made a similar, but out of plywood. Although it was the first prototype.…

Absolutely! We did Paper Circuits (https://www.sparkfun.com/products/14655) with them over the holidays, and then this was a big step up.…

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