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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Cool hack! But, to be clear, you are NOT powering this from the 120V AC wall socket. Maybe I missed it in your write-up, but you must be…

EROC wrote: > The trimpot on each of the heads would adjust the brightness of the > corresponding LEDs of that lamp head, and the trimpot in…

First, it's a great project, and also a great way of keeping stuff out of the landfill! I have a few quick comments: First, running the…

I glad to see you used the right CE mark (CE Mark vs the China Export Mark). See…

Just solve the problem with different version of Eagle.

Hi, I have simmilar problem. Recently I bought CHM-T35A pnp machine. Now I am having trouble with ConvertToCharm.ulp. I am keep getting…

For this short a range, I can't help thinking that the RFM69s (or comparable) would have been much more savvy. (I'd will in general abstain…

We have several products that have gone through the FCC throughout the years (all intentional radiators, all used in airborne applications).…

@nate 1. Interesting! 2. I've worked with government agencies and various certification processes before, (but not the FCC), so "ah feel yer…

Thanks for sharing, Nate! A few years back, there was an "expert" who wrote a book (actually an "e-book") on getting FCC (and other)…

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