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Last night I had an empty bottle of Jones Soda on my desk, so I rinsed it out and filled it with cool water. Then I took one of my super bright blue LEDs and suspended it over the mouth of the bottle at full brightness. It turned to look pretty cool, and in the [...]
Received my SparkFun order today, amongst the contents were the things I was seeking most, several 10k breadboard compatible potentiometers, three dual op-amps (LM358), three super bright 10mm LEDs (One red, green and blue) as well as a few other toys. The two biggest deals are the opamps and the potentiometers, while not strictly the [...]
This is a quick sketch I made up of a circuit to power and control a Red, Green and Blue LED with varying brightness. The processor at the core is an ATtiny2313 from Atmel. It will accept three numbers over a serial link and use that to set the brightness of the corresponding LED using [...]