Finally, chilly cathode lights can be utilized for much a lot more than illuminating the inside of your computer or making your whip look like it can hover. [James] found if he different the voltage going into the inverter, only a specific amount of the tube would light up. provide a hacker an fascinating observation as well as sufficient time, as well as ultimately he’ll come up with something truly cool. In this case, it’s a chilly cathode audio visualizer, powered by fluorescent tubes doing unforeseen things.
The develop details are a bit scant, however we were able to coax an imgur album of [James]’ build. He’s utilizing these 20″ CCFL lights with the stock digital inverters replaced with TDK CCFL inverters.
The digital manage of this develop is supplied by an Arduino Mega as well as a custom-made shield. We’re guessing the graphic EQ is supplied by an MSGEQ7 chip, as well as the inverters themselves are powered with the Mega’s PWM pins. It’s a great deal like an IN-9 Nixie graphic EQ, only much, much bigger. [James] is planning a larger version of this build, dubbed the Mega speKtrum as well as we can’t wait to see that develop together with a appropriate writeup.
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