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Color Organ Style AnalyzerYears ago I visited a plastics molding company and saw a large piece of plastic in the waste bin. It was the result of the molder purging the system of air prior to the actual molding of clear parts. As soon as I saw it, I envisioned a light display and a few years later, created this color organ from it. It has since morphed into an amplifier but the original design remains.
One of the first video tests here. |
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Arduino LCD AnalyzerI built a spectrum analyzer using an Arduino, a custom MSGEQ7 shield with two channels and a TFT LCD shield. Worked okay was was kind of plain.
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Glass Head... and more to comeI built a spectrum analyzer into a glass head, primarily as an art piece and because I thought it would look cool.
Version 1.0 had 72 NeoPixel SMT chips soldered to strands of magnet wire, driven by an Arduino Pro Mini, two MSEQ7 spectrum analyzer chips clocked slightly off to create 14 channels and a capacitive sense board. Unfortunately, it was a 5VDC system and at some point, was plugged into a 12VDC power supply. Pretty much toasted the thing. Version 2.0 again has 72 LEDs but I used the ones on small round PCBs to improve reliability, added a DC-DC convertor to avoid smoking the electronics, and this time, I'm using a Teensy 3.2 with the Audio Adapter. It has built in capacitive touch sensing and a wonderful audio library that can handle the FFT functions in software. And yep... there's still more to come. I have built a couple of new spectrum analyzers using the Teensy 3.2 and Audio Adapter, LEDs and small LCD panels. Check out my YouTube page for some test videos |