i want to make a spectrum analyser about 7 band, maybe 10 led's ber band/bar.
what would be a simple way of doing it jaycar have a 4 band kit, could mod that, but is their and easy way?
its for an effect, doesnt have to be highly acurate,
i want to make a spectrum analyser about 7 band, maybe 10 led's ber band/bar.
what would be a simple way of doing it jaycar have a 4 band kit, could mod that, but is their and easy way?
its for an effect, doesnt have to be highly acurate,
ETI (I think) did a multi channel LED spectrum analyser back in the
70's, one board per channel with about 10 LEDs. The article should still be relevant. Can probably dig up details if you want. Basicially it's a band pass filter with a peak detector per channel.Dave :)
Cheaper to use an old computer with soundcard and SA (FFT) software these days.
MrT.
Look at Circuit Cellar web site
Rudolf
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