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Hi Dave, I messaged you already, have you receive my email at all??
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Thx Audioguru !
One of the reason that I made up this Audio Spectrum Analyzer project is to demonstrate an example of using the LED-Rainbow...
Hi, FvM. you are right, I know a RC 2nd order bandpass filter is not good enough for a spectrum analyzer. However, this is just a very simple project for beginner and I am trying to make it simple. Also, due to the limited single power source and buget, I couldn't able to add too much details on...
Hi, I have made up an Audio Level Meter based on the LM3914 Dot/Bar display driver and it uses the LED-RAINBOW with 10 different colors as the bar graph display. You can cascade a few pieces together to make an audio spectrum display. The audio signal can be connected by the 3.5mm audio jacks...
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