There are a lot of tutorials and also guidance on the datasheet. However, even though I repeated the same procedures over and over again, there is a constant beep sound and LED is on when I connect an LED to analog output which has the output of the msgeq7 IC's signal. Even the LED is not connected…

Beep sound problem with MSGEQ7

DVDdoug July 4, 2014, 5:49pm 2

Sorry if this is a dumb question, but do you have a resistor in series with the LED, or is the LED connected directly to the Arduino?

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