Analog Input gives the same value

Using Arduino Sensors
#1

Hello Everyone,

I am new to Arduino. This is the first time I am trying something with Arduino.

I am trying to do a 7 band spectrum analyser with electret mic and msgeq7 with Arduino UNO. I first tried connecting the ledstrip and was so excited when it worked (although its very simple, lol) but when I connect the mic and msgeq7 to Arduino and read analog signal, it gives same values in silence and when there is music playing as well. Even when I read analog signal from a different pin which is not connected to anything, it still reads the same values. So, I am assuming that there is some problem in the circuit or something.

I have attached the schematic (I am not using the clock module, pin 8 on msgeq7 is not attached to anything. I am using only 1 msgeq7 as its only 7 band and not 14 band analyser. For audio input, I am using electret mic, the rest is all the same as shown in the attached diagram).

This is the output from serial monitor:

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Could you guys please help me out!

Thank you

Schematic Diagram.pdf (862 KB)

#2

First of all the LED strip needs to be powered from an external power supply.

Schematic Diagram.pdf (862 KB)

800×469 135 KB

#3

Re-posted as .jpg with img tags

14-band spectrum analyzer.JPG
14-band spectrum analyzer.JPG1617×623 175 KB

14-band spectrum analyzer.JPG
14-band spectrum analyzer.JPG1617×623 175 KB

#4

What are you running for a sketch?

#5

void setup()
{
Serial.begin(9600);
}

void loop()
{
Serial.println(analogRead(A1));
}

I am just checking if the circuit is working fine. If its working fine, I will then connect the LED strip.

#6