Electret Microphone with LM358 gives weird analog reads combined with WS2812

Other Hardware Sensors
9

Hi DeBende

Couple of points on the following:

uint8_t input=0;
uint8_t lastRead=90;
...
void readSens(){
  if (millis()>lastRead+50){
    input = analogRead(analogIn); 

    if (input>maxInput){
      maxInput=input;
    }

    input=map(input,0,maxInput,10,255);
    // Serial.println(input);
  }
}

analogRead() returns a value from 0 to 1023, so not sure what will happen when you assign it to input declared as uint8_t.
EDIT: it will calculate the remainder of the analogRead() value when divided by 256. I.e. as per the modulus (%) operator.

lastRead is also declared as uint8_t, whereas millis() returns uint32_t. Also I can't see where lastRead is updated, so the comparison with millis() is (almost) always going to be true, I think.

Regards

Ray