ADC: Read Potentiometer & Filtering

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#include <Arduino.h>

const int PIN = 34;
int readAvg() {
  long s = 0;
  for (int i = 0; i < 16; i++) {
    s += analogRead(PIN);
    delay(2);
  }
  return s / 16;
}
void setup() {
  Serial.begin(115200);
  analogReadResolution(12);
}
void loop() {
  Serial.println(readAvg());
  delay(200);
}