IIR Filter - Low f.

IIRfilter.ino

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

int v = 0;

void loop() {
  int c =   analogRead (A0);
  Serial.print(c);
  Serial.print(",");
  v += (c - v) * 0.06f;
  Serial.println(v);
  delay(10);

}