void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
}

float A;
int ana;
void loop() {
  // put your main code here, to run repeatedly:
  ana = analogRead(A0);
  A = (ana / 1023.00) * 5.00;
  Serial.print(ana);
  Serial.print(" : ");
  Serial.println(A);
  delay(1000);
}