void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
float P4 = analogRead(A5);
float P3 = analogRead(A4);
float P2 = analogRead(A3);
float P1 = analogRead(A2);
Serial.print((P4/1024)*5 );
Serial.print("\t");
Serial.print((P3/1024)*5);
Serial.print("\t");
Serial.print((P2/1024)*5);
Serial.print("\t");
Serial.println((P1/1024)*5);
}