int pot=A0;
int senser;
float volt;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
}
void loop() {
  // put your main code here, to run repeatedly:
  senser =analogRead(pot);
  volt =(5*senser)/1023;
  Serial.print("senser : ");
  Serial.println(senser);
  Serial.print("volt(v): ");
  Serial.println(volt);
  delay(1000);
}