void setup() 
{
  Serial.begin(115200);

}

void loop()
{
 int data;
 float V;
 float percent;
 data = analogRead(A0);
 V = 5.0*data/1023;
 percent =100.0*data/1023;
 Serial.print(data);
 Serial.print(",");
 Serial.print(percent);
 Serial.print(",");
 Serial.println(V);
 delay(100);
}