boolean firstRun=true;
double tip=0;
double last=0;
double realVoltage=0;
void setup(){
   Serial.begin(9600);
   Serial.println("Serial Started w00t");
   last=analogRead(0);
}

void loop(){
  tip=analogRead(0);
  if(tip>50){
         Serial.print("Incoming Voltage is ");
         Serial.println(tip);

         last=last+((tip-last)/5);
         Serial.print("avg voltage is ");
         Serial.println(last);
         realVoltage = ((last*6.83593)/1000); // 7k/5k*5000mV/1024
         Serial.print("Real voltage: ");
         Serial.println(realVoltage);
  }
}