#include <SoftwareSerial.h>
SoftwareSerial Serial_photo(3,4); // tx, rx

const int numReadings = 10;

int readings[numReadings];      // the readings from the analog input
int readIndex = 0;              // the index of the current reading
int total = 0;                  // the running total
int average = 0;                // the average

int sensorPin = 1;    // analog input pin to hook the sensor to
//int sensorValue = 0;  // variable to store the value coming from the sensor

 
void setup() {
  Serial_photo.begin(9600); // initialize serial communications
  // initialize all the readings to 0:
  for (int thisReading = 0; thisReading < numReadings; thisReading++)
    readings[thisReading] = 0;
}
 
void loop() {
  // subtract the last reading:
  total = total - readings[readIndex];
  // read from the sensor:
  readings[readIndex] = analogRead(sensorPin);
  // add the reading to the total:
  total = total + readings[readIndex];
  // advance to the next position in the array:
  readIndex = readIndex + 1;

  // if we're at the end of the array...
  if (readIndex >= numReadings)
    // ...wrap around to the beginning:
    readIndex = 0;

  // calculate the average:
  average = total / numReadings;
  //average = map(average, 0, 1024, 1024, 0);
  // send it to the computer as ASCII digits
  //Serial_photo.println(average);
  delay(1000);        // delay in between reads for stability
  

  //sensorValue = analogRead(sensorPin); // read the value from the sensor
  //sensorValue = map(sensorValue, 0, 1024, 1024, 0);
  //Serial_photo.println(sensorValue); // print value "x" to Serial Monitor
  Serial_photo.write(average);
  
  //delay(500); // short delay so we can actually see the numbers
}