//Misha Weiner photoPin

const int photoPin = A0;
const int ledPin1 =9;
const int ledPin2 =10;
const int button = 5;
int readVal;
int minSense = 1000;
int maxSense = 0;
unsigned long myTime;
int buttonPressed;
void setup()
{
  // put your setup code here, to run once:
pinMode(photoPin, INPUT);
pinMode(ledPin1, OUTPUT);
pinMode(ledPin2, OUTPUT);
Serial.begin(9600);
calibrate();
}
void calibrate()
{
  digitalWrite(ledPin1, HIGH);
  delay(30);
  digitalWrite(ledPin1, LOW);
  myTime = millis();
  while(millis() - myTime  < 5000)
{
  readVal = analogRead(photoPin);
  if(readVal > maxSense)
{
  maxSense = readVal;
}
if(readVal < minSense)
{
  minSense = readVal;
}
}
Serial.print("  Max Value  ");
Serial.print(maxSense);
Serial.print("  Min Value = ");
Serial.println (minSense);
}
void loop()
{
  // put your main code here, to run repeatedly:
readVal = analogRead(photoPin);
Serial.print("sensor Value  ");
Serial.print(readVal);
readVal = map(readVal, minSense, maxSense, 255, 0);
readVal = constrain(readVal, 0,255);
Serial.print("  Mapped Value = ");
Serial.println (readVal);
analogWrite(ledPin1, readVal);
analogWrite(ledPin2, readVal);
buttonPressed = digitalRead (button);
if(buttonPressed == 1)
{
  minSense = 1000;
  maxSense = 0;
  calibrate();
}