// Analog pin settings
int aIn = 0;    // Potentiometers connected to analog pins 0, 1, and 2
int bIn = 1;    //   (Connect power to 5V and ground to analog ground)
int cIn = 2;  
//int PhotoIn = 4; // photoresistor connected to analog 4 pin


// Digital pin settings
int aOut = 9;   //   red LEDs connected to digital pins 9, 10 and 11
int bOut = 10;  //  blue (Connect cathodes to digital ground)
int cOut = 11;    //green
int inBlink = 6;    //switch  connected to digital 6
int inTouch = 2;   // pushbutton/touchsensor connected to digital 2

// Values
int aVal = 0;   // Variables to store the input from the potentiometers
int bVal = 0;  
int cVal = 0;  
int TouchSensor_Val = 0;     // variable for reading the touch sensor/pushbutton pin status
int BlinkButton_Val = 0;    //variable for reading the 2nd button/switch that controls blinking



// Variables for comparing values between loops
int i = 0;            // Loop counter
int wait = (1000);    // Delay between most recent pot adjustment and output

int checkSum     = 0; // Aggregate pot values
int prevCheckSum = 0;
int sens         = 3; // Sensitivity theshold, to prevent small changes in 
                      // pot values from triggering false reporting
// FLAGS
int PRINT = 1; // Set to 1 to output values
int DEBUG = 1; // Set to 1 to turn on debugging output



void setup() {
  pinMode(aOut, OUTPUT);  // declare LED as output
  pinMode(bOut, OUTPUT);   
  pinMode(cOut, OUTPUT);
  pinMode(inTouch, INPUT);    // declare pushbutton as input
  pinMode(inBlink, INPUT);    // declare photoresistor as input
  Serial.begin(9600);        //open serial  port; data rate at 9600 bps
}

void loop(){
  
  i += 1; // Count loop
  
 BlinkButton_Val = digitalRead(inBlink);  // read input value
  TouchSensor_Val = digitalRead(inTouch);  // read input value
  
   aVal = analogRead(aIn) / 4;  // read input pins, convert to 0-255 scale
   bVal = analogRead(bIn) / 4;   
   cVal = analogRead(cIn) / 4;    
  
  if (TouchSensor_Val == LOW) {  // check if the input is LOW (button pressed) pulse change the color
       for(aVal = 0; aVal <=255; aVal+=5)
        {
         analogWrite(aOut, aVal);    // Send new values to LEDs
          delay(100);
        } 
 
       for(bVal = 0; bVal <=255; bVal+=5)
        {
          analogWrite(bOut, bVal);    // Send new values to LEDs
          delay(100);
        } 
  
      for(cVal = 0; cVal <=255; cVal+=5)
        {
          analogWrite(cOut, cVal);    // Send new values to LEDs
          delay(100);
        } 
  } else if (BlinkButton_Val == LOW) { //check if the input is LOW (button pressed) blink
      analogWrite(aOut, 0);    // Send new values to LEDs
       analogWrite(bOut, bVal);
      analogWrite(cOut, cVal);
       delay(5000);
      analogWrite(aOut, aVal);
       analogWrite(bOut, 0);
      analogWrite(cOut, cVal);
      delay(5000);   //delay for the time of the photoresistor var. reading
      analogWrite(aOut, aVal);
      analogWrite(bOut, bVal);
      analogWrite(cOut, 0);
      delay(5000);
      
  } else  {       //if button is released LEDs can be manually manipulated
      analogWrite(aOut, aVal);    // Send new values to LEDs
      analogWrite(bOut, bVal);
      analogWrite(cOut, cVal);       
   }


//  TouchSensor_Val = Serial.read();
  //Photo_Val = analogRead(4);          // read analog input from pin 4
 // Serial.print("Photo_Val: ");    //print the string
 // Serial.print(Photo_Val, DEC);       // print the value read 
//  Serial.print("\t");		// print a space between the readings
 // delay(100);                   // wait 100ms for next reading 

 }