/* Project: Mod 5
 *  Date: 08 Feb 2020
 *  Written By: Zach Murray
 *  Description: Security System with Status Display
 */
int positive = 0;
int negative = 1;
int buzzerPin = 8;                 //Buzzer Pin
int LEDRPin = 4;                //LED Red Pin
  int brightness = 0;    // how bright the Red LED is
  int fadeAmount = 6;    // how many points to fade the LED by
int LEDBPin = 3;              //LED Blue Pin
int inputPin = 10;          //Input Pin for PIR Sensor
  int pirState = LOW;             // we start, assuming no motion detected
  int val = 0;                    // variable for reading the pin status
int count = 0;
 void setup() {
 
  pinMode(buzzerPin, OUTPUT);      // declare buzzer as output
  pinMode(LEDRPin, OUTPUT);      // declare LED Red as output
  pinMode(LEDBPin, OUTPUT);     // declare LED Blue as output
  pinMode(inputPin, INPUT);     // declare sensor as input
  Serial.begin(9600);
 }
  
 void loop(){
   val = digitalRead(inputPin);                     // read input value
   if (val == HIGH) {                               // check if the input is HIGH
    digitalWrite(buzzerPin, HIGH);                 // turn buzzer ON
    digitalWrite(LEDRPin, HIGH);                // turn the Red LED on
      delay(100);                       
        digitalWrite(LEDRPin, LOW);                // turn the Red LED off   
    digitalWrite(LEDBPin, HIGH);                // turn the Red LED on
      delay(100);                       
        digitalWrite(LEDBPin, LOW);              // turn the Red LED off                  
      if (pirState ==LOW) {                        //turned on
        int val1 = analogRead(positive);
        int val2 = analogRead(negative);
        float v1 = val1*5.0/1023;
        float v2=val2*5.0/1023;
       
       count=count+1;
       Serial.print("Threat Detected");
       Serial.println(count);
       Serial.print(v1);
       Serial.print(" ");
       Serial.print(v2);
       Serial.println();

       pirState = HIGH;                          // Only print output change
     }
    }
     
   else {
    digitalWrite(buzzerPin, LOW);                   // turn Buzzer OFF
    digitalWrite(LEDBPin, LOW);                      // turn Blue LED OFF
    analogWrite(LEDRPin, brightness);               // set the brightness of the Red LED
      brightness = brightness + fadeAmount;          // change the brightness for next time through the loop:
        if (brightness <= 0 || brightness >= 100) {
          fadeAmount = -fadeAmount;                  // reverse the direction of the fading at the ends of the fade:
        }
     if (pirState == HIGH) {                          //turned off
      Serial.println("No Threat Detected");

      pirState = LOW;
     }    
     }
    delay(40);                                      
   }