panel2.ino

/*
 Controling 2 Vista 128BPT alarm panels from a single keyswitch input device.  And controlling the LEDs that are attached to said device.
 
 */

 // Pins
 enum {
  // Outputs
  P1Out =    4,
  P2Out =    5,
  GreenLED = 6,
  RedLED =   7,

  // Inputs
  P1Armed =  8,
  P1Ready =  9,
  P2Armed = 10,
  P2Ready = 11,
  Button  =  2
 };

 //Set state variables
int state = 0;
int buttonState;             // the current reading from the input pin
int lastButtonState = LOW;   // the previous reading from the input pin

//Action when keysiwtch is activated:
void key(){
  
  // the following variables are unsigned long's because the time, measured in miliseconds,
  // will quickly become a bigger number than can be stored in an int.
  static unsigned long last_interrupt_time = 0;
  unsigned long interrupt_time = millis();

  if (interrupt_time - last_interrupt_time < 200) { return; }
  switch (state) {
    case 1:
      digitalWrite(P1Out, LOW);  digitalWrite(P2Out, LOW);
      break;
    case 2:
      digitalWrite(P1Out, LOW);  digitalWrite(P2Out, HIGH);
      break;
    case 3: 
    case 4:
    case 5:
    case 6:
      digitalWrite(P1Out, HIGH); digitalWrite(P2Out, HIGH);
      break;
    case 7:
    case 8:
      digitalWrite(P1Out, HIGH); digitalWrite(P2Out, LOW);
      break;
    case 9:
      digitalWrite(P1Out, HIGH); digitalWrite(P2Out, HIGH);
      break;
    case 10:
      digitalWrite(P1Out, LOW);  digitalWrite(P2Out, HIGH);
      break;
    case 11:
    case 12:
    case 13:
      digitalWrite(P1Out, HIGH); digitalWrite(P2Out, HIGH);
      break;
    case 14:
      digitalWrite(P1Out, LOW);  digitalWrite(P2Out, HIGH);
      break;
    case 15:
    case 16:
      digitalWrite(P1Out, HIGH); digitalWrite(P2Out, HIGH);
      break;
    }
    last_interrupt_time = interrupt_time;
}

void setup() {
  // Initialize Pins:
  pinMode(P1Out,    OUTPUT); //Panel 1 Output
  pinMode(P2Out,    OUTPUT); //Panel 2 Output
  pinMode(GreenLED, OUTPUT); //Green LED Output
  pinMode(RedLED,   OUTPUT); //Red LED Output
  pinMode(P1Armed,   INPUT);  //Panel 1 Armed
  pinMode(P1Ready,   INPUT);  //Panel 1 Ready
  pinMode(P2Armed,   INPUT);  //Panel 2 Armed
  pinMode(P2Ready,   INPUT);  //Panel 2 Ready
  pinMode(Button,    INPUT); //KeySwitch Input

  //Set up Interupt:
  attachInterrupt(digitalPinToInterrupt(Button), key, RISING);
  
  //Serial Debug Initalization:
  Serial.begin(115200);
}

#define DEBUG
# ifdef DEBUG
void debug(String gled, String rled, int keyState, int pn1Armed, int pn1Ready, int pn2Armed, int pn2Ready) {
    //Print states to Debug:
  Serial.print("KeyState: ");       Serial.print(keyState);
  Serial.print(" - State: ");       Serial.println(state);
  Serial.print("Panel 1 Armed: ");  Serial.print(pn1Armed);
  Serial.print(" Panel 1 Ready: "); Serial.println(pn1Ready);
  Serial.print("Panel 2 Armed: ");  Serial.print(pn2Armed);
  Serial.print(" Panel 2 Ready: "); Serial.println(pn2Ready);
  Serial.println("LEDs - Green: " + gled + " - Red: " + rled + "\n");
}
#else
#define debug(...) /**/
#endif

void loop() {
  // Read the input states:
  int keyState = digitalRead(Button);
  int pn1Armed = digitalRead(P1Armed);
  int pn1Ready = digitalRead(P1Ready);
  int pn2Armed = digitalRead(P2Armed);
  int pn2Ready = digitalRead(P2Ready);



  //Output Controls:
  //State 1
  if (pn1Ready == 0 && pn1Armed == 0 && pn2Ready == 0 && pn2Armed == 0){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, LOW);
    state = 1;
    debug("OFF","OFF", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
    
  }
  //State 2
  else if(pn1Ready == 0 && pn1Armed == 0 && pn2Ready == 0 && pn2Armed == 1){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 2;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 3
  else if(pn1Ready == 0 && pn1Armed == 0 && pn2Ready == 1 && pn2Armed == 0){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 3;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 4
  else if(pn1Ready == 0 && pn1Armed == 0 && pn2Ready == 1 && pn2Armed == 1){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 4;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
   //State 5
  else if(pn1Ready == 0 && pn1Armed == 1 && pn2Ready == 0 && pn2Armed == 0){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 5;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 6
  else if(pn1Ready == 0 && pn1Armed == 1 && pn2Ready == 0 && pn2Armed == 1){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 6;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 7
  else if(pn1Ready == 0 && pn1Armed == 1 && pn2Ready == 1 && pn2Armed == 0){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 7;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 8
  else if(pn1Ready == 0 && pn1Armed == 1 && pn2Ready == 1 && pn2Armed == 1){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 8;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 9
  else if(pn1Ready == 1 && pn1Armed == 0 && pn2Ready == 0 && pn2Armed == 0){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 9;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 10
  else if(pn1Ready == 1 && pn1Armed == 0 && pn2Ready == 0 && pn2Armed == 1){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 10;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 11
  else if(pn1Ready == 1 && pn1Armed == 0 && pn2Ready == 1 && pn2Armed == 0){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, LOW);
    state = 11;
    debug("ON","OFF", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 12
  else if(pn1Ready == 1 && pn1Armed == 0 && pn2Ready == 1 && pn2Armed == 1){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 12;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
   //State 13
  else if(pn1Ready == 1 && pn1Armed == 1 && pn2Ready == 0 && pn2Armed == 0){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 13;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 14
  else if(pn1Ready == 1 && pn1Armed == 1 && pn2Ready == 0 && pn2Armed == 1){
    digitalWrite(GreenLED, LOW); digitalWrite(RedLED, HIGH);
    state = 14;
    debug("OFF","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 15
  else if(pn1Ready == 1 && pn1Armed == 1 && pn2Ready == 1 && pn2Armed == 0){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 15;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }
  //State 16
  else if(pn1Ready == 1 && pn1Armed == 1 && pn2Ready == 1 && pn2Armed == 1){
    digitalWrite(GreenLED, HIGH); digitalWrite(RedLED, HIGH);
    state = 16;
    debug("ON","ON", keyState, pn1Armed, pn1Ready, pn2Armed, pn2Ready);
  }

  //Delay between cycles for stability
  delay(1000);
  //Reset panel outputs
  digitalWrite(P1Out, LOW);
  digitalWrite(P2Out, LOW);   
}