   * temporary - setup and test lcd
   */
   lcd.begin(16, 2);
-  lcd.print("Online");
+  printStatus();
   
   /*
   * temporary

  }
  
  triggerState = digitalRead(triggerPin);
  if (triggerState == HIGH && systemArmed) {
    systemArmed = false;
    digitalWrite(armedPin, LOW);
    countdown();
  }
}

// countdown and I2C send
boolean systemArmed = false;

// captures the state of trigger button. If false, prevents a button push
// from triggering a countdown. Should be set to true when the system becomes
// armed and then to false again the first time the button is pushed.
boolean triggerReady = false;

// countdown timer = 5 seconds
const long interval = 5000;

void setup() {
  // start I2C slave
