board-adafruit-io.ino

// set up the 'dadStatus' feed
AdafruitIO_Feed *dadStatus = io.feed("dad-status");

/* LED Friendly names */
const int inMeetingLed = 15;
const int headphonesOnLed = 14;

void clear() {
    digitalWrite(inMeetingLed, LOW);
    digitalWrite(headphonesOnLed, LOW);
}

/* These are made available as Particle Cloud Functions
 * so I can call them from anywhere */
int goInAMeeting() {
    digitalWrite(inMeetingLed, HIGH);
    digitalWrite(headphonesOnLed, HIGH);
}

int goHeadphonesOnly() {
    digitalWrite(inMeetingLed, LOW);
    digitalWrite(headphonesOnLed, HIGH);
}

int goAvailable() {
    clear();
}



void setup() {

  // start the serial connection
  Serial.begin(115200);

  // wait for serial monitor to open
  while(! Serial);

  Serial.print("Connecting to Adafruit IO");

  // connect to io.adafruit.com
  io.connect();

  // set up a message handler for the count feed.
  // the handleMessage function (defined below)
  // will be called whenever a message is
  // received from adafruit io.
  dadStatus->onMessage(handleMessage);

  // wait for a connection
  while(io.status() < AIO_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  // we are connected
  Serial.println();
  Serial.println(io.statusText());
  dadStatus->get();

  pinMode(inMeetingLed, OUTPUT);
  pinMode(headphonesOnLed, OUTPUT);

  clear();

}

void loop() {

  // io.run(); is required for all sketches.
  // it should always be present at the top of your loop
  // function. it keeps the client connected to
  // io.adafruit.com, and processes any incoming data.
  io.run();
}

// this function is called whenever a 'dadStatus' message
// is received from Adafruit IO. it was attached to
// the dadStatus feed in the setup() function above.
void handleMessage(AdafruitIO_Data *data) {

  Serial.print("received <- ");
  Serial.println(data->value());

  if (!strcmp(data->value(), "MEETING")) {
    Serial.printf("\nIt meeting!");
    goInAMeeting();
  }

  if (!strcmp(data->value(), "THINKING")) {
    Serial.printf("\nThinking!");
    goHeadphonesOnly();
  }

  if (!strcmp(data->value(), "AVAILABLE")) {
    Serial.printf("\nAvailable!");
    goAvailable();
  }

}

board-particle-io.ino

/* LED Friendly names */
int inMeetingLed = D0;
int headphonesOnLed = D3;
void clear() {
    digitalWrite(inMeetingLed, LOW);
    digitalWrite(headphonesOnLed, LOW);
}
/* These are made available as Particle Cloud Functions
 * so I can call them from anywhere */
int goInAMeeting(String _extra) {
    digitalWrite(inMeetingLed, HIGH);
    digitalWrite(headphonesOnLed, HIGH);
}
int goHeadphonesOnly(String _extra) {
    digitalWrite(inMeetingLed, LOW);
    digitalWrite(headphonesOnLed, HIGH);
}
int goAvailable(String _extra) {
    clear();
}
void setup() {
    pinMode(inMeetingLed, OUTPUT);
    pinMode(headphonesOnLed, OUTPUT);
    clear();
    bool success = false;
    success = Particle.function("goInAMeeting", goInAMeeting);
    success = Particle.function("goHeadphonesOnly", goHeadphonesOnly);
    success = Particle.function("goAvailable", goAvailable);
    /* Probably shouldn't be so presumptuous 
     * with the whole "success thing", but YOLO */
}
void loop() {
}