tcpClient.pde

import processing.net.*;
import java.util.Date;
import java.net.InetAddress;

String photonAccessToken = "bb8a68e41fe5760178312110e635abfebaf0f171"; // for your entire account
String photonDeviceID = "3d0029000a47343337373738"; // for the specific device

String photonIPAddress; 
String photonSSID;
String photonDeviceName;

int port = 23;
Client client; 
boolean isOnline;
int timeOut = 100;

String incomingData = "";
String[] incomingPoints = new String[50];
String[] cleanPoints = new String[500];
String bin = "";

void setup() {

  println("Hello, World!");

  // setup the Processing window
  size(1200, 800);
  frameRate(60);
  background(0);

  // initialize and connect to the photon
  initPhoton();
  pingAddress();
  connectPhoton();

}

void initPhoton() {
  // grabs the network info about the Photon

  String photonInfo[] = new String[4];
  photonInfo = getPhotonInfo(photonDeviceID, photonAccessToken);

  photonDeviceName = photonInfo[0];
  photonSSID = photonInfo[2];
  photonIPAddress = photonInfo[3];
}

void pingAddress() {
  // determines if the photon is online

  isOnline = false;
  try {
    isOnline = InetAddress.getByName(photonIPAddress).isReachable(timeOut);  
  } catch (Exception E) {
    isOnline = false;
  }
}

void connectPhoton() {
  // makes the TCP connection to the Photon

  client = new Client(this, photonIPAddress, port);
  println("Connected to " + photonDeviceName + " @ " + photonIPAddress);
}

String[] getPhotonInfo(String deviceID, String accessToken) {
  
  JSONObject json;

  String name = "";
  String id = "";
  String ipaddress = "192.168.x.x";
  String ssid = "";
  
  boolean connected = false;
  
  String URL = "";
  
  String[] out = new String[4];
  
  try {
    URL = "https://api.particle.io/v1/devices/" + deviceID + "/?access_token=" + accessToken;
    json = loadJSONObject(URL);
    name = json.getString("name");
    id = json.getString("id");
    connected = json.getBoolean("connected");
    println("Found " + name + "!");

    
    if (connected==true) {
      URL = "https://api.particle.io/v1/devices/" + deviceID + "/ssid" + "/?access_token=" + accessToken;
      json = loadJSONObject(URL);
      ssid = json.getString("result");
      
      URL = "https://api.particle.io/v1/devices/" + deviceID + "/localip" + "/?access_token=" + accessToken;
      json = loadJSONObject(URL);
      ipaddress = json.getString("result");
    }
  
  } catch(Exception E) {
    //println("Couldn't find device");
  }
  
  out[0] = name;
  out[1] = id;
  out[2] = ssid;
  out[3] = ipaddress;
  
  return out;
}

void getData() {
  // receives the data from the Photon
  
  if (isOnline == true) {
    if (client.available() > 0) {

      incomingData = client.readString();

      incomingPoints = (split(incomingData, '\n'));
      for (int i = 0; i < incomingPoints.length; i++) {
        bin = incomingPoints[i];
        bin = trim(bin);
        cleanPoints = (split(bin, ' '));
      }

    }
  }

  
}

void displayData() {
  // draws the data from the Photon

  background(0);
  for (int i = 0; i < cleanPoints.length; i++) {
    if (cleanPoints[i] != null) {

      rect(i * 4, height / 2, 4, -abs(int(cleanAllPoints[i]) * 5));

    }
  }
}


void draw() {
  background(0);

  getData();
  displayData();
}