Spark Core Sketch for testing Firmata over TCP server

firmata-test-server.ino

#include "firmata-spark/firmata-spark.h"

TCPServer server = TCPServer(5678);
TCPClient client;

bool new_client = true;

void setup()
{
  // start listening for clients
  server.begin();

  // Make sure your Serial Terminal app is closed before powering your Core
  Serial.begin(9600);
  
  // Now open your Serial Terminal, and hit any key to continue!
  while(!Serial.available()) SPARK_WLAN_Loop();

  Serial.println(WiFi.localIP());
//   Serial.println(WiFi.subnetMask());
//   Serial.println(WiFi.gatewayIP());
//   Serial.println(WiFi.SSID());
}

void loop()
{
  if (client.connected()) 
  {
    if (new_client) 
    {
      Firmata.begin(client);
      new_client = false;
      Serial.println("New client connected");
    }
    
    Serial.println("> Hello world");
    Firmata.sendString("Hello world");
    delay(10);
  } else {
    new_client = true;
    client = server.available();
  }
}