testing with Arduino UNO
Connect the ESP8266's TX and RX to any Arduino I/O pin and define the ESP8266_RXPIN ESP8266_TXPIN to the SoftSerial's TX and RX pin number
When you want to output the debug information, please use DebugSerial. For example,
DebugSerial.println("hello");
the Defaul debug serial is Arduino's TX and RX pin
Modified by cutebomb(cutebomb@gmail.com) 2014/12/21