This firmware helps to connect any device to Wi-Fi through serial port using ESP8266 board and can send or receive data in textual form. It is easy to program and use. One can connect Arduino board to any server using Wi-Fi by just writing 4 lines of code. It applies interpreter-based approach for accepting commands. It is based on Wi-Fi library provided by ESP8266 community package. It can connect to any server or website to transact API based data. It supports SSL encryption, basic authentication, ping, traceroute and several others. Technologies used: C++