This board is an Arduino Uno R3 board with an ESP8266 chip, giving you an Uno with Wifi on a single board.
The board feature a build-in Antenna as well as an external antenna connector.
Keep in mind that this board is practically two boards in one and you will need to program them as separate boards.
A set of dip-switches allows you to configure the serial connections.
Please contact us after purchase for us to provide you access to the manual.
Our kit comes with a USB cable as well as a 9V plug.