Features:

• Name: ESP8266 motor shield;
• using ESP8266 DEV KIT development shield module;
• extend the output ports for ESP8266 DEVKIT: SPI, UART, GPIO, AI and 3.3V power interface;
• extend 2-ways motor, then can directly drive 2-ways motor;
• design a power switch;
• driven chip: L293D;
• voltage for motor: 4.5V-36V;
• voltage for ESP control board: 4.5V-9V;

This board uses a Silicon Labs CP2102 USB to serial converter IC.
You can download the USB drivers from here: https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx

ESP8266 : https://github.com/esp8266/

NodeMCU:  http://nodemcu.com/index_en.html  

Lua:  http://www.lua.org/home.html