The Whadda WPB107 NodeMcu is an open-source firmware and development kit that helps you to prototype your IoT product within a few Lua script lines.\n\n--Low-cost WiFi solution programmable with the Lua scripting language\n--On-board USB-serial adaptor\n--PCB antenna (no external antenna required)\n--10 GPIO pins, each GPIO can be PWM, I2C, 1-wire\n--Breadboard compatible\n--Powered via microB USB\n--Chipset: ESP8266\n--General purpose IO: GPIO 10\n--Operating voltage: 5 VDC (via USB)\n--Dimensions: 5.8 x 3.2 x 1.2 cm\n--Weight: 12 g\n\n--\nOur eBay Store\n\nWhadda WPB107 Nodemcu V2 Lua Based Esp8266 Development Board\n\nProduct Details\n\nThe Whadda WPB107 NodeMcu is an open-source firmware and development kit that helps you to prototype your IoT product within a few Lua script lines. \n\n--Low-cost WiFi solution programmable with the Lua scripting language\n--On-board USB-serial adaptor\n--PCB antenna (no external antenna required)\n--10 GPIO pins, each GPIO can be PWM, I2C, 1-wire;