Features: brand new and high quality NodeMcu Lua WIFI IoT development board ESP8266 serial port wifi module SUNLEPHANT ESP8266 support all IO ports lead out, direct download without reset. ESP8266 NodeMcu is a popular and widely used development board based on the esp-12e wifi module. It combines elementsof easy programming with IDE and wifi capacity. It contains a built in 32-bit loow power CPU, ROM and Memory. It is a complete and self -contained Wi-FI network solution that can carry software applications as a stand-alone device or connected with microcontroller. Specifications: Item: ESP8266 CH340 Development Board Model: NodeMcu Lua WIFI V3 Driver: CH340 V3 Size: approx 57X31mm/2.24x1.22in Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 1cm errors due to manual measurement. Package includes: 1 PC x ESP8266 CH340 Development Board Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.