ITEM NAME:Nodemcu-M ESP8285 Remote Serial Port Wifi Wireless Module Transceiver Devel Q5T2 Nodemcu-M ESP8285 Remote Serial Port Wifi Wireless Module Transceiver Devel Q5T2 the Nodemcu-M is completely compatatible with Nodemcu V3 but cheaper than it. the NodeMcu is an open-source firmware and development kit that helps you to prototype your product within a couple of scripts of Lua IOT lines. the ESP8285-based Development Kit, integrates GPIO, PWM, IIC, -wire and ADC all into a card. power your developement in the fastest mode combining with NodeMCU Firmware! USB-TTL included, plug & play 10 GPIO, each GPIO can be PWM, I2C, -wire. PCB antenna Open-source; interactive; programmable Color: blue + silver Material: plastic + metal low price; simple; intelligent WI-FI enabled Arduino-like hardware IO Advanced IO Hardware API, which can drastically reduce redundant work to configure and manipulate hardware code as ard-uino, but interactively in Lua script Nodejs Network API Style Event-driven API for the applicaitons network, which write code developers faciliates running on a 5mm * 5mm Nodejs-style MCU size greatly accelerate your IOT application development process. lowest cost WI-FI Package Include: 1 x ESP8285 Nodemcu-M development board