V3 Wireless module NodeMcu 4M bytes Lua WIFI Internet of Things development board ESP8266 esp-12e Arduino Compatible by Atomic Market NodeMCU is the fast leading edge low cost technology to WiFi Modern high level mature LUA based technology. It is an integrated unit with all available resources on board. It is super simple to complement your existing Arduino projects or any development board that has I/O pins available. Modern Internet development tools such as Node.js can take advantage the NodeMCU with the built-in API to put your idea on the fast track immediately. NodeMCU is built based on the mature ESP8266 technology to take advantage the abundant resources available on the web. High Quality Atomic Market Brand Product