ITEM NAME:NodeMcu Lua Wireless WIFI Module Connector ESP8266 Development Board A#S Product Description Description: NodeMcu Lua Wireless WIFI Module Internet of Things Connector Development Board Based ESP8266 Feature: 1. Open source, interactive, programmable, low cost, simple, intelligent, WI-FI hardware. 2. Operating hardware IO for Arduino: Providing high-level interfaces to hardware frees application developers from complex hardware configurations and register operations. Use interactive Lua scripts to write hardware code for Arduino. 3. Write network applications with Nodejs-like syntax: Event-driven API greatly facilitates users to develop network applications, write network code in a Nodejs-like manner, and run on a 5 mm * 5 mm MCU to speed up the progress of your Internet of Things development. 4. Ultra-low-cost WI-FI modules: Development boards for rapid prototyping, integrated with ESP8266 WIFI chips for less than 10 yuan. We provide you with the most cost-effective Internet of things application development platform. Specification: Size: 55*30*10mm/2.16*1.18*0.39'' Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding. Included: 1 x WIFI Module.Use interactive Lua scripts to write hardware code for Arduino. Included: 1 x WIFI Module. Due to the different display and different light, the picture may not show the actual color of the item. If item is defective after 3 months, you can still send it back to us.