Nodemcu V3 Lua WiFi module integrated ESP8266 + additional memory 32bit 4MB FLASH, USB serial port ch340g WiFi modern ESP8266 + 32bit 4MB, The module is based on a wide range of exploration ESP8266 system chips from expressif. WiFi modern ESP8266 + 32bit 4MB, compatible with nodemcu board. The extra memory size is 32bit 4MB. This is better for big library projects. You do not have to worry about the size of the memory. Usb-ttl serial converter ch340g, mini USB socket. DC 4 ~ 9v PowerIn pin VIN. Pins 2.54mm (0.1 ") 15 X 2-wire pin set. Do not solder. Combined with WiFi access points and featured stations + microcontrollers using Lua programming language based on simple. WIFi modern ESP8266 + 32bit 4MB, Provide: Hardware IO. Can be used in the IDE event-driven API network application 10 d0-d10, PWM function programming, IIC and SPI communication, in a board WiFi wireless network and ADC (A0, etc. can be used as access points and / or stations, host servers ), Connect to the Internet, get or upload data. Developing panels can be used in developing countries.