Wemos NodeMCU V3 ESP8266 CH340G WIFI Module With Extra Memory 32M Flash module is based on widely explored esp8266 System on Chip from Expressif.We add extra memory size to 32Mb. This better, for making a big project with the big library. You do not need to worry about the size of memory.
Onboard have USB-TTL serial converter CH340G, with Micro-USB socket.
PowerIn for DC 4~9V, to pin VIN.
Pin headers 2.54mm (0.1″) 15 pins x 2 lines in set. Don’t solder.
It combined features of WIFI access point and station + microcontroller and uses simple LUA based programming language.
WIFI NodeM ESP8266+32Mb, offer:
Arduin0-like hardware IO. And can programming in Arduin0 IDE
Event-driven API for network applications
10 GPIOs D0-D10, PWM functionality, IIC and SPI communication, 1-Wire and ADC A0 etc. all on one board
Wifi networking (can be used an access point and/or station, host a web server), connect to the internet to fetch or upload data.
For developing can use install to the breadboard.