Nodemcu v3 is a development board that houses the esp8266 wifi module and the ch340g usb-ttl converter. It is one of the most commonly used price-performance development boards in Internet of Things applications.
Technical Specifications:
Model: Nodemcu V3 Development Board
Microprocessor: ESP8266
USB-TTL Converter: CH340G
It is open source.
It supports GPIO, PWM, I2C, and 1-wire connections.
Product Contents:
1 Piece Nodemcu V3 - ESP8266 Development Board - CH340G
size: 57*30.4*3mm