Opencircuit NodeMcu v3 Lua ESP-12E WIFI Development Board

The NodeMcu is an open-source board with inbuilt ESP-12E WIFI module. This is not a weakling like the Arduino's, with 512kb of memory and a processor at 40Mhz there is not a shortage of sources. This sign is extremely suitable for starting IoT (Internet of Things) applications. Programming the NodeMcu is slightly different than normal, with the API that looks like NodeJS, this module receives the commands through the LUA scripts that are uploaded.

This concerns version 3 of the NodeMCU series, which is somewhat wider than the previous version and therefore no longer fits neatly on a breadboard. To make this right, an I / O shield has been designed to fit this NodeMCU perfectly. This version contains the CH340G version to save costs instead of the CP2102 serial chip.

Properties Wireless 802.11 b / g / n standard Supports STA / AP / STA + AP Standard on 9600 baud

Built-in TCP / IP protocol stack to support multiple TCP Client connections (5 MAX) D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc., port driver capability 15mA AD0: 1 channel ADC Power input: 4.5V ~ 9V (10VMAX), USB powered Current: continuous transmission: ≈70mA (200mA MAX), Standby: <200uA Transfer rate: 110-460800bps Support UART / GPIO data communication interface Remote firmware upgrade (OTA) Support Smart Link Smart Networking