NodeMCU Lolin V3 WiFi development board based on the ESP8266 ESP-12F. It features a built-in CH340C USB-TTL converter, enabling direct programming and rapid IoT prototyping in Lua or Arduino.
The NodeMCU Lolin V3 is an open-source development board based on the ESP8266 WiFi microcontroller (ESP-12F module). It integrates all the essential components for rapid IoT prototyping, including wireless connectivity, power management circuits, and a USB interface for programming and data transfer via the built-in CH340C TTL converter.
Version 3 is designed with a slim profile compatible with standard breadboards. Unlike older versions, it does not require physical Reset or Flash buttons for standard programming workflows. It supports development in Lua, Python, or via the Arduino IDE, offering a Node.js-style network API and simplified GPIO handling.
| Specification | Value |
|---|---|
| Microcontroller | ESP8266 (ESP-12F) |
| Operating Voltage | 3.3 V |
| Connectivity | WiFi 802.11 b/g/n (2.4 GHz) |
| USB Interface | Micro-USB to TTL (CH340C) |
| Digital I/Os | 16 GPIO pins available |
| Analog Inputs | 1 pin (A0, 0-3.3V) |
| Flash Memory | ~4 MB (module dependent) |
| Form Factor | Breadboard friendly width |
Usage Note: A high-quality USB cable is required to ensure sufficient current delivery. For first-time use, you may need to run the command file.remove("user.lua") via the serial monitor (baud rate 9600 or 115200) to clear default scripts.
You might also like