NodeMCU V3 ESP8266 ESP-12E Development Board

About this product

Open-source IoT development board based on ESP8266EX microcontroller with built-in 2.4GHz WiFi and 4MB flash. Features CH340 USB-to-serial converter and breadboard-friendly pin headers. Suited for IoT prototyping, automation, and wireless sensor projects with Arduino IDE, Lua, or MicroPython.

Arduino, ESP32, Raspberry Pi and other microcontroller and single-board computer platforms for embedded, IoT and edge AI projects.

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Specifications

Microcontroller

ESP8266EX (ESP-12E)

Operating Voltage

3.3V

Input Voltage

4.5V to 9V (via VIN) or 5V (USB)

Clock Frequency

80MHz / 160MHz

Flash Memory

4MB

Digital I/O Pins

11 (PWM, I2C, SPI, UART)

Analog Input

1 x 10-bit ADC

WiFi

802.11 b/g/n 2.4GHz