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| Parameter | Specification |
|---|---|
| Board Name | NodeMCU ESP8266 V3 |
| Main MCU | ESP8266EX |
| Wi-Fi Standard | IEEE 802.11 b/g/n |
| Frequency | 2.4 GHz |
| USB Interface | CH340G USB-to-Serial Converter |
| Flash Memory | 4 MB |
| CPU Clock | 80 MHz (up to 160 MHz) |
| Operating Voltage | 3.3V |
| Input Voltage (VIN) | 4.5V – 9V (10V max) |
| GPIO Pins | 10+ Digital I/O |
| ADC | 1 × 10-bit ADC (A0) |
| Communication Interfaces | UART, SPI, I²C, PWM, 1-Wire |
| Wi-Fi Modes | Station (STA), Access Point (AP), STA+AP |
| Security | WPA / WPA2 |
| USB Connector | Micro USB |
| Antenna | On-board PCB Antenna |
| Programming Support | Arduino IDE, Lua, MicroPython |
| Operating Temperature | -40°C to +125°C |
| Dimensions | Approx. 49 × 26 mm |
The NodeMCU V3 ESP8266 CH340 Board is a compact and low-cost Wi-Fi development board based on the ESP8266 ESP-12E/ESP-12F module, designed for IoT (Internet of Things) prototyping and embedded wireless applications. It comes with built-in 802.11 b/g/n Wi-Fi connectivity, enabling devices to connect easily to local networks and cloud platforms for data communication and remote control.
Key Features:
- ESP8266 Wi-Fi SoC with integrated TCP/IP stack
- CH340G USB-to-Serial interface for plug-and-play programming
- Supports Arduino IDE, Lua, and MicroPython
- Built-in PCB antenna
- OTA (Over-The-Air) firmware updates
- GPIO, PWM, ADC, I²C, SPI, and UART support
Packing List Includes:
1 × NodeMCU ESP8266 V3 Lua CH340
