Description
Product Description
The NodeMCU V3 (4MB External Antenna Edition) is a premium IoT development platform engineered for applications that demand both large-scale firmware storage and superior wireless range. While standard boards are limited by integrated PCB antennas, this specialized version features an onboard IPEX (U.FL) connector, allowing users to attach high-gain external antennas to penetrate walls or bridge long distances.
Powered by the ESP8266 SoC and upgraded with 4MB (32Mbits) of Flash memory, this board can handle complex web servers, large SSL certificates, and extensive data logging tasks. The “V3” (Lolin-style) architecture utilizes the reliable CH340 USB-to-UART bridge, ensuring a stable “plug-and-play” experience for programming via the Arduino IDE, MicroPython, or Lua. This is the definitive hardware choice for industrial gateways, outdoor sensor arrays, and smart-home hubs located in signal-restricted areas.
Key Features
- Maximum Wireless Flexibility: Integrated IPEX (U.FL) port allows for the connection of external dipole or patch antennas to maximize signal gain and stability.
- Expanded 4MB Flash Memory: Four times the storage of standard modules, providing ample space for OTA (Over-the-Air) updates and complex filesystem storage.
- High-Stability CH340 Chipset: Industry-standard USB-to-Serial conversion with broad driver compatibility across Windows 10/11, macOS, and Linux.
- Full TCP/IP Stack Support: Native support for 802.11 b/g/n protocols; functions perfectly as a Station, SoftAP, or a mixed-mode repeater.
- Robust Peripheral Interface: Features 10 GPIOs, PWM, I2C, 1-Wire, SPI, and a 10-bit Analog-to-Digital Converter (ADC).
- Breadboard Compatible: The V3 Lolin form factor provides a wider, stable base for prototyping and direct integration into custom PCB projects.
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