Why W5500 in ESP32-S3 Zigbee Gateway? (Unofficial Firmware)
his unofficial firmware empowers the $15 ESP32-S3 board to function as a robust Zigbee gateway. Offloading internet connectivity to the W5500 Ethernet chip.
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Components
Hardware components
WIZnet - W5500
x 1
platformio - PlatformIO IDE
x 1
Arduino - Arduino IDE
x 1
Project description
Project Overview This project offers unofficial open-source firmware for the "ESP32-S3 1.77 Inch LCD W5500 Board" sold on AliExpress for approximately $15. This project is currently under very active development, with critical updates (such as PSRAM fixes) committed just 2-4 days ago (early Jan 2026). Given the lack of official software support from the hardware manufacturer, community user cristianprice analyzed the pin map and built a PlatformIO-based development environment. The core objective of this board is to build a high-performance Zigbee gateway at a low cost…
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