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Why WLED Developers Choose W5500: Pin Efficiency Over Speed

WLED uses WIZnet W5500 for stable Ethernet. Its SPI interface saves GPIO pins, making it more efficient than RMII.

Grace_Koo

Published January 05, 2026

Original author: limpkinOriginal source (new tab)

Why WLED Developers Choose W5500: Pin Efficiency Over Speed

Components

Hardware components

WIZnet parts

Project description

The cover image of this article was generated by Gemini. 3-Line Key Summary Market Trend: As the ESP32-based open-source lighting platform (WLED) is utilized in professional and commercial installation areas, the introduction of wired Ethernet is required to overcome the communication instability of Wi-Fi. Reason for Selection: Although slower than competitor chipsets (RMII), the W5500 (SPI) was adopted for its advantage in hardware resource efficiency by using fewer GPIO pins. Scalability: The scope of application is expanding beyond personal DIY to medium/large-scale media art and…

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