Why Does the boneIO gen 2 DIN-Rail Dimmer Use a W5500 Instead of LAN8720?
boneIO's gen 2 dimmer moved to an ESP32-S3, which has no Ethernet MAC, so its shipping firmware declares a WIZnet W5500 on SPI in place of gen 1's LAN8720.
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Components
Hardware components
WIZnet - W5500
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Declared at line 33 of boneio-dimmer_gen2_8ch-v0_1.yaml in the manufacturer repository github.com/boneIO-eu/esphome as ethernet: type: W5500. Attached to the ESP32-S3 over SPI at 25 MHz with clk GPIO1
Project description
📌 The ESP32-S3 in gen 2 Has No Ethernet MAC, Which Rules Out the LAN8720 The boneIO ESP Dimmer LED gen 2 declares type: W5500 in its shipping firmware because the ESP32-S3 it moved to has no internal Ethernet MAC. A plain ESP32 has one, which let the first-generation dimmer drive an RMII PHY such as the LAN8720 over MDC, MDIO and a clock pin, and ESPHome's ethernet component documentation lists LAN8720 as "RMII, ESP32 only" against W5500 as an SPI part for ESP32 and RP2040. The same swap repeats across every gen2 product boneIO sells. boneIO is a hardware company in Łódź, Poland whose About…
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