How Does a W5500 Network Toolbox Diagnose Ethernet from an M5Stack CoreS3?
Jesse Hills turns an M5Stack CoreS3 and W5500 PoE base into a touchscreen tester for link, DHCP, IPv6 and ping, after fixing a shared SPI bus in ESPHome.
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Components
Hardware components
WIZnet - W5500
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Ethernet controller in M5Stack Base LAN PoE v1.2 (K012-C-V12). Shares the CoreS3 SPI bus with the LCD: CS GPIO9, RST GPIO7, INT GPIO14, 20 MHz.
Project description
📌 What Does Network Toolbox Tell You About an Ethernet Socket? Jesse Hills is a developer at the Open Home Foundation in Wellington, New Zealand, who works on ESPHome, the open firmware framework used widely with Home Assistant. His Network Toolbox project turns an M5Stack CoreS3 touchscreen and an M5Stack Base LAN PoE v1.2 (SKU K012-C-V12, built around a WIZnet W5500) into a handheld Ethernet tester. The repository describes the goal in one line: "Plug into an unknown network and see the link, lease, addressing and reachability it gives you." Original Network tab capture: Jesse Hills /…
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