ESP32-S3 LLDP Monitor with W5500 Ethernet, Touch UI, and On-Device Ping
A handheld ESP32-S3 diagnostic tool that captures LLDP frames over W5500 Ethernet, parses neighbor and VLAN data, and displays it with touch-driven ping tests.
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Components
Hardware components
WIZnet - W5500
x 1
Espressif - ESP32-S3
x 1
Project description
Overview This repository is an embedded network diagnostic tool built around an ESP32-S3, a WIZnet W5500 Ethernet path, a small SPI display, a CST816 touch controller, and an LVGL-based interface. Its visible feature set is narrow but practical: collect LLDP data from the attached Ethernet segment, show summary and detail views, list VLAN information when present, and let the operator run ping tests from the same device. Main Content Image generated by gpt The core design choice is to capture LLDP at the Ethernet frame level instead of treating the device as only an IP endpoint. In the…
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