Build guide <here>
The Pocket LAN Tester Kit is a small portable Ethernet diagnostic tool.I built it because basic LAN troubleshooting often needs a laptop or an expensive professional tester. For quick checks, I wanted a small device that can simply be plugged into a network port and show the most important information directly on a display.The device checks Ethernet link status, DHCP, IP address, gateway, DNS and basic internet connectivity. The result is shown on a small OLED display, so the user can quickly see if the network connection works.
The project combines PCB design, embedded firmware, Ethernet communication, OLED display output and a 3D printed enclosure. It is designed as a DIY kit for makers, students, homelab users and people who want a simple network test tool.The current prototype already supports the main test functions. The next steps are improving the PCB layout, enclosure, documentation and preparing a small kit version.You can buy the kit <HERE>
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