MAC-scan-W5500 :Pocket Ethernet Identifier with e-Paper
Plug in an RJ-45 cable and the MAC address of the connected device appears on the e-paper screen within 5 seconds.
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Components
Hardware components
WIZnet - W5500-EVB-Pico
x 1
Project description
Project Overview In the field, answering "what device is connected to this port?" usually means pulling out a laptop, manually setting an IP, logging into a switch CLI, or hauling out dedicated network analysis equipment — a process that takes several minutes at best. MAC-scan compresses that entire process into 5 seconds. It is a pocket-sized network diagnostic tool that combines the WIZnet W5500's MACRAW socket mode, an RP2040 MCU, and a low-power 2.66-inch e-paper display. The moment a cable is plugged in, the tool automatically detects link-up, extracts the source MAC address from the…
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