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Add arp-oled: live kernel ARP-state viewer for the OLED - #11

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joelhans merged 2 commits into
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joelhans/oled-arp-state-display
Jun 30, 2026
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Add arp-oled: live kernel ARP-state viewer for the OLED#11
joelhans merged 2 commits into
mainfrom
joelhans/oled-arp-state-display

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@joelhans joelhans commented Jun 30, 2026

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A read-only viewer that mirrors the peer node's kernel ARP/neighbour (NUD) state on the SSD1306, polling ip neigh once a second. Drive the transitions yourself from another shell and watch the OLEDs follow.

# on one Pi (at 10.10.0.1, assuming its peer is at 10.10.0.2)
/opt/little-internet/venv/bin/python3 ~/arp-oled/arp_oled.py

# on the other Pi (at 10.10.0.2)
/opt/little-internet/venv/bin/python3 ~/arp-oled/arp_oled.py --peer 10.10.0.1

@joelhans
joelhans merged commit 9cffdf9 into main Jun 30, 2026
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