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November 5, 2026$Hacking Apartment Wallpads: From RS485 Packet Sniffing to Ventilation (Fan) Reverse Engineering
Anchored by two USB dongles (RS485 & Zigbee) on a Home Assistant host, here is how I sniffed an apartment's closed serial bus and reverse-engineered an undocumented 8-byte ventilation protocol.
#HomeAssistant#RS485
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