If you’ve been following my previous adventures in home automation, you know I’ve been sliding down the Zigbee rabbit hole for a while. It all started with getting my hands dirty tracking frames in Zigbee-Sniffing unter OpenBSD: Deep Dive mit dem TI CC2531. Out of curiosity, I got myself a Zigbee Coordinator and wrote about connecting it to an automation platform in Zigbee Home Automation auf OpenBSD: Sonoff Dongle-M und openHAB.

Recently, I picked up a batch of surplus thin clients that turned out to be the absolute perfect fit for a dedicated home controller. Here is how I built a robust, isolated smart home gateway using OpenBSD 7.9-snapshot, Zigbee2MQTT, Mosquitto, and openHAB.