dev-smarthome https://dev-smarthome.space/ Notes on sensors, firmware, and the house they run in. en Mon, 28 Sep 2026 09:00:00 GMT Matter over Thread, from the bench https://dev-smarthome.space/posts/matter-thread.html https://dev-smarthome.space/posts/matter-thread.html Mon, 28 Sep 2026 09:00:00 GMT A weekend with a border router, a sleepy end device, and a dataset I should have backed up first. MQTT discovery for a board I etched myself https://dev-smarthome.space/posts/mqtt-discovery.html https://dev-smarthome.space/posts/mqtt-discovery.html Thu, 18 Jun 2026 09:00:00 GMT Retained birth messages, a stable unique id, and why the device registry stopped duplicating the node. A Home Assistant integration for a ventilation board https://dev-smarthome.space/posts/ventilation-integration.html https://dev-smarthome.space/posts/ventilation-integration.html Mon, 09 Mar 2026 09:00:00 GMT The controller speaks a short serial protocol. A custom integration was less fiction than a pile of template sensors. A Zigbee2MQTT converter for a nameless switch https://dev-smarthome.space/posts/zigbee-converter.html https://dev-smarthome.space/posts/zigbee-converter.html Fri, 21 Nov 2025 09:00:00 GMT Four gangs, one Tuya datapoint map, and an external converter that stops treating every press as a battery report. An ESPHome component for a CO2 sensor https://dev-smarthome.space/posts/co2-esphome.html https://dev-smarthome.space/posts/co2-esphome.html Thu, 14 Aug 2025 09:00:00 GMT SCD41 on a quiet wall, one sample a minute, and the calibration mistake that made the living room look like a brewery.