Many of us hacker types with some hardware knowledge and in-vehicle experience would love to get into home automation, but the learning curve can be quite steep. If you are looking for a hackable starting point; something to deploy, learn and develop later, so look no further than the PicoW Home Assistant Starter project from [Danilo Campos].
The project is based on the arduino-pico core, which supports a whole stack of RP2040-based boards, so you don’t need to limit yourself to the “official” Pico-W, as long as you have a network work, Wi-Fi or other. Integration is provided by the arduino-home-assistant library, which acts as a bridge between your sensors and other widgets, MQTT, and therefore the network beyond. Events and sensor data on the endpoint are aggregated with MQTT and published to the broker via the provided network, all with minimal upfront effort. Once you have basic connectivity to your Home Assistant instance working, there are plenty of code samples in the arduino-home-assistant GitHub page to help you connect to whatever takes your fancy.
Turns out we’ve got quite a bit of HA covered on these fair pages, like, for example, these adorable automated blinds. Another hack uses load cells under the legs of the bed to detect if someone is in bed or not, and if that’s not your thing, maybe your idea of a home assistant looks a bit like more to this one?