Meanwhile, a Raspberry Pi can serve as the core of Home Assistant, and you can use the MQTT/Serial Communication/MySensors add-ons to connect the HASS instance with the Arduino weather station ...

Called nexus433, it uses a cheap 433 MHz receiver connected to the Pi’s GPIO pins to receive data from environmental sensors using the popular Nexus communication protocol.

Since Home Assistant is my be-all-and-end-all service for managing my smart gadgets, I’ve paired my Raspberry Pi MQTT broker with the HASS instance to simplify automating my IoT paraphernalia.