Integrate a Raspberry Pi Pico W controlled Waveshare Pico-Relay-B into Home Assistant
Pico-Relay-B: https://www.waveshare.com/pico-relay-b.htm
You will need the folder umqtt and its contents from here: https://github.com/micropython/micropython-lib/tree/master/micropython/umqtt.simple
Fill in the secrets.py values for your WiFi connection and MQTT broker then you're all set
I plan to add the ability to locally toggle the relays but haven't done that bit yet
Might have a tinker with the buzzer next