You will also need a power supply, and I recommend using only the official one.

I do not recommend older models than the Raspberry Pi 4 Model B (highly recommended) or Raspberry Pi 3 Model B+.

To get started, you'll need the following: This comprehensive guide will walk you through the process of setting it up using the powerful Raspberry Pi 4 Model B. I’ve done this before on the Arduino platform and it works well.With your newfound knowledge of Home Assistant and the necessary hardware, it's time to put it into action. Rather than install and maintain multiple instances or extend HA, it’s probably cheaper, faster, better to craft a quick Python script for the Pi that connects to the MQTT component. I’m running HA on a VM, not a Pi so there’s nowhere to physically plug the Enviro pHAT. I was also wondering where you put the IP address and what code you run on the Pi to get them talking. Where hostname: is the configuration option allowing for multiple device targets, and rpi-zero-one and rpi-zero-two are the hostnames of each of the Pi Zero’s on the network I’d like to be able to do something along the lines of: sensor: In the above scenario both the Zero’s are using the GPIO on their respective device though there are no options in either of the setups to allow me to select/target the device

Pi Zero W - Outside in the garage controlling my garage door via Raspberry Pi Cover.Pi Zero W - Outside on the patio connected to a Enviro pHat.

Pi 3 - This Pi would be in my study, indoors and running HASS.Here’s what I’m thinking I’d like to do with 3 x Raspberry Pi’s ( 1 x Pi 3 & 2 x Pi Zero W) I want to be able to have many Raspberry Pi’s connected to the network with only a single instance of HASS. Theoretically that could be an option, though I’m hoping for a much simpler solution:

Home assistant on pi zero