Hi Rui I was wondering if I could use the raspberry pi zero vs raspberry pi as the mosquito broker?
Ive never used either but the price range is significantly different.
Yes. The Mosquitto MQTT broker can be installed in any Raspberry Pi or any computer. You can even get started with Mosquitto on Windows/Mac: https://mosquitto.org/download/
The Raspberry Pi Zero can definitely run Mosquitto broker, but it’s slightly different to establish the first Wi-Fi configuration with RPi Zero and I don’t have the full instructions for that board. But if you search “how to setup wi-fi with Raspberry Pi zero”, you’ll be able to find how to do it.