Hardware – the Pi

The production version of the home hub is running on a Raspberry Pi 2 with 1 GB of ram. The 4 cores and extra ram is helpful to run the PostgreSQL database, but it is probably possible to run the hub on a lower specification Pi. I have employed Ethernet networking, to connect to my home network, as wi-fi has not proved sufficiently reliable in my set-up. The usual caveats about using a properly sized power supply are particularly relevant for this project, as you may be providing power for additional sensors and relays.

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