Hardware Architecture - cjus/hydra-cluster GitHub Wiki

The cluster consists of three Raspberry Pi 3’s, four Raspberry Pi Zeros and one Arduino Mini Nano which is part of a temperature display module.

The Pi Zeros are connected via a cluster hat to a host Pi 3. The three Pi 3’s are connected via Ethernet on a 5 port switch. Power to the Raspberry Pi’s is delivered via micro-usb connectors to a USB power hub.

A 320x480 TFT display is connected to a Pi 3 in order to display local cluster stats.