The Cluster HAT (Hardware Attached on Top) interfaces a (Controller) Raspberry Pi A+/B+/2/3/4 with (up to) 4 Raspberry Pi Zeros (1.1/1.2 or W) configured to use USB Gadget mode is an ideal tool for teaching or testing small scale clusters.

• USB Gadget Mode: Ethernet and Serial Console.
• Onboard 4 port USB 2.0 hub.
• Raspberry Pi Zeros powered via Controller Pi GPIO
• Individual Raspberry Pi Zero power controlled via Controller Pi GPIO (I2C).
• Connector for Controller Serial Console (our USB Serial Adaptor or a Sparkfun FTDI Basic).
• Controller Pi can be rebooted without interrupting power to Pi Zeros (network recovers on boot)
• 2 pin (0.1" pitch) header for FAN (200mA max, controlled by GPIO BCM18).

Cluster HAT Models

Whilst the Original ClusterHAT can be used with all 40-pin Raspberry Pi models as the controller when using a Pi 4 it might be wise to use the ClusterHAT HIGH variant to allow for more airflow to the Pi 4*. It can be used with the (Pimoroni) Pibow Coupe 4 cases and FanSHIM (you may want to carefully snip the mounting hole off).

• The ClusterHAT HIGH will not fit in the ClusterHAT case from ThePiHut/ModMyPi

ClusterHAT Original

• 1x ClusterHAT PCB*
• 4x 12mm M2.5 standoff
• 8x 6mm M2.5 screw
• 4x stick on foot
• USB Cable*

ClusterHAT HIGH

• 1x ClusterHAT HIGH PCB*
• 4x 24mm M2.5 standoff
• 8x 6mm M2.5 screw
• 4x stick on foot
• USB Cable*
• (includes upgrade to small parcel postage)

(* PCB/Spacer/LED/USB Cable colour may vary)

Full details can be found on https://clusterhat.com/

The following may be required but are not supplied.

• 1x Controller Raspberry Pi (A+/B+/B2/B3/B4)
• 1-4x Raspberry Pi Zero (v1.1/1.2/W)
• 2-5x Micro SD memory card
• Pi Power Supply (2-3A capable)
• Network Cable