AB Electronics UK Expansion HAT for Raspberry Pi

The Expansion HAT for Raspberry Pi is a versatile digital and analog expansion board. It allows connecting the Raspberry Pi to switches, lights, sensors, and many other devices giving a way to communicate with the outside world. The Expander Pi plugs onto the GPIO port on Raspberry Pi and can be securely fitted to the Raspberry Pi using the optional mounting kit. It is powered through the host Raspberry Pi using the GPIO port or via the on-board power connector. Extended pins on the GPIO connector allowing stacking the Expander Pi along with other expansion boards.