What is PiFace™ Digital?
Pi-Face Digital plugs directly onto the top of your Raspberry Pi, and allows you to sense and control the real world. Detect switch states, for example from a door sensor, a pressure pad or any number of other switch types. Then write your own software for Raspberry Pi that determines how to respond to that switch state. You can drive outputs to power motors, actuators, LEDs or anything you can imagine.
What is Gertboard™ Assembled
Gertboard is the ideal add-on for Raspberry Pi. Designed by Gert van Loo, it is a flexible experimenter board that connects your Raspberry Pi out to the physical world, allowing you to detect and respond to external physical events. Detect and output analogue voltages. Drive powerful motors. Detect switch presses. Illuminate LEDs and drive relays. Jumper cables allow you to hook up different parts of the circuit in many different ways, allowing total flexibility. All controlled by your own Raspberry Pi.
Unlike the Gertboard Kit, this new version of the Gertboard is fully assembled and ready to use out-of-the box.