PiFace Digital is designed to plug on to the GPIO of your Raspberry Pi, allowing you to sense and control the real world.

With PiFace Digital you can detect the state of a switch, for example from a door sensor, a pressure pad or any number of other switch types. Once this state has been detected, you can 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.

My experiences with PiFace

When I first got my Pi I also got a PiFace. My first try with Piface was pretty disastrous. I thought the whole point of relays is that you can use a separate power source for your motors? So I attached a battery that was too powerful for Piface and Pi and both were fried. I should dig them both out as there's gonna be loads of recyclables in them. So pleased that they are relativly inexpencive.

Piface which stands for 'Raspberry PI interFACE', is probably more useful than I have indicated, I should have read the instructions. PiFace fits directly on top of Raspberry Pi via the GPIO interface. GPIO stands for General Purpose Input Output.

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