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Presentation by John Lamb Trainee Master Teacher Monkwearmouth Academy Physical Computing with the Raspberry Pi

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HDMI Composite video Ethernet USB Audio Power GPIO Raspberry Pi Hardware

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Breakout Boards such as the pi cobbler allow you to use breadboard to build projects They are relatively cheap and great for projects but dont protect the GPIO pins

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One of many add-on boards which offer GPIO protection and extra functionality Developed by the University of Manchester with the education sector in mind 8 inputs 8 outputs 2 relays 0V 5V

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Making the Piface classroom friendly

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The final unit safe to work on

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Classroom Friendly Unit

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Traffic lights using scratch

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7 segment display using Python 1 each

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Interest and enthusiasm

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Sensors dont have to cost much An 8 input capacitive touch sensor can be bought for 1.99. The same technology as Makey Makey but much cheaper

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Using the Data pins These bypass the Piface and go directly to the GPIO pins via a protected circuit This is needed for speed with some sensors as the Piface is too slow. Low cost sensors/motors e.g. Temperature Humidity Pressure Distance(Ultra sound) Servo/Stepper motors for robotics

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Maplin Robotic Arm 30 each (watch out for offers every so often) Programmable with Scratch & Python thanks to an open source module called PYusb http://sourceforge.net/projects/pyusb/ Robotics http://scratch.mit.edu/projects/17770365/

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Use the Python API to write code to control the world. The same script can switch on LEDs or other OUTPUTS. INPUT switches can be used as control