physical computing with the raspberry pi
DESCRIPTION
Physical Computing with the Raspberry Pi. Presentation by John Lamb Trainee Master Teacher Monkwearmouth Academy. Audio. Composite video. USB. Ethernet. GPIO. HDMI. Raspberry Pi Hardware. Power. Breakout Boards such as the pi cobbler allow you to use breadboard to build projects. - PowerPoint PPT PresentationTRANSCRIPT
Physical Computing With The Raspberry Pi
Presentation by John LambTrainee Master TeacherMonkwearmouth AcademyPhysical Computing with the Raspberry Pi
HDMIComposite videoEthernetUSBAudioPowerGPIO
Raspberry Pi Hardware
Breakout Boards such as the pi cobbler allow you to use breadboard to build projects
They are relatively cheap and great for projectsbut dont protect the GPIO pins
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 inputs8 outputs2 relays
0V5V
Making the Piface classroom friendly
The final unit safe to work on
Classroom Friendly UnitTraffic lights using scratch
7 segment display using Python
1 each
Interest and enthusiasm Sensors dont have to cost muchAn 8 input capacitive touch sensor can be bought for 1.99. The same technology as Makey Makey but much cheaper
Using the Data pinsThese bypass the Piface and go directly to the GPIO pins via a protected circuitThis is needed for speed with some sensors as the Piface is too slow.
Low cost sensors/motors e.g.TemperatureHumidityPressureDistance(Ultra sound)Servo/Stepper motors for robotics
Maplin Robotic Arm 30 each (watch out for offers every so often)
Programmable with Scratch & Python thanks to an open sourcemodule called PYusbhttp://sourceforge.net/projects/pyusb/
Robotics
http://scratch.mit.edu/projects/17770365/13
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