Quicklinks

die Schittstellen können auch auf andere Rechnern implementiert sein

Generelles was im Zusammenhang Steuerung stehen mag...

UART - Universal Asynchronous Receiver Transmitter
FTDI
FT245
RS232 - 9-PIN - seriell
PWM - puls weiten modulation
Tx/Rx - Transmitter- Receiver-Exchange

GPIO

GPIO - General Purpose Input/Output)
http://en.wikipedia.org/wiki/General-purpose_input/output

Embedded applications (for example, Arduino, BeagleBone, PSoC kits and Raspberry Pi) make heavy use of GPIO for reading from various environmental sensors (IR, video, temperature, 3-axis orientation, and acceleration), and for writing output to DC motors (via PWM), audio, LCD displays, or LEDs for status.

GPIO capabilities may include:

• GPIO pins can be configured to be input or output
• GPIO pins can be enabled/disabled
• Input values are readable (typically high=1, low=0)
• Output values are writable/readable
• Input values can often be used as IRQs (typically for wakeup events)

PWM - Pulse-width_modulation

Programming GPIO

http://iqjar.com/jar/programming-the-raspberry-pis-gpio-pins-from-command-line-and-bash-script/
commandline tool: gpio

gpio mode 5 out
gpio write 5 1

To turn the LED off:
gpio write 5 0

To read the value of a pin, set it to input mode and get its value:
gpio mode 5 in
gpio read 5

https://sites.google.com/site/semilleroadt/raspberry-pi-tutorials/gpio (diverse Möglichkeiten)

http://stackoverflow.com/questions/25541026/access-gpio-pins-of-pia-from-pib (über Netzwerk?)