Arduino

RFID-Reader

http://makecourse.weebly.com/week10segment1.html

Arduino als AVR-ISP (Programmer)

http://hardwarefun.com/tutorials/use-arduino-as-an-isp-programmer-to-program-non-arduino-avr-microcontrollers
http://arduino.cc/en/Tutorial/ArduinoISP
http://arduino.cc/en/Tutorial/ArduinoToBreadboard

Stuff

Build Arduino sketches from the command line (FreeBSD Ports)