Group buy/build of the Dangerous Prototypes USB Infrared Toy. http://dangerousprototypes.com/docs/USB_Infrared_Toy
Buy here: http://www.seeedstudio.com/depot/usb-infrared-toy-p-607.html?cPath=174
Basically a devices for sending and reading arbitrary IR signals over USB. Great for old school hacking. Sign up in the discussion if you want in.
BOM
Part\tValue
C1-C4\t0.1uF capacitor (0805)
C5,C6\t27pF capacitor (0805)
D1\tSmall signal diode (DO323)
IC1\tPIC 18F2550-i/so (SOIC28W)
ICSP\t0.1″ pin header (1×05)
J1\tUSB MINI-B jack (SMD)
Q1\t20MHz crystal (SMD/HC49UP)
R1\t10,000 ohm resistor (0805)
R2\t2700 ohm resistor (0805)
R3\t390 ohm resistor (0805)
R4\t180 ohm resistor (0805)
R5\t1000 ohm resistor (0805)
T1\tNPN transistor, hfe 30+, 200mA+ (0805)
I\tindicator LED (0805)
RX\t5volt 38kHz IR receiver (eg: TSOP38238)
TX\t~940nm, 20mA IR LED (5mm)
S1\tsmall tactile switch (optional)
PCB http://www.goldphoenixpcb.biz/special_price.php