I would say so...
It is just a really neat thing to have.
In my first test I blew up an IR LED (which was centimetres from my eye) in a matter of seconds.
I guess I should do more reading and less experimenting... I havent been more scared in years. It glowed orange and then a puff of smoke as it burn out. Removed the USB connection just in time- I could have faced a short soon after.
Perhaps I will buy the TrackIR headset, but use a webcam and FreeTrack to save money... I really dont like the idea of electronics going like this so close my face...
What sort of a resistor would be required to lower the voltage from 5V down to 4.5V so that it can be shared in series to 3 LEDs? Im not really sure when it comes to resistors what I need... edit: a 5.1Ohms is enough, apparently. 5V going through 3 LEDs, each at 1.5V and each with 100mA
THESE