TrackIR is very helpful, but pricey, so i decided to make my own. The modified camera and clip body is done.
I am trying to make a Trackir clip and after assembly i found out the LEDs do nothing.
LEDs used: https://www.conrad.cz/p/osram-sfh-485-p-ir-reflektor-880-nm-40-5-mm-radialni-153831
Technical specification: https://asset.conrad.com/media10/add/160267/c1/-/gl/000153831DS01/list-technickych-udaju-153831-osram-sfh-485-p-ir-reflektor-880-nm-40-5-mm-radialni.pdf
Originally i used 18 Ohm resistors, (the idea was for the LEDs not to be too bright.) After i tested them, i instaled 10 Ohm resistors. They are salvaged from old electronics, i think they are 10 Ohm based on the markings: brown, silver, black, black, brown. The 10 Ohms come from a led resister calculator: http://ledcalc.com. The whole thing is powered by two AAA batteries.
My soldering isn’t very good, but should be good enough. The only think i can think of is that i chose the wrong LEDs.