So, I recently got back to an old project and started messing around with IR. For IR, one needs leds. So I dug up my few year old bag of them, static bag, but sadly all of them seemed to have died. That in itself was weird, but I figured that could happen.
So, I ordered up some new ones, but quite a few of those are also not working it seems. That was starting to get weird. So, I made up a simple circuit, 30 ohm, 5 volts, 1 Led, and started testing the leds using a camera. Also testing a few red leds to make sure the circuit worked. So far the results have been underwhelming, I can't get much of a reaction out of the leds.
I already found out that for SOME of the leds I got, the switched anode/cathode, having the long leg be the cathode, that cleared somethings up, but, I am sceptic, what are the chances that so many leds are broken out of the bag? Is there a way to test IR LEDS, except the camera ones. I now have a test circuit with 30 ohm, the ir and a regular led in circuit. But I am kinda pulling my hairs out over this.
Edit: Of course, all this is most likely to my knowledge status, lack of it, on the subject of electronics, but Google 'testing ir led' and you get a whole bunch of use your camera stuff for remote controls. So that's not helpful. Hope the you guys can be.