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RSS > LEDs not lighting up when testing

kwmcken	#1 22/11/2014 - 21h37 Top
Class : Apprenti Posts : 3 Registered on : 22/11/2014 Off line	So I tested my circuit before soldering all the connections and glueing the LEDs in place, and they do not light up. Using overpriced Radioshack 5mm IR LEDs (1.2V Forward voltage, 100mA forward current) and 18 Ohm 1/4V resistors. Power supply is 2 AA batteries (3V). Wiring is in parallel. In the pics, top portion is negative line and the bottom is positive. http://i.imgur.com/M7EjFR6.jpg http://i.imgur.com/G84Se3U.jpg (Sorry for not adding pics directly, the resolution was weird and adding the link was not working for some reason :D) Edited by kwmcken on 22/11/2014 at 21h39.
Steph	#2 23/11/2014 - 15h55 Top
Class : Moderator Posts : 656 Registered on : 16/11/2007 Off line	Hi, did you check it with a mobile (no iPhone) or a webcam. You can't see ir-light light with your eyes.
kwmcken	#3 23/11/2014 - 16h50 Top
Class : Apprenti Posts : 3 Registered on : 22/11/2014 Off line	Steph @ 23/11/2014 - 15h55 a dit: Hi, did you check it with a mobile (no iPhone) or a webcam. You can't see ir-light light with your eyes. I did, I tested it with an iphone and a modded ps3eye which was tested to be able to see IR
Steph	#4 25/11/2014 - 18h25 Top
Class : Moderator Posts : 656 Registered on : 16/11/2007 Off line	hm, ok... I can't really see the sens of the leds on the photos, did you connect them like this?: If you got a multimeter check your build with it.

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