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lokanratum #1 07/04/2014 - 15h17

Class : Apprenti
Posts : 7
Registered on : 05/04/2014

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Hi everyone,

I tried to build my device with the document "3dotscpEN.pdf".

I got almost the same device but it doesn't work.

Can anyone help me, please ?

Here are the details :

- 3 leds SFH485P
- 3 resistors (22 ohm)
- 1 wire clothes hanger
- 2 AA batteries (1,5 V each)
- 1 batterie holder with Switch

And some pictures :

https://picasaweb.google.com/lh/photo/-uLwskgwAq8n3S1f8RtbQNMTjNZETYmyPJy0liipFm0?feat=directlink

https://picasaweb.google.com/lh/photo/T5l2nZKp9_XbP-reRh1KaNMTjNZETYmyPJy0liipFm0?feat=directlink[/url]

https://picasaweb.google.com/lh/photo/4qF1edZmzFyk81N7JOWtBtMTjNZETYmyPJy0liipFm0?feat=directlink

https://picasaweb.google.com/lh/photo/yJjK0pk-LeiQyJUDW5RjvdMTjNZETYmyPJy0liipFm0?feat=directlink

Lokan
Edited by lokanratum on 07/04/2014 at 15h22.
Steph #2 07/04/2014 - 16h20

Class : Moderator
Posts : 656
Registered on : 16/11/2007

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Hi,

did you check the polarity of every LED?
Did you check the LEDs with your mobile, webcam, camera... you can't see ir-light with your eyes.

http://forum.free-track.net/index.php?showtopic=1856&message=19931
Jaeger55 #3 07/04/2014 - 22h20

Class : Apprenti
Posts : 21
Registered on : 10/09/2010

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What are you using to complete the neg side of the circuit? The wire coathanger?
benmeijer #4 08/04/2014 - 15h41

Class : Habitué
Posts : 208
Registered on : 19/07/2008

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lokanratum @ 07/04/2014 - 17h17 a dit:

Hi everyone,

I tried to build my device with the document "3dotscpEN.pdf".



Where did you find that document? All you need you can find here:
http://www.free-track.net/forum/index.php?showtopic=1856

The polarity off the led SFH485P is a bit tricky.
Check: the flat side must be negative or ground.

When you check the leds with your mobile or camera (as Steph already wrote) be sure to darken your room!
lokanratum #5 09/04/2014 - 08h23

Class : Apprenti
Posts : 7
Registered on : 05/04/2014

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Hi everyone,

what a dumb guy I am ! I've not checked the leds with my smartphone. It's done and it works !!!

Thank you very much for your help.

Now I'm trying to put the right settings. It's really difficult. Besides, Free-track has many bugs.

Lokan
deggial2005 #6 18/06/2014 - 10h41

Class : Apprenti
Posts : 7
Registered on : 16/06/2014

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I can confirm FreeTrack is working flawlessly as long as you have the right hardware setup. The only issues I have is webcam not saving its own settings properly.

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