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mainz #1 28/03/2014 - 15h12

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Hi all,

I'm building my first track and I'm having the kind of issues that for most of you will be easy to address.. forgive me I never did something of the kind.

I ordered the SFH 485 P leds but i'm having problems with the wizard, I don't know if I should input the values with " . " or " , " in Power Supply -> Voltage Value (V) and in Led -> Forward Voltage.

Since getting it wrong screws up the whole thing it seems important to know.

Also, if for example i have 2 rechargable batteries (1.2V) should i add them? Would it be 2.4V?

Supposing it is so, would these be the correct values?

Voltage Value (V):          2.4
Forward Voltage (V):     1.5
Forward Current (mA):   100

Also i read some of the guides on the forum and the most don't check against the wizard.. I'm really stuck with this resistor thing.

Any help is largely appreciated.
Stormrider #2 28/03/2014 - 17h06

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Did you see this post?
http://forum.free-track.net/index.php?showtopic=1856

Supposing it is so, would these be the correct values?

Voltage Value (V):          2.4
Forward Voltage (V):     1.5
Forward Current (mA):   100



yes it is correct.
mainz #3 29/03/2014 - 14h18

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Thank you so much that solved my problem and already bought everything.. looking forward to receive the leds and see if I can do it.
Stormrider #4 29/03/2014 - 14h27

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keep in mind, if your setup is ready.Ir light is invisible for the human eye.So if you don't see them light up, it's normal.Just check it with a webcam or camera of a smartphone. :D
Jaeger55 #5 03/04/2014 - 01h23

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Stormrider @ 29/03/2014 - 15h27 a dit:

keep in mind, if your setup is ready.Ir light is invisible for the human eye.So if you don't see them light up, it's normal.Just check it with a webcam or camera of a smartphone. :D



When I wasnt sure if the free track wasnt reading the IR lights, I pulled out the old camcorder with nightvision to troubleshhot.
mainz #6 15/04/2014 - 14h19

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Thakn you all it works like a charm! I made a cap but I had enough fun to go and build a clip too.. seems more confortable. Anyone knows what would be good measures?
Steph #7 15/04/2014 - 18h58

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Close to the default values, works fine:

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