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FreeTrack Forum > FreeTrack : English Forum > Support : Tracking System > Resistor

RSS >  Resistor, Cookie?
XwawawaX #1 04/10/2008 - 17h31

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Registered on : 04/10/2008

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Hello,

How much watts should resistor have?
XwawawaX #2 04/10/2008 - 18h26

Class : Apprenti
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Registered on : 04/10/2008

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Ok...I'm going to buy:

12v battery
1/4w 270 Ω resistor
4x  Ø5mm red diode 1500mcd 30°

Then wire:
12v battery minus to resistor then to led's.
12v battery plus to led's.

Is this ok?
babasior #3 04/10/2008 - 19h28

Webmaster (admin)
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Registered on : 09/07/2007

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check here :

http://www.free-track.net/english/hardware/calcled/

and ask result to Tristan68 for check it !
Babasior.
FreeTrack Online / www.Free-Track.net
tristan68 #4 05/10/2008 - 18h34

Electronicien en chef
Class : Electronicien en chef
Posts : 651
Registered on : 10/07/2007

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Hello XwawawaX

First thing : why 4 leds ???

The latest Freetrack settings use 3 leds or 1 led , not 4.

Can you tell me the led characteristics, please ?
(I mean , forward voltage and forward nominal current).

cya

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