FreeTrack kit / set with Osram SFH485P

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FreeTrack kit / set, battery-powered, with infrared LEDs Osram SFH485P. A similar set, but powered from the USB port: FreeTrack kit / set USB with Osram SFH485P

Included are:

3 x IR LEDs Osram SFH485P; 3 x 30 Ohm resistors, 1/4 W; 1 x battery-holder for 2 x AA with on / off switch; 100 cm isolated wires (red and blue); batteries and tape are not included.

If you use normal batteries (2*1.5 V = 3.0 V), feel free to use resistors (metal film or carbon film) between 20-40 Ohm, 1/4 Watt E24, for example:

22 Ohm ---> 70 mA ---> LED is very bright;
30 Ohm ---> 50 mA ---> LED is bright;
39 Ohm ---> 40 mA ---> LED is medium.

If you use rechargeable batteries (2*1.2 V = 2.4 V), feel free to use resistors (metal film or carbon film) between 10-25 Ohm, 1/4 Watt E24, for example:

13 Ohm ---> 70 mA ---> LED is very bright;
18 Ohm ---> 50 mA ---> LED is bright;
24 Ohm ---> 40 mA ---> LED is medium.


For head movement tracking devices (Free Track) as per the designs (and LED type recommendation) provided on the website:

These devices can be used in conjunction with a standard WebCam, for example, to enable a disabled person to control a computer, or to simply improve the use of flight simulation software, especially the excellent IL-2 series, giving a highly-realistic sensation of flying:

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Delivery weight: 0.26 g
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