Author Topic: ir radius  (Read 4507 times)

Offline wotifu

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on: April 16, 2010, 12:16:34 AM
is it possible to measure the size of the ir detected by the wiimote?

how can we vary the radius of the detected ir aside from varying the ir's distance from the sensor?

tnx..



Offline boonjin

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Reply #1 on: April 16, 2010, 12:45:45 AM

Hi,

The size of the IR blob can be detected by the Wiimote.

However, the reading is unreliable as a slight change of the orientation of the IR LED will cause the detected IR blob size to change. You can take a look at the specification of the IR LED to determine the power emitted at various angle.s If you are detecting the IR blob via a reflection, the size will vary even further.

Regards,
Boon Jin

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Offline wotifu

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Reply #2 on: April 17, 2010, 08:50:12 AM
can we use the detected size of the blob as a variable in programming?

tnx for the reply...  :)



Offline boonjin

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Reply #3 on: April 17, 2010, 08:46:00 PM
can we use the detected size of the blob as a variable in programming?

tnx for the reply...  :)

As mentioned in the previous response, you can use the size of the IR blob. However, it will be an unreliable source to be used to determine any distance related information.

Regards,
Boon Jin

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