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	PMaff	2011-07-22 , 15:18
	Posts: 361 \| Thanked: 219 times \| Joined on Sep 2010	#16

Originally Posted by hatem0

IrDA in N900 is only transmitter, so you cannot receive the return signal

One mentioned the speed of the IR light and the speed of the N900.

Beside that the camera "can see" the IR blinking of a remote control in visible light (I do not know why this is the case). Just try to make
a photo of a remote control's IR transmitter in action.

So you could mount a mirror at the wall and measure the time
N900 IR -> mirror -> N900 camera.
The problem will be the focusing on the tiny blinking dot and the
speed to measure.

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