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Messages - dr matt

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IR Pens / Re: Vishay TSAL6400 in the UK in smal quantities?
« on: February 21, 2009, 03:16:14 PM »
Another option is to buy a ready-made pen - for about 10UKP

IR Pens / Re: backwards facing pen?
« on: February 21, 2009, 03:13:56 PM »
yes, you definitely need a short pen to maintain accurate tracking. It needs some adapting to get used to the required technique, but after a few minutes I found I could use it very easily and it then seems to be straightforward. A major plus is that the Wiimote gets a direct view of the IRLED, so the signal detected is strong.


IR Pens / backwards facing pen?
« on: February 20, 2009, 04:19:35 PM »
Hi Folks,

Has anyone tried using a backwards facing pen - i.e. one where the IRLED is on the back of the pen facing away from the board and towards the Wiimote, rather than using the IRLED touching the board. I tried a bit of improvisation today and it seemed to work well, so long as the "pen" was only short so that the distance between the board and the IRLED was short. I seemed to get very accurate tracking and much better handwritten text this way.

Anyone else tried this?

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