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4 Specifications
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The Vmarker IR-pen Touch™ has a ATMEL ATTINY861 processor 8Mhz with 8kB
flash, 512 Bytes RAM and 512 Bytes EEPROM.
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The touch-pads are measured by the processor. There are three touch area's, one
for the left-mouse-button, one for the right-mouse-button and one for the scroll-
function.
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With a touch of the surfaces, the IR LED is then controlled by the processor in a
way the Vmarker IR-sensor recognizes the corresponding function.
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An integrated circuit regulates the current to the IR-LED.
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A second red LED indicates when the IR-LED is switched on.
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The IR-pen is powered by two AA-batteries. Its possible to use rechargeable
batteries.
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With an on/off switch it is possible to switch off the IR-pen completely.
5 Trouble shooting
5.1 The IR-pen does not function
The Vmarker IR-sensor does not respond to the IR pen. Possible the Vmarker IR-pen
does not work properly. Verify that the IR LED of the IR-pen works. You can do this by
using a digital camera, from your mobile phone for example, and look with this at the IR-
LED of the IR-pen. When you touch one of the touch-pads you can clearly see the IR LED
light up when you clearly see the button or touch button control.
When this is not the case possible reasons are:
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The IR-pen is not enabled.
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The batteries are wrong, check the polarity of the batteries.
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The batteries are empty, replace the batteries.
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The oriëntaton of the IR pen to the surface is not good. Adjust the angle of the IR-
pin towards the surface, also make sure there is nothing between the IR LED and
the Vmarker IR-sensor.
Vmarker IR-sensor USB
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