LIGHT FROM TOMORROW
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| AUGUST 2006: |
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| [GMT-7] San Jose, California |
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| [GMT+13] Kingdom of Tonga |
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The system we are using
to send light from tomorrow has been specially designed and
built for us by Robin Spence at Dynamic Display based in England.
• A lux sensor cased in a waterproof surround
runs from a PC laptop serial port to a position on a hillside
about two kilometres outside of the Tongan capital Nuku'alofa.
• Software written in Visual Basic then takes
the reading and transmits it to a PC connected to the lightbox
in San Jose using a TCP/IP connection.
• A
second software application then takes the lux reading and
sends it to the lightbox as a correlated value that the white
ultrabright LED's can respond to. A sliding scale exists that
allows us to calibrate the responsiveness of the light panel
to different ranges of lux values.
If you want to see more clearly what the light panel is made
of then you might want to download this pdf document; lbv100.pdf. |
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