https://maemo.octonezd.me/api.php?action=feedcontributions&feedformat=atom&user=217.123.143.197Maemo Wiki Mirror - User contributions [en]2026-04-22T08:42:52ZUser contributionsMediaWiki 1.45.1https://maemo.octonezd.me/index.php?title=N900_light_meter&diff=28614N900 light meter2011-02-15T20:32:30Z<p>217.123.143.197: /* Software */ Removed MacHow spam</p>
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<div>The light meter lets the software on the [[Nokia N900|N900]] sense ambient light levels.<br />
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==Hardware==<br />
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The device is a TAOS [http://www.taosinc.com/downloaddetail.aspx?did=141 TSL2563].<br />
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==Software==<br />
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It is handled by the kernel module tsl2563.<br />
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The kernel driver exposes the [[:wikipedia:lux|lux]] value in the sysfs file<br />
cat /sys/class/i2c-adapter/i2c-2/2-0029/lux<br />
21<br />
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Third party applications that use this sensor include [http://www.tuug.fi/~toni/serendipity/index.php?/archives/14-Luxus-Light-Meter-v0.2-for-N900,-as-a-real-homescreen-widget.html Luxus Light Meter] and [http://norayr.arnet.am/weblog/?p=1710 photographic light meter].<br />
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The sensor is also used to modulate the backlight in response to ambient light.<br />
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[[Category:N900 Hardware]]</div>217.123.143.197