Accelerometers

(New page: Fremantle offers the possibility to play with accelerometers. There is a plan to offer a proper interface for accelerometers in Maemo, but if you want to try out before there are a couple ...)
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Fremantle offers the possibility to play with accelerometers. There is a plan to offer a proper interface for accelerometers in Maemo, but if you want to try out before there are a couple of ways to do it.
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#REDIRECT [[N900 accelerometer]]
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== D-Bus ==
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Thomas Thurman ([http://twitter.com/marnanel marnanel]) has put together a simple demo of an application using accelerometers using the D-Bus interface. You can find sources and .deb up at http://people.collabora.co.uk/~tthurman/sandcastle/
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== sysfs ==
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Another way is to use the sysfs file information.
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/sys/class/i2c-adapter/i2c-3/3-001d/coord
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When reading that file you get 3 values X, Y and Z. Values are in mG (milli G). 1000 = 1 G
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* On the table face up values are 0, 0, -1000  (face down would read 0, 0, 1000)
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* On the table on botton side (landscape): 0, -1000, 0
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* On the table on right side (portrait): -1000, 0, 0
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* In any other position any mix of those 3 values.
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These are theoretical values. In real life your mileage will vary.
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Latest revision as of 14:12, 16 June 2010

  1. REDIRECT N900 accelerometer
Retrieved from "https://wiki.maemo.org/Accelerometers"