On Sat, 20 Sep 2008 17:36:00 -0400, Michael Fisher [EMAIL PROTECTED]
wrote:
On Sat, Sep 20, 2008 at 4:07 PM, Joel Newkirk [EMAIL PROTECTED]
wrote:
I wrote a short shell script to repeatedly take the raw output from one
of
the accelerometers
Joel Newkirk wrote:
Sorry. ;) Near-stationary, power consumption immaterial, as accurate as
possible. As a project to get my feet wet doing ground-up development
(probably Python, which I need to learn) for the Freerunner (instead of
just cross-compiling and fixing issues therein) I wanted
I wrote a short shell script to repeatedly take the raw output from one of
the accelerometers (/sys/devices/platform/spi_s3c24xx_gpio.1/spi0.1/dump)
and massage the data to output X,Y,and Z-axis readings in decimal, -128 to
128.
With my Freerunner sitting flat, face up, on the concrete slab of my
On Sat, Sep 20, 2008 at 4:07 PM, Joel Newkirk [EMAIL PROTECTED] wrote:
I wrote a short shell script to repeatedly take the raw output from one of
the accelerometers (/sys/devices/platform/spi_s3c24xx_gpio.1/spi0.1/dump)
and massage the data to output X,Y,and Z-axis readings in decimal, -128 to
On Saturday 20 September 2008, Joel Newkirk wrote:
I wrote a short shell script to repeatedly take the raw output from one of
the accelerometers (/sys/devices/platform/spi_s3c24xx_gpio.1/spi0.1/dump)
and massage the data to output X,Y,and Z-axis readings in decimal, -128 to
128.
With my
On Sat, 20 Sep 2008 17:36:00 -0400, Michael Fisher [EMAIL PROTECTED]
wrote:
On Sat, Sep 20, 2008 at 4:07 PM, Joel Newkirk [EMAIL PROTECTED]
wrote:
I wrote a short shell script to repeatedly take the raw output from one
of
the accelerometers
since low cost accelerometers are somewhat noisy, I'd suspect that first.
http://wiki.openmoko.org/wiki/Technical:Accelerometer_Fundamentals
Not sure what kind of filter you should use. There should be some guys
On the list who can chime in better than I can.
Joel Newkirk wrote:
I wrote a
Have a look at this might help.
Note, we dont use a freescale accel, so some things may be different but
you'll get the basic idea.
http://www.freescale.com/files/sensors/doc/app_note/AN3397.pdf?fpsp=1WT_TYPE=Application%20NotesWT_VENDOR=FREESCALEWT_FILE_FORMAT=pdfWT_ASSET=Documentation
Joel
Thanks - I was just reading through
http://www.freescale.com/files/sensors/doc/app_note/AN3107.pdf about tilt
measurements, which is linked from the wiki. (I'd missed it before) The
one you linked is mostly about position calculations, double integration of
the acceleration data, although it
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