accelerometer calibration

2010-12-23 Thread W. B. Kranendonk 
Hi List,

One of my FRs is dizzy: the accelerometers are off. 

Using mokomaze as testing tool for the time being, the ball runs off to the top 
right if I put it flat on the table (imagine my furniture not too fashionable - 
that is: the table surface is horizontal ;-))

I can keep the ball from running of by lifting the right side by 15 deg and the 
top by about 5 deg.

On the wiki there is sparse mention of accelerometer calibration; is it 
possible at all or does it have a different name?

Best regards,

Boudewijn


  

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Re: accelerometer calibration

2010-12-23 Thread Timo Juhani Lindfors 
W. B. Kranendonk wankelwan...@yahoo.com writes:
 One of my FRs is dizzy: the accelerometers are off. 

Can you send a sample of the accelerometer data? (Preferably in the
binary format that you can read from /dev/input/)





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Re: [ANN]: GTA04 (Beagleboard inspired Openmoko Upgrade) - Early Adpoter Program

2010-12-23 Thread Thomas Franck 
Am 21.12.2010 16:33, schrieb Dr. H. Nikolaus Schaller:
 So we are very confident that the already scheduled redesign
 (GTA04A3) will work right from the beginning and boot Linux.
 
 This looks like the start of the aera of new Openmoko devices.

Thank you very much for your efforts regarding OSS and especially the
Openmoko Freerunner!

I was eagerly following your updates about this project and it sounds
sooo great! :D Your announcement is indeed a wonderful X-Mas present!


 -- early adopter program --
 
 Therefore, we have thought hat we offer an early adoper
 program to the benefit of everybody.
 
 The idea is that you can order a GTA04A3 immediately. At
 a fixed price (280 EUR). And we take the risk that prices of
 components will change. You only take the risk that we may
 need more time to get the components and have to spin
 another PCB.
 
 Using your money, we will order the core components with
 a long lead time (OMAP, Memory, UMTS module) as soon
 as possible - and early enough before the GTA04A3 design
 is finished.

I was pondering on putting my money into this - and I do want to.. just
not possible for me right now. So I'd like to ask: for about how long do
you plan to have that EA offer on?

Best regards and merry christmas!
-- 
Thomas

-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~
The day Microsoft creates a product that doesn't suck is the day they
make vacuum cleaners.
-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~



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Re: [ANN]: GTA04 (Beagleboard inspired Openmoko Upgrade) - Early Adpoter Program

2010-12-23 Thread Al Johnson 
On Thursday 23 December 2010, W. B. Kranendonk wrote:
 --- On Wed, 12/22/10, Alfa21 freerun...@my.is.it wrote:
  2010-12...@14:21 W. B. Kranendonk
  
   That reminds me... The BeagleBoard can provide up to
  
  1280*1024 or 1280*720 if I recall correctly. Do we have
  options to channel that power out of the box? Nikolaus
  why not??
  If all we need is a piece of copper (w/o logic inside)
  cable... today we have many tv-set with hdmi, dvi, vga ports
  all around us! we could go in any hotel and use that
  tv-screen and feel like at home with our mobile computing!
 
 I am aware of the screens all around us, the point seems to me getting the
 wire out of the box. Could it be redirected to the USB-paths, so that the
 USB-connector became a DVI-disguised-as-USB? It doesn't have the amount of
 wires needed, so the available wires had to be multiplexed. In the
 USB-to-DVI/HDMI/WE(whatever)-converter the signals have to be demuxt
 again.

USB connector won't handle the bandwidth required by raw DVI/HDMI. You could 
use a DisplayLink USB to HDMI adapter like the AlwaysInnovating DualScreen if 
USB host mode is available. Since the board is using the OTG connector instead 
of the mini-B there's a fair chance of a usable host mode, but wait for 
confirmation.

 Would the cameraconnector (the extra connection to the back of the phone)
 allow for this kind of signalling?

I very much doubt it...

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Re : Re: accelerometer calibration

2010-12-23 Thread sylvain.pare 
With a command line like this :cat /dev/input/event4 | od -c (or -b or -d dont remember and i am not on my laptop)Le 23 déc. 2010 10:11, Timo Juhani Lindfors timo.lindf...@iki.fi a écrit: "W. B. Kranendonk"  writes:
> One of my FRs is dizzy: the accelerometers are off. 

Can you send a sample of the accelerometer data? (Preferably in the
binary format that you can read from /dev/input/)





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