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November 12, 2010
about 4 years ago
don’t think ???
Not starting an argument here, but acceleration is measured in meters per second per second. Hence, you have to be moving to be accelerating. Gravity I don’t think can come into it.
If I take my board and take the normally front facing LS20126 and face it downwards, I get a zero reading on the Z axis. I suppose I can just factor that out when using the board.
Ummm…I’ve sworn on my dead brothers grave I’d not tell how Auto-calibration works (isn’t that the MOST stupidest thing ever), but if you feel comfortable with posting an email address you don’t use too often maybe I’ll let slip a few secrets.
Did you actually get the acceleration feature to work (i.e. the string headed by “$PLSR,245,1” ? I was getting strings back such as this :-
Even after pestering Locosys (they wanted to know Company details and production runs….) I managed to get the device Auto-calibrated giving a ‘7’ as the second parameter (before it was 0, un-calibrated). But study the X,Y,and Z Acceleration fields. X is 3, Y -is -12, but Z is 235.
With the unit at rest this is just strange.
I’ve also noticed that this is more of a tilt unit. Hold the unit at a steady angle and these X and Y values remain at high values.
Locosys now refuse to talk to me because I’m not a major player……soooo, has anyone else managed to solve this riddle ?
Also, can anyone tell me how to decode the “$PLSR,245,2” returns ?
I think this datasheet is quite severely flawed (probably through bad translation), although the Rep. said she was trying to protect their intellectual property rights. If a unit doesn’t do what it’s meant to do, I think a company has the obligation to everyone to help badly written documents.
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