"From looking a bit at the ArduPilot code, I'd say your assumption is true."
Gerald C. Hughes's Discussions
Roll,pitch,yaw data format
Started this discussion. Last reply by Allen Babb Sep 22, 2011. 1 Reply 0 Likes
Can anyone tell me what the number format is in the ATT: Roll,Pitch, and Yaw fields in the APM log files. I am assuming that the number should be divided by 100 but I am not sure about this. Any…Continue
IMU output
Started this discussion. Last reply by Aaron Bliesner Sep 14, 2011. 5 Replies 0 Likes
We are getting a lot of data from the Ardupilot IMU. However we seem to have a problem decipering what we are getting. Specifically, the Time stamp format is unknown. Is there documentation on…Continue
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Gerald C. Hughes posted a discussionRoll,pitch,yaw data format
Can anyone tell me what the number format is in the ATT: Roll,Pitch, and Yaw fields in the APM log files. I am assuming that the number should be divided by 100 but I am not sure about this. Any help? See More
Aaron Bliesner replied to Gerald C. Hughes's discussion IMU output"Thanks Doug.
I don't understand the units for CRS. Is it offset from desired path?
GPS is MediaTek that produces 8 digit stamp."
DeveloperDoug Weibel replied to Gerald C. Hughes's discussion IMU output
"What the gps timestamp is depends on which gps. Generally it is either millisecond time of day or millisecond time of week.
Crs is ground course, and mix altitude is a mixture of gps and baro altitude (% determined by the parameter…"
Aaron Bliesner replied to Gerald C. Hughes's discussion IMU output"The last value to the right is heading or bearing."
Aaron Bliesner replied to Gerald C. Hughes's discussion IMU output"GPS line left to right:
GPS Time, Fix, Sats, Lat, Long, "Mix Alt", GPS altitude, barometric altitude?, "CRS," and unknown.
I don't know what "mix alt," "CRS," or the last value.…"
Aaron Bliesner replied to Gerald C. Hughes's discussion IMU output"I'm looking at it too.
Here is a sample from a log from last week.
ATT: -427, 272, 18698
GPS: 55471500, 1, 13, 41.6851730, -111.8995000, 0.0000, 1547.2300, 1533.3500, 15.7300, 182.9300
What are the units for each value?…"
Gerald C. Hughes posted a discussionIMU output
We are getting a lot of data from the Ardupilot IMU. However we seem to have a problem decipering what we are getting. Specifically, the Time stamp format is unknown. Is there documentation on reading IMU data fields?j See More
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