Hi,

I wonder, what all those parameters are for:

SR0_EXT_STAT,3
SR0_EXTRA1,10
SR0_EXTRA2,10
SR0_EXTRA3,3
SR0_PARAMS,50
SR0_POSITION,3
SR0_RAW_CTRL,0
SR0_RAW_SENS,0
SR0_RC_CHAN,3
SR3_EXT_STAT,1
SR3_EXTRA1,10
SR3_EXTRA2,10
SR3_EXTRA3,0
SR3_PARAMS,0
SR3_POSITION,3
SR3_RAW_CTRL,2
SR3_RAW_SENS,10
SR3_RC_CHAN,3

I cannot find any explanation. In some sample setups (for example the Skywalker) they are set to special values...

Thanks and regards

Dirk

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SR == stream rate

const AP_Param::GroupInfo GCS_MAVLINK::var_info[] PROGMEM = {
AP_GROUPINFO("RAW_SENS", 0, GCS_MAVLINK, streamRateRawSensors),
AP_GROUPINFO("EXT_STAT", 1, GCS_MAVLINK, streamRateExtendedStatus),
AP_GROUPINFO("RC_CHAN", 2, GCS_MAVLINK, streamRateRCChannels),
AP_GROUPINFO("RAW_CTRL", 3, GCS_MAVLINK, streamRateRawController),
AP_GROUPINFO("POSITION", 4, GCS_MAVLINK, streamRatePosition),
AP_GROUPINFO("EXTRA1", 5, GCS_MAVLINK, streamRateExtra1),
AP_GROUPINFO("EXTRA2", 6, GCS_MAVLINK, streamRateExtra2),
AP_GROUPINFO("EXTRA3", 7, GCS_MAVLINK, streamRateExtra3),
AP_GROUPINFO("PARAMS", 8, GCS_MAVLINK, streamRateParams),
AP_GROUPEND
};

They are related to communication between the APM and the GCS.

When importing params files from other people, I recommend using the "compare" function rather than importing everything. There are a few things in there that are specific to the locale or gear the other person is using, like radio calibration, compass declination, battery setup, etc. The compare feature is a great way to compare your settings, your defaults and the settings used in a shared params file.

What parameters do you need to set to have the ArdiCopter APM output telemetry data to the MinimOSD ?  I am having problems with no data going to the MinimOSD while using a 3DR radio in parallel.  I have tried numerous SR3 settings and I can't seem to get it to work in conjunction with the 3DR, it will work just fine if I connect it to the TELEM port by itself.

Hi Gregory,

Did you manage to get telemetry and minimOSD to work at same time?

If not, try this parameters setting (works for me on Arducopter 2.9.1 with 3DR radio and minimOSD):

Not sure why but it seems that for Arducopter firmware you need SR0 parameters set. Other guys had the same issue and when setted SR0 parameters minimOSD started to receive the data.

Regards,

Miguel

Should I put the same parameters if I just need the 3DR radios to work (Version 1 and I don't have the minimOSD)

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