Help with telemetry parameters

ArduCopter Copter 3.1
1

I’ve been looking at the SR parameters and have a bunch of questions on what each of these categories contain. If any Pixhawk user has any idea that would help a lot because the documentation is lacking. Thank you.

Raw sensor stream rate (SR0_RAW_SENS) What is this? Pitch and Roll?

Extended status stream rate to ground station (SR0_EXT_STAT) What is extended status?

RC Channel stream rate to ground station (SR0_RC_CHAN) I’m guessing this is just a mirror of the PPM input to the Pixhawk?

Raw Control stream rate to ground station (SR0_RAW_CTRL) How is this any different from the above?

Position stream rate to ground station (SR0_POSITION) I’m guessing this is GPS coordinates? Does it include anything else?

Extra data type 1 stream rate to ground station (SR0_EXTRA1) What in the world is a “type 1 data” or type 2 or 3 for that matter?

Extra data type 2 stream rate to ground station (SR0_EXTRA2)

Extra data type 3 stream rate to ground station (SR0_EXTRA3

Parameter stream rate to ground station (SR0_PARAMS) What parameters?

2

Hello

look here: copter.ardupilot.com/wiki/5819-2/

3

[quote=“KA800”]Hello

look here: copter.ardupilot.com/wiki/5819-2/[/quote]

I have looked at that wiki page before posting. On the page there is a take off the parameters and an unhelpful description. For example, the page says
SR0_EXTRA1 = telemetry stream rage of type 1 extra data.

What the heck is “type one data” it could mean anything and is very vague.

4

[quote=“popwebz”][quote=“KA800”]Hello

look here: copter.ardupilot.com/wiki/5819-2/[/quote]

I have looked at that wiki page before posting. On the page there is a take off the parameters and an unhelpful description. For example, the page says
SR0_EXTRA1 = telemetry stream rage of type 1 extra data.

What the heck is “type one data” it could mean anything and is very vague.[/quote]

I’ll figure out which messages are in which groups and get back to you. Thanks.

5

RAW_SENS:

  • RAW_IMU
  • SCALED_IMU2
  • SCALED_PRESSURE
  • SENSOR_OFFSETS
    EXT_STAT:
  • SYS_STATUS
  • MEMINFO
  • MISSION_CURRENT
  • GPS_RAW_INT
  • NAV_CONTROLLER_OUTPUT
  • LIMITS_STATUS
    RC_CHAN:
  • SERVO_OUTPUT_RAW
  • RC_CHANNELS_RAW
    RAW_CTRL:
  • RC_CHANNELS_SCALED (HIL)
    POSITION:
  • GLOBAL_POSITION_INT
    EXTRA1:
  • ATTITUDE
  • SIMSTATE (SITL)
    EXTRA2:
  • VFR_HUD
    EXTRA3:
  • AHRS
  • HWSTATUS
  • SYSTEM_TIME
    PARAMS:
  • PARAM_VALUE
1 Like
6

Great answer Jonathan. :smiley: Just what I’ve been looking for.
I took the liberty of adding a request in the wiki forum to include that information.

/J

7

Great answer！ This should be in docs of ardupilot.

8

Also SR0 = USB SERIAL SR1 = SERIAL1 SR2 = SERIAL2 SR3 = SERIAL3 am I right?

9

Link to wiki dont work anymore