What radio? It isn’t pictured as far as I can see there.
Radiomaster 16 channel
And you are connecting to Mission Planner through it?
Yes holybro 433 mhz radio
Ok, that’s a new piece of hardware…
Again, please be specific or it becomes EXTREMELY difficult to help!
Do you mean this?
Yes same ones I also have the 900 mhz version
Ok! We can simplify your existing configuration at a minimum, and it will translate well if you decide to use a second SimpleRTK2B.
Remove the XBee radios from the GPS modules (fixed base and onboard).
Connect your fixed base SimpleRTK2B to your GCS laptop and follow the instructions here:
https://ardupilot.org/copter/docs/common-rtk-correction.html
This way, the RTCM3 correction data is encapsulated in the MavLink telemetry stream, and there is no need for a second set of radios (the XBees become obsolete and no longer pollute the 2.4GHz band, which would be a source of interference for your Radiomaster hardware).
Then, you can use this to autoconfigure your GPS (was not possible with the XBee due to baud rate customization within the ArduSimple board itself):
GPS_AUTO_CONFIG,1
GPS_PRIMARY,1
GPS_RATE_MS2,200
GPS_TYPE2,1
SERIAL1_PROTOCOL,5
So long as any compass remains in play without a moving baseline configuration:
EK3_SRC1_YAW,1 (a setting of 2 was also hurting your compass config)
I do highly recommend a second onboard SimpleRTK2B in lieu of the Holybro M10, but I don’t want to reach into your wallet over the internet…
So there will be two antennas on the rover?
will I get the same accuracy with the three boards?
I dont mind getting another board. I am into 4 weeks 10 hour days and got nowhere
Thank You
Again, a vague question, so I will answer in specifics.
Given that you want to use a moving baseline configuration:
On shore:
- 900MHz antenna on the Holybro radio connected to the GCS computer
- 2.4GHz antenna on the Radiomaster TX16S
- GNSS antenna on the fixed base SimpleRTK2B
Onboard:
- 900MHz antenna on the Holybro radio
- 2.4GHz antenna on the RC receiver
- 2 x GNSS antennas, one on each onboard SimpleRTK2B
If you are stateside, Mouser sells SimpleRTK2B modules and associated antennas at prices comparable to the direct price from ArduSimple (in Spain), and I’ve had them as fast as overnight, even with standard shipping (though I live close to their warehouse…).
Ok thanks reading about it now the video look very impressive on accuracy
It’s extremely impressive, and the moving baseline option removes all doubt from magnetometer based compasses. It’s a really slick configuration if you’re willing to spend the time and money. I know it’s expensive and not for everyone.
Sorry, I missed this earlier:
Position precision and accuracy will be identical no matter how we slice this. We are more discussing the method of transport of the data than the data itself.
A third SimpleRTK2B adds the ability to get heading (yaw) from the GPS config rather than a compass module, which is also quite precise when configured correctly.
Ok good. I’ll wait for Ardusimple’s reply to my problem if they cant give a working resolution I’ll order the third board, I do understand what your explaining about the yaw
Ardusimple dont take long to reply so make a decision middle next week.
Thank you so much for your time and information
I am in the UK so Mouser for me
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Frankly, I don’t think your troubles stem from the ArduSimple side of things at this point.
Once I put their parameters in I get the EKF VARIANCE so that’s why I am thinking Ardusimple, but I really don’t know enough about the subject to make a qualified decision
I think that’s the EK3_SRC1_YAW parameter referencing GPS yaw, which is unavailable. Set it to 1 so long as you’re using compasses.
It looks like they are trying to get you to configure the +Heading board, which we now know you don’t have.
Is EKF Variance related to the compasses or GPS or maybe both?
It’s because you forced the EKF to use a source that does not exist.
