I have been trying to get my digital airspeed sensor to work and while doing some research I came across this post that claims that the "I2C2" port on the PX2.1 does not work:
The proposed solution is to connect the device on I2C1 (on the GPS1 port). Has anyone else encountered this issue ?
I now have it working. I was under the incorrect assumption that the aispeed sensor static port was also providing barometric altitude data to the Pixhawk. But, the instructions say to set the ARSPD_BUS = 1, I can only make it work on ARSPB_BUS = 0 rather than what the instructions say. This is on a Pixhawk 2.1
I'm using the eagletree v3 sensor BTW
I was just looking at the Libraries and the airspeed library has the driver for the MS5525 airspeed sensor but the Baro library doesn't have a driver for the MS5525. It's been a very long time since I was working with the development but I think that is why I'm seeing airspeed but no altitude.
I haven't looked at voltage and current since I just upgraded yesterday in hopes that the airspeed sensor would work
I've updated the FW to 3.8.0 beta5 and I can now see the ARSPD_BUS parameter but The "Enable" option is blacked out for airspeed whatever bus number I put.. also, The current sensor does not work properly with this version.. It seems like the current is multiplied by +- 1000.
1 - I suppose that means that the "I2C2" port on the carrier board is in fact I2C3 ?
2 - I'm on 3.7.1.. will update oups..
1). I just confirmed that GPS2 uses I2C-2
2). I'm running arduplane 3.8.0rc5
It's not in the list ??!!??
cant find the parameter: I'm searching in the "full parameter list" .. what is the mavelink name for the parameter you are talking about or do I need to change this through some other mechanism?
Simon, try changing the I2C bus from 1 to 0 in the parameter config file, I just did that and the airspeed seems to be working
Edit: But Altitude isn't