Lumenier RID & M10Q GPS Module compatibility
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Hello, I am trying to hook up a Lumenier RemoteID module which has an integrated M10Q U-blox GPS module and magnetometer to my VOXL 2 Mini and have been unable to get it to be recognized by PX4. Has anyone else tried to connect a similar GPS module to their VOXL 2 or have any recommendations on what to look for? On Lumenier's documentation it claims compatibility with PX4 1.14.0 and above.
I have verified that the RX and TX cables and I2C cables are all correctly plugged in. The GPS module is blinking green which supposedly means it has a GPS lock according to the documentation I've read.
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@Alex-May Do you know what type of magnetometer is included with that module? As for GPS, the first thing to do is verify that PX4 is communicating with it. On the VOXL2 command line issue this:
px4-listener sensor_gpsand let's see what you get from that. -
@Eric-Katzfey the magnetometer is LIS3MDL. When I type "px4-listener sensor_gps" into the command prompt, I get the response "never published".
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@Alex-May The driver for that magnetometer has not been built into the image so it won't work without adding that driver. As for GPS it seems like it isn't communicating with the receiver. Can you run this experiment: Stop PX4 with
systemctl stop voxl-px4, wait a couple of seconds, then start px4 from the command line withvoxl-px4 -dand post the output from that? -
@Eric-Katzfey Thanks for the information on the magnetometer. We have integrated a different magnetometer and it seems to work. We will work on building the original mag into the image.
For the GPS, I just did what you suggested and here is the output.
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@Alex-May It really looks like there is no communication going on between the GPS and the VOXL 2. Can you attach an oscilloscope to the rx and tx lines to look for activity? Usually the M10 units come up and start sending NMEA strings at 9600 so you would be able to detect that on the scope.
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@Alex-May And can you post the entire output from
voxl-px4 -d?
