<![CDATA[Mavlink messages through voxl-logging]]>I'm trying to log mavlink messages though voxl-logger but all of the mavlink message pipes contain only i, timestamp.

I have been able to log imu and tracking camera data but not the mavlink messages. Any ideas?

Note: still on sdk1.3

$ voxl-version 
--------------------------------------------------------------------------------
system-image: 1.7.10-M0054-14.1a-perf
kernel:       #1 SMP PREEMPT Fri Sep 27 21:59:02 UTC 2024 4.19.125
--------------------------------------------------------------------------------
hw platform:  M0054
mach.var:     1.0.1
--------------------------------------------------------------------------------
voxl-suite:   1.3.5


voxl2:/home/starling2voxl-logger -m mavlink_attitude -t 3
starting 3.0 second timer
connected to ch 0 mavlink: /run/mpa/mavlink_attitude/
stopping automatically after requested timeout
summary of data logged:
ch 0, type: mav, samples:      88, path: /run/mpa/mavlink_attitude/
created new log here:
/data/voxl-logger/log0013/
voxl2:/home/starling2$ cat /data/voxl-logger/log0013/run/mpa/mavlink_attitude/data.csv 
i,timestamp(ns)
0,20016407463491
1,20016507691080



mavlink_message_t
	mavlink_ap_heartbeat
	mavlink_attitude
	mavlink_from_gcs
	mavlink_gps_raw_int
	mavlink_local_position_ned
	mavlink_onboard
	mavlink_sys_status
	mavlink_to_gcs


$ voxl-mavlink-server -j
loading our own config file
=================================================================
Parameters as loaded from config file:
primary_static_gcs_ip:        
secondary_static_gcs_ip:      192.168.41.42
onboard_port_to_autopilot:    14556
onboard_port_from_autopilot:  14557
gcs_port_to_autopilot:        14558
gcs_port_from_autopilot:      14559
en_external_uart_ap:          0
autopilot_uart_bus:           1
autopilot_uart_baudrate:      921600
autopilot_mission_delay_start:      -1
udp_mtu:                      0
gcs_timeout_s                 4.50
en_external_ap_timesync:      1
en_external_ap_heartbeat:     1
=================================================================
existing instance of voxl-mavlink-server found, attempting to stop it
starting receive thread for onboard channel from autopilot
starting receive thread for gcs channel from autopilot
CONNECTED to autopilot on onboard channel
CONNECTED to autopilot on gcs channel
Not connecting to primary gcs ip: 
Adding secondary manual gcs IP address to udp connection list: 192.168.41.42
Added new UDP connection to 192.168.41.42
Init complete, entering main loop
to ob pipe  ID: 141  compid:   1
to ob pipe  ID:  32  compid:   1
to ob pipe  ID: 290  compid:   1
to ob pipe  ID: 291  compid:   1
to ob pipe  ID:  30  compid:   1
to ob pipe  ID: 331  compid:   1
to ob pipe  ID:  83  compid:   1
to gcs pipe ID:  31  compid:   1
to ob pipe  ID:  29  compid:   1
to ob pipe  ID:  65  compid:   1
to ob pipe  ID:  36  compid:   1
to ob pipe  ID:  74  compid:   1
to ob pipe  ID: 105  compid:   1

Screenshot from 2025-10-20 15-10-37.png

]]>https://forum.modalai.com/topic/4825/mavlink-messages-through-voxl-loggingRSS for NodeSun, 06 Sep 2026 15:42:31 GMTMon, 20 Oct 2025 04:25:25 GMT60<![CDATA[Reply to Mavlink messages through voxl-logging on Tue, 16 Dec 2025 22:19:16 GMT]]>@rnunna at this point I would recommend either creating a python or cpp script that leverages mavsdk to probe the logs and get it into the format you are desiring.

Zach

]]>https://forum.modalai.com/post/24679https://forum.modalai.com/post/24679Tue, 16 Dec 2025 22:19:16 GMT<![CDATA[Reply to Mavlink messages through voxl-logging on Mon, 15 Dec 2025 19:18:52 GMT]]>@Eric-Katzfey said in Mavlink messages through voxl-logging:

@ndwe -z in the voxl-logger command, not the voxl-replay command. But looks like voxl-replay sees the data and there is a raw data file for it to parse. Are you still having an issue?

@Eric-Katzfey is there any way to view the mavlink messages in plaintext (not raw)? We want to plot the data on LOCAL_POSITION_NED and MAVLINK_ATTITUDE hence our need for the data in CSV.

]]>https://forum.modalai.com/post/24663https://forum.modalai.com/post/24663Mon, 15 Dec 2025 19:18:52 GMT<![CDATA[Reply to Mavlink messages through voxl-logging on Tue, 21 Oct 2025 01:36:13 GMT]]>Ok thanks, I can parse the raw data. I guess I was expecting the csv to contain the data as well

]]>https://forum.modalai.com/post/24165https://forum.modalai.com/post/24165Tue, 21 Oct 2025 01:36:13 GMT<![CDATA[Reply to Mavlink messages through voxl-logging on Tue, 21 Oct 2025 00:04:32 GMT]]>@ndwe -z in the voxl-logger command, not the voxl-replay command. But looks like voxl-replay sees the data and there is a raw data file for it to parse. Are you still having an issue?

]]>https://forum.modalai.com/post/24163https://forum.modalai.com/post/24163Tue, 21 Oct 2025 00:04:32 GMT<![CDATA[Reply to Mavlink messages through voxl-logging on Mon, 20 Oct 2025 23:59:17 GMT]]>voxl-replay -p /data/voxl-logger/log0014/ -z
voxl-replay: invalid option -- 'z'

Replay a log

-d, --debug enable verbose debug mode
-h, --help print this help message
-n, --number {number} number of log to open, e.g. 32
-p, --path {path} complete path of log to open, e.g. /data/mylog/
-s, --start {seconds} starts the replay (float) seconds into the log
-f, --finish {seconds} ends the replay (float) seconds into the log
-i, --include {name} name of pipe to publish, publish all if not specified
-e, --exclude {name} name of pipe to not publish, publish all if not specified
-y, --auto_kill automatically kills servers that conflict with the log

When I use the -d flag

voxl2:/data/voxl-logger/log0013$ voxl-replay -p /data/voxl-logger/log0013/ -d
enabling debug mode
opening json info file: /data/voxl-logger/log0013/info.json
using log_format_version=1
log contains 1 channels
log started at 20016320271533ns
log publish channel 0:
type: mav
out path: /run/mpa/mavlink_attitude/
log path: /data/voxl-logger/log0013//run/mpa/mavlink_attitude/
total samples: 88
opening csv file: /data/voxl-logger/log0013//run/mpa/mavlink_attitude/data.csv
opening raw file: /data/voxl-logger/log0013//run/mpa/mavlink_attitude/data.raw
creating pipe: /run/mpa/mavlink_attitude/
finding start frame for channel 0
header for channel 0 /run/mpa/mavlink_attitude/
i,timestamp(ns)
log started at 20016320271533ns, shifting to 20016407463491ns
replay start time ns: 1498719153614entering main loop
starting to publish mavlink to: /run/mpa/mavlink_attitude/
publishing to ch0 at 1498819501us a mavlink packet with timestamp 1498819381us
publishing to ch0 at 1498819646us a mavlink packet with timestamp 1498819397us
publishing to ch0 at 1498819671us a mavlink packet with timestamp 1498819400us

Thanks

]]>https://forum.modalai.com/post/24162https://forum.modalai.com/post/24162Mon, 20 Oct 2025 23:59:17 GMT<![CDATA[Reply to Mavlink messages through voxl-logging on Mon, 20 Oct 2025 16:16:57 GMT]]>@ndwe said in Mavlink messages through voxl-logging:

/data/voxl-logger/log0013/run/mpa/mavlink_attitude

Was there no raw data file in that directory? You can get verbose debug printouts in voxl-logger with the -z option to see what it is logging.

]]>https://forum.modalai.com/post/24147https://forum.modalai.com/post/24147Mon, 20 Oct 2025 16:16:57 GMT