How to generate .tlog file using pymavlink for connected drone?

🧪 Flight Testing & Log Analysis
1

I’m trying to create a program to generate .tlog file using pymavlink.

Here is the program which I’m currently running:

import time
from pymavlink import mavutil


connection_string = 'tcp:127.0.0.1:14550'  
master = mavutil.mavlink_connection(connection_string)

tlog_file_path = 'telemetry_log.tlog'
tlog = mavutil.mavlogfile(tlog_file_path, write=True)

try:
    while True:

        msg = master.recv_match()

        if not msg:
            continue

        buf = msg.get_msgbuf()
        tlog.write(buf)

        print(msg)

except KeyboardInterrupt:
   
    tlog.close()
    print("\nTelemetry logging stopped. TLog file saved at:", tlog_file_path)

But I’m not able to read or run the generated .tlog file by this code properly by using pymavlink or mission planner.

Can anyone help me.

2

I’d consider asking in discuss.ardupilot.org. That’s where tlogs and pymavlink are usually used.