mavsniff

Capture and replay MAVLink packets from your drone or GCS.

You can read from a serial line (ttyS0/COMx) or from network (TCP). Mavsniff stores packets in pcapng format so you can analyse them with Wireshark.

Instalation

$ pip install mavsniff

Mavsniff is distributed via PYPI and an entrypoint mavsniff should be available in your $PATH after installation.

Usage

$ mavsniff capture --device /dev/ttyS0 --file recording.pcapng
$ mavsniff replay --file recording.pcapng --device socket://localhost:5467 

Available device urls:

• -d /dev/ttyS0 - standard serial port on UNIX systems
• -d COMx - e.g. COM1 or COM4 - standard serial ports on Windows systems
• -d socket://<host>:<port> - receive packets via TCP (only for capture command)
• currently, there is no option how to send MAVLink packets over the network.

Consult more device urls on pyserial documenation page.

Caviats

When using a loop:// device please note that there is a finite buffer size (usually 4096 bytes). Do not send larger files there withou reading from the buffer in parallel.