I am trying to set up a test setup primarily to try and learn how Mavlink works. I have some ideas I want to try I have a rPi3 rPi camera pixhawk no other sensors connected I have copied the companion s/w on to the rPi and ran setup up. It doesn’t start automatically on reboot. What files are …

Hi Alan, For now, it’s not possible to install companion manually. [image] Manual Companion RPi Install? Companion We would like to use the Simulink/ROS stack available via MathWorks for some controls experiments with our new BlueROV2, and from the Simulink side this is d…

Thanks, I will try flashing the image onto my rPi. That hopefully will be the easiest solution. I didn’t know where to find it

[image] patrickelectric: You can use set_default_client_ip.sh (E.g: ./set_default_client_ip.sh 192.168.2.2) to set the raspberry IP address for ethernet connection. If you are running a Linux in your surface computer, you can use nmap to find the ip while scanning port 22 (E.g: nmap 192.168.0.1-…

Thanks for your help. I re flashed my rPi and it is working how I intended. Just one further point. What port is MavLink streaming its messages ? I would like to connect to this data stream for further processing and logging of the data. I am writing a photogrammetry application. I am also looki…

Hi Alan, You can take a further look in ardusub software components webpage to understand how the companion system works. MAProxy sends the protocol using UDP in 14550.

Thanks I’ll have a look. I am using C and UDP sockets look to be a bit different to TCPIP sockets which I have used in the past. I can connect as a client on 14550 but can’t receive the data stream. I’ll do some research

I think I am missing something. I assume that data is being streamed continuously on port 14550 no need to send any commands to the server port 14550 is used by QGroundcontrol. I assume only one client can access this at a time. I tried this very simple python code to see if I could connect an…

Hi Alan, You need to specify the server address and port to the socket object, looking in the socket documentation you can see the bind function. Bind the socket to address. The socket must not already be bound. (The format of address depends on the address family — see above.)

Ok I am assuming i connect as a client to the rpi Ip 192.168.2.2 port 14550 Or should i be the server (from my pc) and therefore use bind ?

I left out a couple of l8nes in the python code where i send a msg to 192.168.2.2 14550 and then listen for a response. I just sent a hello string but do i need to send a proper mavlink message ? I assume that data is being continuosly streamed from the rpi

Setting up test computer

Blue Robotics Software

jwalser (Jacob) April 17, 2018, 12:42pm 4

This script will require a reboot for the new ip to take effect. Also, this function is available in the web ui at http://192.168.2.2:2770/network.

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