Aanii, We are attempting to reactivate our BlueROV after it spent the winter months in slumber. We are experiencing problems using the computer to link the BlueROV to QGC. All the necessary sounds and lights are present when we switch on the BlueROV, and when the topside interface is connected to the tether and ROV, the power and link active green light bulbs turn on. The QGC has stated “no vehicle found”, and “Disconnected” many times. We are still extremely fresh to the field of robotics and are making an effort to learn as we go. Wondering if anyone could help us figure out what steps to take next. We have assumed that it is an issue stemming from the tether connection since QGC and both the ROV and topside interface box seem to be working.
When looking at the console in the settings of QGC it seems to be there is no connection established between the BlueROV and the application.
If the link light is on then the FXTI has an ethernet connection to the vehicle, so most likely there’s some issue with the network configuration on your control station computer, or perhaps the USB-B to USB-A cable between the FXTI and your control computer is faulty.
There are a couple of other possibilities, but to start with I’d recommend
Going through our software setup guide to make sure your network configuration is correct, and (if that doesn’t help)
Trying a different USB-B to A cable (they’re commonly used on printers and for programming Arduino boards, if that’s helpful to find one to test with)
If neither of those resolves the issue then we can try to do some additional troubleshooting
Is there an easy way to troubleshoot correct operation of the Raspberry Pi if a connection cannot be established via the tether?
I have an old BlueROV2 R2 that has been updated with BlueOS. It has previously worked without issues however I am now unable to establish a connection.
The ROV powers up, it makes the right sounds and appears to show the correct lights, the FXTI has two green LEDs, I have confirmed the static IP address for the network is still 192.168.2.1, I have tried different USB cables however I am unable to establish a connection.
QGC does not connect to the ROV, I cannot reach BlueOS via a browser and I cannot ping 192.168.2.2 (the request times out).
I can connect the Pixhawk directly to my PC via USB and QGC recognises it.
Is there any way for me to connect directly to the Pi to help isolate any potential issues with the FXTI and tether etc?
Hi @pforperry -
Yes, you can absolutely eliminate potential issues with your tether. Simply connect an ethernet cable directly from the Raspberry Pi port in the ROV to your computer, and configure the ethernet adapter to have the correct IP address (and subnet mask of 255.255.255.0) If the Pi is booting ok, you should be able to reach BlueOS!
Is the link light staying illuminated at all times? That’s the most typical “gotcha” when it comes to no connectivity to the ROV.
You can also connect an HDMI cable from the Pi to a monitor to see the boot-up process, and if any issues are occuring with it.
That is brilliant…I cannot believe I didn’t think about the HDMI connection that has been staring at me the whole time.
After watching the Pi boot on an external monitor, it appears the Pi is operating normally so I will continue trouble-shooting via direct Ethernet connection.
