Hello,
I have a BlueBoat and have installed a Teltonika RUTX50 on it. Additionally, I have installed an ArduSimple GNSS receiver with an external GNSS antenna, as well as a very small Windows PC (9W power consumption). The communication from my BlueBoat to my Windows PC goes through the router. So far, all of this works very well. Recently, however, I have been getting a warning in BlueOS that the CPU is receiving too little voltage and is therefore being throttled. I haven’t noticed any technical limitations while operating the boat so far, but I am worried that something is wrong with the Pi’s power supply.
Attached you’ll find some screenshots, which may help you. Moreover, I attached the system_log from BlueOS.
I would be very grateful for any help or your insights on this matter.
Best regards
system_logs.zip (1.0 MB)
I forgot to mention the mounted DeepWater Exploration HD camera which is the only hardware which consumes its power by the Raspberry USB port.
All the other hardware is connected to the fuse board.
Hi @ThomasM -
Do those warnings go away when the exploreHD is not connected? What version of BlueOS are you running?
You could try connecting the 5V wire (red) directly to the fuse-board (5V side!), so it is not powered by the Pi if the issue goes away when it is not connected.
What Windows PC are you running? I’ve never heard of one that can draw so little power! The ArduSimple GNSS is connected to this machine, and not the Pi/Navigator!? If so, why?
Hey Tony, the issue occurs sporadically. The error doesn’t appear every time the Blueboat is used. However, when it does occur, it disappears intermittently only to keep coming back. I’ve powered the Blueboat on three times now, but unfortunately, the error hasn’t resurfaced yet.
Next time it happens, I’ll try disconnecting the camera to see if that’s the source of the problem. If it is, I’ll attempt to connect the camera directly to the fuse board’s power supply. That said, I’d be surprised if the camera’s power consumption is already causing an issue for the Raspberry Pi. As far as I know, the DeepWater Exploration only draws a few watts.
I’m using a Geekom Air12 computer. I have enabled power-saving mode in Windows 11 and disabled Wi-Fi/Bluetooth. Measured at the wall outlet, the Geekom had an average consumption of 7-9W after booting, while running Beamworx NavAQ and a single-beam echosounder (though the echosounder is not powered via the computer). I’ve connected a step-down converter before the Geekom. It certainly consumes a bit of energy itself, but surely not much more than the original Geekom power supply.
The Ardusimple is connected to the Windows machine, because I am working with Beamworx NavAQ for data acquisition, which is not supported by linux.
I will get back to you as soon as possible once I have an update regarding the low voltage error of the Pi.
Best regards
