Bootloader Standalone mode

martin181818

Hi all,

I am working on this example that sends mqtt messages using poe cameras each 5 seconds: depthai-experiments/gen2-poe-mqtt at master · luxonis/depthai-experiments · GitHub

The script works fine with the script node in normal mode and the data is received but when I change to standalone mode, the bootloader shows 100% progress, but no messages are received anymore.
I repeated the operations several times, I disactivated firewall and I tried to update depthai and bootloader but still it is not working even though no errors are displayed when using the bootloader.
The exact same script was working correctly with the exact configuration few months ago.
These are the lines I am using for the bootloader:

(f, bl) = dai.DeviceBootloader.getFirstAvailableDevice()

bootloader = dai.DeviceBootloader(bl)

progress = lambda p : print(f'Flashing progress: {p*100:.1f}%')

bootloader.flash(progress, pipeline)

What could be the issues behind this anomaly ? Do you have some suggestions to solve the issue ?

Thank you very much.

jakaskerl

Hi @martin181818
Can you confirm the app is flashed to the device? Make sure to also use direct IP of the MQTT server since standalone mode is missing a DNS resolver.

Thanks,
Jaka

martin181818

jakaskerl

Thank you for your reply.
Yes the app is flashed to the device. I am also using the IP of the MQTT server.
Trying to bootload the example of TCP communication like the example of cumulative object counting works fine so surely the flashing is correct but the problem occurs only with MQTT.

thank you very much

jakaskerl

Hi @martin181818
That is very strange then.. Could you use something like Wireshark to inspect the network traffic and check if messages are being sent (but perhaps not received)?

Thanks,
Jaka