Documentation to console prompts and update

[Kukusse]

Hello,

I use an openDTU Fusion with an ESP32S3. I have the release [2025.06.11] flashed, and wanted to update to the latest built from [2025.10.11], via OTA.

The green progress bar froze sevral time, at a random level (20%, 61%, 65%...), so I had to refresh and tried again. I suspected then that something was wrong with the connection, so I had a look at the console logs.

Some prompts look quite curious, but before I post here my questions, I woulds like to try and understand the prompts by myself. Is there a kind of documentation that explain the prompts and message errors ?

Exemple of regular prompts I found:

22:45:45.338 > [VE.Direct MPPT 10/9] , addr: 0xEDBB (Panel Voltage), value: 0x00000069, flags: 0x00
22:45:45.606 > [VE.Direct MPPT 10/9] checksum 0x0a != 0x00, invalid frame
...
22:45:48.712 > Websocket: [/livedata][5] disconnect
22:45:48.908 > Websocket: [/solarchargerlivedata][6] disconnect
22:45:48.908 > All missing
22:45:48.908 > Nothing received, resend whole request
...
22:45:53.327 > [VE.Direct MPPT 10/9] 32 32 09 33 39 31 0d 0a 48 32 33 09 31 30 33 33
22:45:53.327 >
22:45:53.327 > WARNING: websocket client's queue is full, expect log lines missing
22:45:53.408 > sending commands enabled, reachable, eligible
22:45:53.408 > max reduction production/standby: 78/104 W, max increase: 495 W

Thanks / Grüße

Cédric

[SW-Niko]

Hello @Kukusse ,
No, sorry, there's no logging documentation. I would recommend reducing the log level to "Error" and trying again.

[Kukusse]

I did as @SW-Niko mentionned, and it solved ... everything.

-> I had some random connections to the inverter (sometimes more than 60s).
-> The ESP32S3 itself was sometime not reachable
-> The loading of a new Firmeware was difficult (it stops in the middle of the process many times).

Since I could finally manage to upload the latest built, I disabled all the logs of the console. And since then, all my problems are gone. OpenDTU works smoothly (With 2 vitron charge controllers + 1 Pylontech Battery + 1 HM-600).

I would recommend to add a line about this topic here: https://opendtu-onbattery.net/troubleshooting/

Thanks for the help !