MicroPython Forum (Archive)

Hi,

I subscribe to a less than 10 digit text to control relays. I noticed that if the incoming message contains a large string, > 50 characters, the code crashes. This doesn't happen using the same code on a Linux box. A work around is to limit the incoming string.

The library used is upmqttsimple on a ESP32.

Could this be a memory-run-out case?
TIA

It sounds unlikely unless the size is huge. When you say it crashes, does it produce any text which might help in diagnosing the problem?