I wasn’t paying attention and I knew better, but I had a buffer overflow in some updates to my UNO receiver.
After research it a bit, I came across a thread saying not to use Strings because of memory leakage. I am not denying it, but not sure what else to use. A large enough payload can crash the system.
If this is exposed on the Internet it can squash the UNO.
Maybe the broker can limit the payload size.
On a side note, I did work out today in the gym
Felt good. Day ended early.