Dear Sirs, I am using Arduino ESP8266 Core version 2.3.0 and I observed abnormal ESP Free Heap reduction, especially when I used sprintf in a function that is executed offen each 2 seconds. Do you know anything about this?
Using exactly the same code, but doing string manipulation using different way -not sprintf but String- this memory leakage seems minimal.
What do you think about? Thanks in advance. Best Regards, Mike Kranidis