The sketch below shows pretty much all that I’m doing. But with blynk it very hard to reach at last one day of stable work. So, without blynk library my code is very stable. I tried to create a three separate timers and divide sync load betwean them. I tried to use third party timers, but it didn’t help. This number will overflow (go back to zero), after approximately 49 days. From the manual: Returns the number of milliseconds since the device began running the current program. It executes very quickly and has a good resolution (milliseconds). ![]() In loogs I see only ping responses right after the Heartbeat timeout event happend. Returns the number of milliseconds since the device began running the current program. The millis() function is handy for timing things with the Particle Photon (and Electron, and Core). Hadrware is online, and I can send requests to it and get responses. ![]() I meant code in loop just stops to exicute. And this last version gave me hours of stable work, but it still not predicable. The sketch bellow is the last version of my attempts to reach a stable work. And sometimes after that it breaks the loop. But exactly when owerflow happens, blynk shows the Heartbeat timeout message. I wrote a program for Arduino UNO with attached Funshield, which will animate the following pattern on the four vertical LEDs.At any given moment, exactly one LED (of four) is turned on (we are starting with the topmost one). My app perfectly works during that 4294967 milliseconds. For now ESP32 has only 4294967 milliseconds (about 71 minutes) from the start before millis() overflow happens. Hello, I got the strange behaviour of the ESP32 millis() overflows and the blynk Heartbeat timeout.
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