ESP32 Forum

Howdy,
You have strayed away from anything ESP32 related in 100% pure Arduino land ... let me suggest that you go read and study here:

https://www.arduino.cc/en/Reference/HomePage

or get yourself a book on Arduino. There are lots and lots of great Arduino knowledge sources out there. Assume that Arduino IDE and libraries run just fine on ESP32 as well as a real-world Arduino and take it from there.

For Arduino timers see my instructable
Coding Timers and Delays in Arduino https://www.instructables.com/id/Coding ... n-Arduino/