in letzter Zeit sehe ich ab und zu mal ein Gerät names: "W7JWVV75J", Gerätinformation"MSFT 5.0 18:03:73:DB:E6:A5" im Router. Der ist über Lan angeschlossen und habe alle Ports auf der Switch und Fritz nachgeprüft und kann von meinem Standpunkt aus, auschließen dass es nicht existiert. (so meine Vermutung).
I clear the timer, set it up in Input Capture Mode, set the pre-scaler to ClkIO/1024, and enable Overflow interrupts, as the event I'm timing can take up to 10 seconds, which means the timer may overflow twice. I maintain a software count, in a uint32_t that is increment by 65536 every time an overflow occurs.
I'm posting here a simple project to create an interrupt timer on an ESP32 board for version 3.1.1 by Esspressif Systems. I had difficulties to find updated information to make this code, I hope it can be useful to someone ! This code creates an interrupt every 100ms and counts the number of interrupts. There is the code : #include "esp32-hal-timer.h" const int ledPin = 2; // pin of the LED ...
As you understand I need a hardware timer (counting clock ticks). Millis () makes demanding to ckeck if "old value" is smaller than millis () value (normal run from start until rollover) or greater (1st time after rollover) before any compare.
Namely, a countdown timer with six seven segment displays that shows the remaining months, days, and hours set by the user via push-buttons. The actual countdown would then be controlled by an RTC module (I read somewhere that the Arduino's internal timer is not accurate for extended time periods).