Hey all,
I have a question regarding the function time_t now() inside the time library:
Inside this function the Arduino built-in timer ( millis() ) is compared to a last update time of the library.
I wonder what will happen after approx. 50 days of operation when the number returned by millis() has an overflow.
As far as I understood the code, the time will stay at its last update time and will not run anymore.
Did anyone observe such a behaviour or is there a certain function which takes care about such an overflow which I did not recognize?
Thanks,
Thomas
time_t now(){
while( millis() - prevMillis >= 1000){
sysTime++;
prevMillis += 1000;
#ifdef TIME_DRIFT_INFO
sysUnsyncedTime++; // this can be compared to the synced time to measure long term drift
#endif
}
...
return sysTime;
}