Uptime fold over

[Jean-LG]

the uptime counter is coded with an uint32. the uptime is in milliseconds therefore after 49 days (2^32 milliseconds), uptime folds over. Moreover some coversions in the code from uint32 to long give negative values. for uptime after 49/2=25.5 days (2^31 ms)

Some possible solution for ESP32 arch:

In AutoConnectPageImpl.hpp line 1009
#elif defined(ARDUINO_ARCH_ESP32)
long millisecs = esp_timer_get_time() / 1000;

esp_timer_get_time() returns an int64_t (see https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/esp_timer.html#_CPPv418esp_timer_get_timev)

It would be then usefull to convert either to seconds instead of keeping milliseconds in an uint32 variable, or use int64_t all the way long. Not sure if the arduino compiler handles properly uint64

JL

[Jean-LG]

modified AutoConnectPageImpl.hpp this way, under tests for the next 25 days...

template
String AutoConnectCore::_getSystemUptime() {
#if defined(ARDUINO_ARCH_ESP8266)
unsigned long secs = millis()/1000;
#elif defined(ARDUINO_ARCH_ESP32)
long secs = esp_timer_get_time() / 1000000;
#endif
int systemUpTimeM = static_cast((secs / ( 60)) % 60);
int systemUpTimeH = static_cast((secs / ( 60 * 60)) % 24);
int systemUpTimeD = static_cast(secs / ( 60 * 60 * 24));
String uptime = String(systemUpTimeM) + "m ";
if (systemUpTimeH > 0)
uptime += String(systemUpTimeH) + "h ";
if (systemUpTimeD > 0)
uptime += String(systemUpTimeD) + "d ";
return uptime;
}