Odd mills behavior

Development Boards Arduino
1

I am working with a nRF52832 breakout board, and trying to use mills() to time a 30 minute event. Surprisingly, I looks like I’m running into some type of rollover at 512 seconds.

The following code:

#include <Wire.h>
void setup()
{
Serial.begin(9600);
Wire.begin();
}
void loop() 
{ 
  Serial.println(millis())
}

GIves this every time I run. (abbreviated)

511974
511983
511991
511999
8
11
15
19
23

Any help would be appreciated on what needs to change to avoid this.

Thanks,

matt

2

That code won’t compile, so it isn’t what you were running.

3

Hi,

Thanks for catching the error - missing a ;

Here is the corrected code:

#include <Wire.h>
void setup()
{
Serial.begin(9600);
Wire.begin();
}
void loop() 
{ 
  Serial.println(millis());
}