Unsigned long problem

Projects Programming
1

I am building a timeclock with multiple outputs.
Here is the part that I'm having problem with.
using DS3231 I read ss(seconds), mm(minutes) hh(hours) then convert it all to seconds. I'm getting readings > 4,000,000,000
1.8.14 Hourly Build 2021/01/29 11:33

unsigned long timecode;
int ss = 30;
int mm = 6;
int hh = 10;
void setup() {
timecode = ((ss) + (mm * 60) + (hh *3600));
//  = 36390
// 23:59:59 should = 86,399 maximum
Serial.begin(57600);
}

void loop() {
Serial.println(timecode);
timecode ++;

}
2

Try
timecode = ((ss) + (mm * 60UL) + (hh *3600UL));

3

Great works fine. thank you.

4

Ask if you need an explanation.

5

Found it. a 'ul' or 'UL' to force the constant into an unsigned long constant. Example: 32767ul

6

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