About the % symbol meaning modulus

Projects Programming
1

What does the % modulus symbol mean in dumbest terms? I don't understand.
Thank you.

2

It returns the remainder of the integer division of the left side by the right side.
e.g.
7 % 4 = 3

3

Have a look at: http://arduino.cc/en/Reference/Modulo

4

Okay cool,
Thanks

5

"%" can be used to display stuff like minutes and seconds from a total number of seconds. For example:

int totalSeconds = 250;
int minutes = totalSeconds / 60;  //minutes = 4
int seconds = totalSeconds % 60;  //seconds = 10 
Serial.print(minutes);
Serial.print(":");
Serial.print(seconds);

Serial Output:
4:10

6

John_S:
"%" can be used to display stuff like minutes and seconds from a total number of seconds. For example:

int totalSeconds = 250;

int minutes = totalSeconds / 60;  //minutes = 4
int seconds = totalSeconds % 60;  //seconds = 10
Serial.print(minutes);
Serial.print(":");
Serial.print(seconds);



What if it is 4:09? Will it display correctly?
Serial Output:
4:10
7

What if it is 4:09? Will it display correctly?

No, it will show 4:9
Thanks for the heads up. To get the leading zero, you need an extra line of code:

Serial.print(minutes);
Serial.print(":");
if (seconds<10) Serial.print("0");
Serial.print(seconds);