millis() — Maple v0.0.12 Documentation

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# millis()

Returns the number of milliseconds since the Maple board began running the current program. This number will overflow (go back to zero) after approximately 50 days.

## Library Documentation

uint32 millis(void)

  Returns time (in milliseconds) since the beginning of program execution.

  On overflow, restarts at 0.

  See: | micros()

## Example

The following time prints the value returned by `millis()` roughly once per second:

    unsigned int time;

    void setup() {
    }

    void loop() {
      SerialUSB.print("Time: ");
      time = millis();
      // prints time since program started
      SerialUSB.println(time);

      // wait a second so as not to send massive amounts of data
      delay(1000);
    }

## Tip

Since the return value for `millis()` is an unsigned long, overflow errors may occur if you try to do math with other data types, such as chars.

## See Also

- micros
- delay
- delayMicroseconds

License and Attribution

Portions of this page were adapted from the Arduino Reference Documentation, which is released under a Creative Commons Attribution-ShareAlike 3.0 License.

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