Delay
Delay
(io.github.jabrena.juno.util) pauses the program for a fixed amount of time. It has three static methods:
| Method | Pauses for |
|---|---|
Delay.millis(n) |
n milliseconds |
Delay.micros(n) |
n microseconds |
Delay.seconds(n) |
n seconds |
A value of zero or less returns at once, so a delay can be computed without checking it first.
Blinking an LED
The classic example pauses for half a second in each state:
import io.github.jabrena.juno.hardware.ArduinoUno;
import io.github.jabrena.juno.hardware.gpio.DigitalOutput;
import io.github.jabrena.juno.util.Delay;
public class Blink {
public static void main(String[] args) {
DigitalOutput led = DigitalOutput.of(ArduinoUno.getGpio().getBuiltinLed());
while (true) {
led.high();
Delay.millis(500);
led.low();
Delay.millis(500);
}
}
}
Short pauses with micros
Delay.micros is for pauses shorter than a millisecond, such as the timing of a single signal edge:
led.high();
Delay.micros(10); // 10 microseconds
led.low();
Longer pauses with seconds
Delay.seconds is a convenience over Delay.millis, for pauses measured in whole seconds:
Delay.seconds(2); // the same as Delay.millis(2000)