The delayMicroseconds() function accepts a single integer (or number) argument. This number represents the time and is measured in microseconds. There are a thousand microseconds in a millisecond, and a million microseconds in a second.
Currently, the largest value that can produce an accurate delay is 16383. This may change in future Arduino releases. For delays longer than a few thousand microseconds, you should use the delay() function instead.
delayMicroseconds() function Syntax
delayMicroseconds (us) ;
where, us is the number of microseconds to pause (unsigned int)
Example
/* Flashing LED
* ------------
* Turns on and off a light emitting diode(LED) connected to a digital
* pin, in intervals of 1 seconds. *
*/
int ledPin = 13; // LED connected to digital pin 13
void setup() {
pinMode(ledPin, OUTPUT); // sets the digital pin as output
}
void loop() {
digitalWrite(ledPin, HIGH); // sets the LED on
delayMicroseconds(1000); // waits for a second
digitalWrite(ledPin, LOW); // sets the LED off
delayMicroseconds(1000); // waits for a second
}
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