Pauses your program for the amount of time (in microseconds) specified as parameter.
us: the number of microseconds to pause. (there are a thousand microseconds in a millisecond, and a million microseconds in a second)
None
int outPin = 8; // digital pin 8 void setup() { pinMode(outPin, OUTPUT); // sets the digital pin as output } void loop() { digitalWrite(outPin, HIGH); // sets the pin on delayMicroseconds(50); // pauses for 50 microseconds digitalWrite(outPin, LOW); // sets the pin off delayMicroseconds(50); // pauses for 50 microseconds }
configures pin number 8 to work as an output pin. It sends a train of pulses with 100 microseconds period.
This function works very accurately in the range 10 microseconds and up. We cannot assure that delayMicroseconds will perform precisely for smaller delay-times.