ArduinodelayMicroseconds()
Pauses the program for the amount of time (in microseconds) specified by the parameter. There are a thousand microseconds in a millisecond and a million microseconds in a second.
Currently, the largest value that will produce an accurate delay is 16383; larger values can produce an extremely short delay. This could change in future Arduino releases. For delays longer than a few thousand microseconds, you should use delay() instead.
Syntax
delayMicroseconds(us)
Parameters
us: the number of microseconds to pause. Allowed data types: unsigned int.
Returns
Nothing
Example Code
The code configures pin number 8 to work as an output pin. It sends a train of pulses of approximately 100 microseconds period. The approximation is due to execution of the other instructions in the code.
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
}Notes and Warnings
This function works very accurately in the range 3 microseconds and up to 16383. We cannot assure that delayMicroseconds will perform precisely for smaller delay-times. Larger delay times may actually delay for an extremely brief time.
