سوال در مورد دستور digitalWrite ؟؟؟

[magmagmary]

سلام
هیچ مشکلی نداره که ارگومان دوم تابع digitalWrite رو یه متغیر بزارید:

void setup() {
  // initialize digital pin 13 as an output.
  pinMode(13, OUTPUT);
}


// the loop function runs over and over again forever
void loop() {
  int data=0;
  digitalWrite(13, data);   // turn the LED on (HIGH is the voltage level)
  delay(1000);              // wait for a second
  digitalWrite(13, data);    // turn the LED off by making the voltage LOW
  delay(1000);              // wait for a second
}