1. Arduinoda Fonksiyon ve Interruplar

2. Arduino Fonksiyonlar
Donüşparametresi fonksiyonadı ( giriş parametreleri ){
//fonksiyon içi
return dönüşdeğeri; }

3. void printmessage () {
Serial.println("I'm a function!"); }
loop ()
printmessage ();

4. // basit fonksiyon ornegi
loop () {
int z;
z = addition (5,3);
Serial.print(z); }
int addition (int a, int b)
int r;
r=a+b;
return (r);

5. // referans adresiyle parameter donduren fonksiyon ornegi
void duplicate (int& a, int& b, int& c) {
a*=2;
b*=2;
c*=2; }
loop ()
int x=1, y=3, z=7;
duplicate (x, y, z);
Serial.print(x);
Serial.print(y);
Serial.print(z);

6. // karisik parametreli fonksiyon ornegi
void prevnext (int x, int& prev, int& next) {
prev = x-1;
next = x+1; }
loop ()
int x=100, y, z;
prevnext (x, y, z);
Serial.print(x);
Serial.print(y);
Serial.print(z);

7. // fonksiyon prototipi tanimlama
void odd (int a);
void even (int a);
loop () {
int i;
do {
Serial.println("Type a number (0 to exit): ");
i = Serial.parseInt();
odd (i);
} while (i!=0); }
void odd (int a) {
if ((a%2)!=0) Serial.println ("Number is odd.\n");
else even (a); }
void even (int a)
if ((a%2)==0) Serial.println ("Number is even.\n");
else odd (a);

8. void blink_led();
void setup() {
pinMode(led, OUTPUT); }
void loop() {
blink_led();
void blink_led() {
digitalWrite(led, HIGH);
delay(200);
digitalWrite(led, LOW);

9. // fonksiyonlarda parameter olarak array(dizi) kullanimi
void printarray (int arg[], int length) {
for (int n=0; n<length; n++)
Serial.println (arg[n] );
Serial.println ("\n"); }
loop () {
int firstarray[] = {5, 10, 15};
int secondarray[] = {2, 4, 6, 8, 10};
printarray (firstarray,3);
printarray (secondarray,5);

10. Arduino Interupt Pinleri

11. Arduino Interruptlar volatile byte half_revolutions; unsigned int rpm;
unsigned long timeold;
void setup() {
Serial.begin(115200);
attachInterrupt(0, magnet_detect, RISING);//Initialize the intterrupt pin (Arduino digital pin 2)
half_revolutions = 0;
rpm = 0;
timeold = 0; }
void loop()//Measure RPM {
if (half_revolutions >= 20) {
rpm = 30*1000/(millis() - timeold)*half_revolutions;
timeold = millis();
half_revolutions = 0;
//Serial.println(rpm,DEC); }
void magnet_detect()//This function is called whenever a magnet/interrupt is detected by the arduino
half_revolutions++;
Serial.println("detect");

12. // toggles LED when interrupt pin changes state int pin = 13; volatile int state = LOW; void setup() { pinMode(pin, OUTPUT); attachInterrupt(0, blink, CHANGE); } void loop() digitalWrite(pin, state); void blink() state = !state;