نمونه برنامه تست ماژول

// Rotary Encoder Inputs
#define CLK 2
#define DT 3
#define SW 4

int counter = 0;
int currentStateCLK;
int lastStateCLK;
String currentDir ="";
unsigned long lastButtonPress = 0;

void setup() {

// Set encoder pins as inputs
pinMode(CLK,INPUT);
pinMode(DT,INPUT);
pinMode(SW, INPUT_PULLUP);

// Setup Serial Monitor
Serial.begin(9600);

// Read the initial state of CLK
lastStateCLK = digitalRead(CLK);
}

void loop() {

// Read the current state of CLK
currentStateCLK = digitalRead(CLK);

// If last and current state of CLK are different, then pulse occurred
// React to only 1 state change to avoid double count
if (currentStateCLK != lastStateCLK && currentStateCLK == 1){

// If the DT state is different than the CLK state then
// the encoder is rotating CCW so decrement
if (digitalRead(DT) != currentStateCLK) {
counter --;
currentDir ="CCW";
} else {
// Encoder is rotating CW so increment
counter ++;
currentDir ="CW";
}

Serial.print("Direction: ");
Serial.print(currentDir);
Serial.print(" | Counter: ");
Serial.println(counter);
}

// Remember last CLK state
lastStateCLK = currentStateCLK;

// Read the button state
int btnState = digitalRead(SW);

//If we detect LOW signal, button is pressed
if (btnState == LOW) {
//if 50ms have passed since last LOW pulse, it means that the
//button has been pressed, released and pressed again
if (millis() - lastButtonPress > 50) {
Serial.println("Button pressed!");
}

// Remember last button press event
lastButtonPress = millis();
}

// Put in a slight delay to help debounce the reading
delay(1);
}