mussel5/mussel5.ino



const int buttonPin = 9;    
const int redLED = 3;
const int greenLED = 4;
const int yellowLED = 5;

int buttonState = HIGH;   
int lastButtonState = HIGH;
int clickCount = 0;
unsigned long lastDebounceTime = 0;
const unsigned long debounceDelay = 50;

void setup() {
    pinMode(buttonPin, INPUT_PULLUP);
    pinMode(redLED, OUTPUT);
    pinMode(greenLED, OUTPUT);
    pinMode(yellowLED, OUTPUT);
    Serial.begin(9600);
}

void loop() {
    int reading = digitalRead(buttonPin);

    // Debounce logic
    if (reading != lastButtonState) {
        lastDebounceTime = millis();
    }

    if ((millis() - lastDebounceTime) > debounceDelay) {
        if (reading == LOW && lastButtonState == HIGH) {
            clickCount++;
            if (clickCount > 3) {
                clickCount = 0; // Reset cycle after 3 clicks
            }
            updateLEDs();
        }
    }

    lastButtonState = reading;
}

void updateLEDs() {
    // Turn off all LEDs first
    digitalWrite(redLED, LOW);
    digitalWrite(greenLED, LOW);
    digitalWrite(yellowLED, LOW);

    switch (clickCount) {
        case 1:
            digitalWrite(redLED, HIGH);
            Serial.println("State: Angry (Red LED ON)");
            break;
        case 2:
            digitalWrite(greenLED, HIGH);
            Serial.println("State: Happy (Green LED ON)");
            break;
        case 3:
            digitalWrite(yellowLED, HIGH);
            Serial.println("State: Unsure (Yellow LED ON)");
            break;
        case 0:
            Serial.println("State: Off (All LEDs OFF)");
            break;
    }
}