fade-w-button.ino

#define SWITCH_PIN 1
#define LED_PIN 2

Timer bounceTimer(200, bounceFunction, 1);

bool switchValue = 0;
bool switchState = 0;
bool direction = 0;
int fadeCounter = 0;
int fadeVal = 0;

void setup() {
    pinMode(SWITCH_PIN, INPUT_PULLUP);
    pinMode(LED_PIN, OUTPUT);
}

void loop() {
    
    switchValue = digitalRead(SWITCH_PIN);
    
    if(switchValue == 0){
        bounceTimer.start();
        while(bounceTimer.isActive()){
            // do nothing
        }
    }
    
    if(switchState == 1){
        fade();
    }
    else{
        digitalWrite(LED_PIN, LOW);
    }
}

void bounceFunction(){
    switchState = !switchState;
    Particle.publish("Button", String(switchState));
}

void fade(){
    if(direction == 1){
    fadeCounter++;
    }
    else{
        fadeCounter--;
    }
    if(fadeCounter >= 255){
        direction = 0;
    }
    if(fadeCounter <= 0){
        direction = 1;
    }
    analogWrite(LED_PIN, fadeCounter);
    delay(10);
}