int count_High = 0;
int count_Low = 0;
int hallPin = D3;
int ledPin = D8;
int trigPin = D6;
int echoPin = D5;
int led2 = D7;

bool state = true;

void setup() 
{
    Serial.begin( 9600 );
    
    pinMode(ledPin, OUTPUT);
    pinMode(hallPin, INPUT);
    
    pinMode(trigPin, OUTPUT);
    pinMode(echoPin, INPUT);
    pinMode(led2, OUTPUT);
    
    Particle.variable("hall sensor", state);
 
}


void loop() 
{
    delay (10);

    if ( digitalRead(hallPin)  == HIGH  )
    {
        state = true;
        Particle.publish("Box", "OPEN");
        
    }
    else
    {
        state = false;
        Particle.publish("Box", "CLOSED");
    }
    
    digitalWrite (ledPin, state);
    
    long duration, distance;
    
    digitalWrite(trigPin, HIGH); 
    
    delayMicroseconds(10); 
    
    digitalWrite(trigPin, LOW);
    
    duration = pulseIn(echoPin, HIGH);
    
    delayMicroseconds(10); 
    
    digitalWrite(trigPin, LOW);
    
    distance = (duration/2) / 29.1;
    
    if (distance < 10) 
    {  
        digitalWrite(led2,HIGH);
        Particle.publish("Hand", "YES");
    }
    else 
    {
        digitalWrite(led2,LOW);
        Particle.publish("Hand", "NO");
    }

    if (distance >= 200 || distance <= 0)
    {
        Serial.println("Out of range");
    }
    else 
    {
        Serial.print(distance);
        Serial.println(" cm");
    }
    delay( 500 );

}