#include <Arduino.h>
#include <TM1637Display.h>

// Module connection pins (Digital Pins)
#define CLK 2
#define DIO 3

#define humanPresenceRange 1200
#define humanPresenceDigReadingCountLimit 4

int sensor = 10; 
int val = 0;


TM1637Display display(CLK, DIO);

int humanPresenceCounter = 0;
bool incrementCounter = true;

int humanPresenceDigReadingCount = 0;

void setup() {
  Serial.begin(115200);

  pinMode(sensor, INPUT);
  
  // wait until serial port opens for native USB devices
  //while (! Serial) {
  //  delay(1);
  //}
  

  // power 
  //Serial.println(F("VL53L0X API Simple Ranging example\n\n")); 

  display.setBrightness(0x0f);

  display.showNumberDec(0, false);
}


void loop() {

  val = digitalRead(sensor);
  
  if(val == HIGH) {
    
    if(humanPresenceDigReadingCount == 1) {
      humanPresenceDigReadingCount = 0;
      humanPresenceCounter++;
      display.showNumberDec(humanPresenceCounter, false);
    }
  }
  else {
    humanPresenceDigReadingCount = 1;
  }
}