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

#define CLK1 2
#define DIO1 3

#define CLK2 10
#define DIO2 11

TM1637Display display1(CLK1, DIO1);
TM1637Display display2(CLK2, DIO2);

/////////////////////////////////////////////////////

int lightPen1 = A0;
int lightPen2 = A1;

int lightVal1;
int lightVal2;

int dt1 = 20; // changes here have little effect beyond missing the count all together
int dt2 = 20; // changes here have little effect beyond missing the count all togethe
///////////////
int bluePin = 9;
int grnPin = 6;
////////////////////////////////////////////////////
int numb1 = 0;
int numb2 = 0;

///////////////////////////////////////////////

unsigned long lastRead = 0;
int readDelay = 50;
int lastVal1;
int lastVal2;


void setup() {
  // put your setup code here, to run once:

  pinMode (bluePin, OUTPUT);
  pinMode (grnPin, OUTPUT);

  pinMode (lightPen1, INPUT);
  pinMode (lightPen2, INPUT);
  display1.setBrightness(0x0f);
  display2.setBrightness(0x0f);


  Serial.begin (9600);
}

void loop()
{

  if (millis() - lastRead >= readDelay) {
    lastRead = millis();
    lightVal1 = analogRead(lightPen1);
    lightVal2 = analogRead(lightPen2);
  }

  if (lightVal1 != lastVal1) {
    lastVal1 = lightVal1;
    Serial.println (lightVal1);
    if (lightVal1 > 500) {
      digitalWrite (bluePin, LOW);
    }
    if (lightVal1 < 500) {
      digitalWrite (bluePin, HIGH);
      numb1++;
      display1.showNumberDec(numb1, false);
      Serial.print("Lap count 1: ");
      Serial.println(numb1);
    }
  }

  if (lightVal2 != lastVal2) {
    lastVal2 = lightVal2;
    Serial.println (lightVal2);
    if (lightVal2 > 500) {
      digitalWrite (grnPin, LOW);
    }
    if (lightVal2 < 500) {
      digitalWrite (grnPin, HIGH);
      numb2++;
      display2.showNumberDec(numb2, false);
      Serial.print("Lap count 2: ");
      Serial.println(numb2);
    }
  }

}