#include "SevSeg.h"
SevSeg sevseg; //Instantiate a seven segment controller object

  int GREEN = 0;
  int RED = 1;

void setup() {

  byte numDigits = 4;
  byte digitPins[] = {2, 3, 4, 5};
  byte segmentPins[] = {6, 7, 8, 9, 10, 11, 12, 13};
  bool resistorsOnSegments = false; // 'false' means resistors are on digit pins
  byte hardwareConfig = COMMON_ANODE; // See README.md for options
  bool updateWithDelays = false; // Default 'false' is Recommended
  bool leadingZeros = false; // Use 'true' if you'd like to keep the leading zeros
  bool disableDecPoint = false; // Use 'true' if your decimal point doesn't exist or isn't connected
  

  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
  sevseg.setBrightness(90);

  pinMode(GREEN, OUTPUT);
  pinMode(RED, OUTPUT);

}

void loop() {
  static unsigned long timer = millis();
  static int deciSeconds = 30;


  if (millis() - timer <= 100)
   {
    timer += 100; deciSeconds--; 
      digitalWrite(GREEN, HIGH);
      digitalWrite(RED, LOW);
  

    if (deciSeconds <0)
     { 
      deciSeconds=0;
      digitalWrite(GREEN, LOW);
      digitalWrite(RED, HIGH);

    }
    sevseg.setNumber(deciSeconds, 1);
  }

  sevseg.refreshDisplay(); // Must run repeatedly
}

/// END ///