sevseg_ex1.ino

#include "SevSeg.h"

SevSeg sevseg; //Instantiate a seven segment controller object

void setup() {
  byte numDigits = 4;
  byte digitPins[] = {3, 2, 1, 0};
  byte segmentPins[] = {11, 10 ,9 ,8, 7, 6, 5, 4};
  //sevseg.begin(COMMON_CATHODE, numDigits, digitPins, segmentPins);
  sevseg.begin(COMMON_ANODE, numDigits, digitPins, segmentPins);
  sevseg.setBrightness(70);
  sevseg.setNumber(1234, 0);
}
void loop() {
  static unsigned long timer = millis();
  static int deciSeconds = 0;
  
  if (millis() >= timer) {
    deciSeconds++; // 100 milliSeconds is equal to 1 deciSecond
    timer += 100; 
    if (deciSeconds == 10000) { // Reset to 0 after counting for 1000 seconds.
      deciSeconds=0;
    }
    sevseg.setNumber(deciSeconds, 1);
  }
  

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