Arduino control tm1637 common positive four digit nixie tube

 

#include "TM1637.h"

//  Two pins of the nixie tube are defined here 
#define CLK 2  
#define DIO 3
int i;
TM1637 tm1637(CLK,DIO);

void setup(){
  Serial.begin(9600);
  tm1637.init();
  //  Decimal switch ,1 To open ,0 To close 
  tm1637.point(0);
  // BRIGHT_TYPICAL = 2,BRIGHT_DARKEST = 0,BRIGHTEST = 7;
  tm1637.set(BRIGHT_TYPICAL);
}

void loop(){
  for (i = 1; i < 5; i++){
    //  first place 
    tm1637.display(0,i);
    //  Second 
    tm1637.display(1,i+1); 
    //  Third 
    tm1637.display(2,i+2);
    //  Fourth place 
    tm1637.display(3,i+3);
    delay(1500);
  }
}