Duo Exampple

IFTTT-newFollower.ino

// This #include statement was automatically added by the Particle IDE.
#include "TM1637Display/TM1637Display.h"

TM1637Display display(4, 5); // connect CLK to D4, DIO to D5
int followers = 0;  // or start with number that in your profile

void setup()
{
   Serial.begin(9600);
   
   // subscribe Particle event
   Particle.subscribe("newfollower", followerToggle);    
   
   display.setBrightness(0x0f);
   display.showNumberDec(followers, true);
}

void loop()
{

    // do nothing
}

// Will trigger when event happened
void followerToggle(const char *event, const char *data) {
    Serial.println(data);
    if (strcmp(data, "add") == 0) {  
        followers++;
    }
    display.setBrightness(0x0f);
    display.showNumberDec(followers, true);
    
}