Untitled

#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

// --- FIXED HARDWARE CONFIGURATION FOR PHYSICAL MODULE ---
// GENERIC_HW reverses the default data block direction, which fixes mirroring.
#define HARDWARE_TYPE MD_MAX72XX::GENERIC_HW 
#define MAX_DEVICES 4 

#define CLK_PIN   13 
#define DATA_PIN  11 
#define CS_PIN    10 

MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);

int minutes = 5;  
int seconds = 0;  

unsigned long lastUpdateTime = 0; 
char timerString[6]; 

void setup() {
  P.begin();
  P.setIntensity(5);             
  P.displayClear();
  P.setTextAlignment(PA_CENTER); 
  
  // No software zone effects needed here yet! 
  // Let the GENERIC_HW driver do the heavy lifting first.

  updateTimerDisplay(); 
}

void loop() {
  if (millis() - lastUpdateTime >= 1000) {
    lastUpdateTime = millis();
    
    if (seconds == 0) {
      if (minutes == 0) {
        P.print("BOOM");
        while(true); 
      } else {
        minutes--;
        seconds = 59;
      }
    } else {
      seconds--;
    }
    
    updateTimerDisplay();
  }
}

void updateTimerDisplay() {
  sprintf(timerString, "%02d:%02d", minutes, seconds);
  P.print(timerString);
}