t_count.c

void loop() {
  
  int tSignal_status = digitalRead(tSignal);

  if (tSignal_status == 1) {
    status = 1;
    prev_status = 1;
  }
  
  if (tSignal_status == 0) {
    status = 0;
  }

  if (status == 0 && prev_status == 1) {
    tCount++;
    prev_status = 0;
    Serial.println(tCount);
  }
  
  matrix.print(tCount);
  matrix.writeDisplay();
}