     uint8_t hour = tm.Hour;
     if (hour > 12)
         hour -= 12;
-    sprintf(timeBuffer, "%d:%02d", hour, tm.Minute, tm.Second);
+    sprintf(timeBuffer, "%d:%02d", hour, tm.Minute);
     if (hour < 10)
         x = 4;
     matrix.setFont(gohufont11b);


  // setup matrix
  matrix.begin();
  //matrix.setScrollFont(fonttomthumb);
  matrix.setScrollFont(font3x5);
  //matrix.scrollText("ABCDEFGHIJKLMNOPQRSTUVWXYZ", -1);
  matrix.scrollText("Hello World", -1);
}

void loop() {

      Serial.println();

      /* Draw Error Message to SmartMatrix */
      matrix.setFont(font3x5);
      sprintf(timeBuffer, "Stopped");
      matrix.drawString(x, MATRIX_HEIGHT/2, clockColor, "Stopped");
      matrix.swapBuffers();
