What new technology helped the ottoman troops expand into the Balkans?

The Ottoman troops utilized advanced artillery technology, particularly large cannons, which played a crucial role in their expansion into the Balkans. These cannons, such as the famous Great Bombard used during the siege of Constantinople in 1453, allowed the Ottomans to breach fortified walls and strongholds effectively. This military innovation, combined with strategic mobility and effective logistics, enabled the Ottomans to conquer and control vast territories in the region.