Wisk flour, baking powder, baking soda and salt together. Set aside. Lightly beat egg and add honey, vanilla extract, buttermilk and melted butter. Lightly fold in banana. Pour wet mixture in to dry ingredients. Wisk only until combined. Lumps are okay. Don't overmix or pancakes will be tough. Using a small amount of oil or butter in skillet pour out about 1/4 cup batter and drop 3 or 4 blueberries (or to your taste) on top. Flip when bubbles appear.