Build a Piston Drawbridge in Minecraft

Do you have a castle in Minecraft? Do you want to make a drawbridge? Here are the instructions.

Steps

First, in front of your castle/Tower of Power or whatever, dig a 4 long by 4 to 6 wide hole. Make it 4 blocks deep.
Craft 6 sticky pistons. Place them 2 blocks away from the width edge. Make sure that it's 1 away from the long edge, too.
Place blocks on top of the pistons. Connect redstone trails to the pistons.(but not the side center ones) Then, connect the 2 separate redstone trails together. Now take a redstone repeater and place it in between where the 2 separate trails connect.
Now it gets complicated. Take 2 redstone repeaters and place them 1 block away from where the side center pistons are.
Make a staircase shape and place a lever at the top. Connect redstone trail to the lever.
Test your contraption. If it works, cover it all up and prepare for the next step. If not, try repeating the steps again, or toy around with it.
Craft some buckets (craft by 3 iron ingots in a bowl/bucket shape on PC) and fill them with water or lava/magma.
If it works, turn on the bridge. If you covered the hole, then next to the bridge, dig 2 3x1 holes and cover the bottom of that. That will make a pasture shape if done correctly.
Inside those two indentations, pour the lava/water bucket in, then refill the bucket and pour the contents into the opposite side.Keep pouring in the buckets until the holes are full, but not overflowing.
Now you have a drawbridge! Make sure it works, and if you don't understand the instructions, watch Paul Soares Jr's Survive and Thrive Season 2 video on YouTube.