Minecraft 1.5 is called the "Redstone Update" because it greatly expands upon redstone mechanisms.
For a lot of players redstone is an ore that can do really cool things...if you can get over the learning curve.
Luckily for us this latest update adds a few redstone devices that have straightforward uses. Possibly the most important addition is the hopper
, which moves items one space in any direction except up. Place a hopper and anything thrown into it will be collected. Place a hopper below or on the side of
another hopper, and items tossed in the top will move from one hopper's inventory to the next. TIP: Hold shift to place a hopper next to another hopper or chest. Place a chest underneath and items will move from the
top to the bottom. Have a minecart with a chest ride under a hopper and it will pick up an item.
Also new to Minecraft is the redstone block. The redstone block provides a constant source of power. More importantly, it can be moved by
pistons, which allows for easier circuit creation.
The daylight sensor outputs a redstone signal when in direct exposure to the sun. This has a number of practical uses, particularly in
agriculture. It can be used to automate the growth and collection of crops and livestock. It can also be used to make any lamp turn off during the day
and on at night.