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Other power sources include pressure plates and daylight sensors. With a daylight sensor, you can create a circuit that opens your door during the day, and it closes at night. This automatic daylight door would keep mobs out at night.With a daylight sensor, you can create a circuit that opens your door during the day, and it closes at night. This automatic daylight door would keep mobs out at night. There are several items that can provide an input charge into redstone. These are levers, pressure plates, redstone torches, redstone blocks, buttons, detector rails, tripwire hooks and daylight sensors.Power will travel 15 blocks from a redstone torch through redstone wire to a block. A repeater block will be required to transmit power further away. This is similar to DC power. A repeater block can also add a preset delay of up to 4ms. Power will travel 15 blocks from a redstone torch through redstone wire to a block. Most power components provide power level 15, but a few provide a variable amount of power. Redstone dust transmits power to adjacent redstone dust, but its strength decreases by 1 for each block of redstone dust traveled. A repeater block will be required to transmit power further away. This is similar to DC power. A repeater block can also add a preset delay of up to 4ms. 1. Blocks 2 away- redstone power* Redstone Comparator* Redstone Dust* Redstone Repeater* Redstone Torch2. Attached blocks- redstone power* Button* Detector Rail* Lever* Pressure Plate* Trapped Chest* Tripwire Hook* Weighted Pressure Plate3. Attached blocks- switched power* Activator Rail* Daylight Sensor* Tripwire* Piston and Sticky Piston* Powered Rail* RailUsing redstone you can create basic logic circuits using logic gates in Minecraft. This is a good introduction to logic gates for younger people. It is also a good introduction to how DC circuits function.Examples of Logic Gates* NOT Gate* AND Gate* NAND Gate* OR Gate* NOR Gate* XOR Gate* XNOR Gate* ONLY Gate