So, I'm making a "map" to try to impress my friends with my redstone and commands, and I wanna make a voting system for a bedwars game. So, I want to make it so that two people have to agree on one mode to prevent complete chaos(there's gonna be three people including me), and I want to make it so that once those two players step on certain pressure plates, it will run a command. If one player steps on a pressure plate of a certain mode, it's not chosen. If no one steps on the pressure plates, the mode isn't chosen either.
Minecraft – How to make sure that both signals are powered
minecraft-redstone
Related Solutions
There are 3 designs in mind:
and also this
The third design is slowest but it is also the smallest,
If you have multiple signals moving down in parallel, your best option is probably circuit C from http://www.minecraftwiki.net/wiki/Redstone_Circuits#Vertical_transmission. If this pattern is staggered 1 block apart on each successive line, adjacent lines should not interfere with each other. This circuit has the additional advantage that the signal can be extracted at any height.
Best Answer
You need to create an AND gates.
How it works is that you have 3 levers/inputs all leading up into 3 blocks with redstone torches. Then there will be redstone running into your command block. Im not able to take screenshots right now but will edit the post asap.