Minecraft wiki entry for Morse_code, associated text: This is the first and gate down. As well as being able to power the block and the wires next to that block, it also powers the wire under nether, you can use this feature to be able to create the next and gate; sort of, but before then, you are going to go through and program the first and gate, now as you have already placed all the torches it is now quite easy to program in, basically you want to pull up your Morse code showing you the different signals and then remove the torch that is it meant to be, remember that it will go in pairs, dash dot, dash dot, dash dot and so on, so to program in A which is dot dash you need to remove the 2nd and the 3rd torch. It is very important to make sure you get the right end display. Although, it can always be done at the end, or with the next step, which is to create the second and gate, this will in the end mean that the signal will only be on when all the criteria is full filled, to stop any of the incorrect lights showing. Now, to do this you are going to want to remember where the gaps are in the torches, for example, by giving the gaps all numbers and writing down which ones are empty. It is suggested to do this row by row. Create a trench directly underneath the torches two deep, and now for everything gap that you had place a block and a redstone wire on to it and feed the redstone wire overall of them to the opposite end of the torches away from where your display is. This is what 'A' would look like underneath, now you want to get this message up to the top layer of your row, where the redstone wire is. You do this using vertical wiring and then feeding a wire to connect them both up, like this. Once this is all connected up to each one, you're complete you should now go test your system for any mistakes.