1=wire 2=npn transitor 3=battery 4 = lamp 5 = up/down wire 6 = lever 7 = NOT gate use left and right keys to turn them around before you place them 8 = diode use left and right keys to turn them around before you place them 9 = PNP transistor use left and right keys to turn them around before you place them hover over something and click space to break something hover over a lever and click t to turn it on and off grey = off red = on ================================================== welcome to my wiring simulator! so basically i was playing around with circuits irl and i thought THIS IS SO FUN! so i decided to make something like it in scratch. when using transistors put one wire on top indicating if it is letting electricity through or not and one on the side for the current. anyway so this is meant for making AND gates maybe some OR gates and it took me a while but i made an XOR gate. for those who dont know what logic gates are - they are like gates for electricity with like two inputs and a certain output you should really watch some vids on it. Things i made: a NOT gate light up system an XOR gate an OR gate a NAND gate an AND gate a XNOR gate and a 2-bit adder