well basicly what i have is a rs nor latch for elevator up / down movement
Furthermore three (third is not visible in this pic) vertical redstone torch ladders or what u want to call it to bring the pressed buttons up to the top of the elevator where all of the logic is located.
It goes all the way from the bottom of the wolrd up to the top. I have 2 of this vertical wires cause i can adress 4 floors with it. (3 wires for 8 floors ect.). The third one is to show when ever a button is pressed.
In the next 2 Pics you can see 2 rs nor latches which are saving the input from the two vertical wires and two data flip flops which are saving the current position of the elevator
2 RS NOR Latches to save the data from pressed button
2 D Flip Flops to save the adress where the platform currently is
Up to now it is only the basics, next is the logic which determins based on the pressed button and the current location of the elevator whether it has to go up or down. Also this logic activates the detector blocks based on the destination of the elevator (pressed button).
In this image is one condition for downward movement of the elevator. In total i have 3 conditions for downward and also 3 conditions for upward movement.
This are the conditions for the break. It is activated by detector blocks in compination with the destination of the elevator.
This is all the stuff only at the top level of the elevator. At each floor there is also a small room where the pressed buttons are encode into the adress of a floor (for example top floor = 00 ; first floor = 01 ...)
I think thats about it. I have not really planned ahead and just started building. So i could only test stuff while building and so in the video you can see a bit more redstone stuff than needed. Also there are for sure ways to do this more effective, but i don't do this to build the best elevator or the most effectiv wiring or something. I do it for fun and without planning ahead. So this concludes often in kinda chaotic and unstructured wiring.