Single input variable rotation controller

A small and compact way to controller the rotation speed & direction with a single input in the form of a redstone signal strength.

It can be used to manually (or remotely by replacing the Throttle Lever by a Redstone Link) control a gantry, a ship propeller, a tank track, or a gun turret made with the Create Big Cannons addon; replacing the Analog Levers with another redstone input is possible for integration in more complex machines & contraptions.

To use it, set the neutral position (where no rotation power will be transmitted) in redstone signal strength using the two Analog Levers; same signal strength on both levers for a single neutral signal strength value, or you can make a neutral range value by putting the levers at different power levels (the lever next to the throttle lever for upper threshold and the far one for lower threshold); you can also remove the neutral position by putting the upper threshold lever at a value below the lower threshold (I recommend a difference of only 1, any higher isn't really useful but you do you).

Now when you give a redstone signal of any strength with (or in place of) the Throttle Lever, the rotation will be stopped in the neutral position signal strength, reversed when redstone signal lower than neutral lower threshold, and proportional to the difference between neutral and signal strengh (for a difference of 1 in signal strength, the rotation output speed will be 6.25% of the input speed).

Example: (see associated image); let's say the neutral position is set at signal strength 7 by the Analog Levers, and the input rotation is 32rpm counter-clockwise; if we input a signal strength of 3, the difference between 7 & 3 is -4 so the rotation will be reversed and with a speed of 4 * 6.25 = 25% of the input speed and 25% of 32 is 8 so we have an output of -8rpm.