And yes, with an encoder I can now also tune the SPD of the FCU, and get the result on a 7-segment display. Ok, I haven’t connected my MAX7219 yet, but I can see the numbers change in sync with the sim.
Later today I will finish my FCU mockup, which contains 3 digits (it’s only a mockup and I didn’t want to use all my 7-segment displays). The mockup contains some buttons (including my own Korry switches), a push-pull encoder (made the push pull mechanism myself) including the 100/1000 selector for the SPD dial, a 3-digit display, some more LED’s and backlighting. The below are some drawings in Sketchup.
Now that I seem to understand the basics, I will finish the hardware first, and then hook it up to MobiFlight. So you hear back from me!