I finally have time to tackle again the trouble i found with the axis, i have tested my design with 6 rotaries, 8x8 74hc165 (64 buttons) and 8 axis. Everything works just fine until i connect the 7th axis, then the arduino crash it.
As you can see its quite a circuit, the big two jumper in the midle(J7 , and J8) represent the micro arduino pins, the bunch of jumper to the right are the axis, the one to the left with diodes are the rotaries, and the are three jumpers more, one for the 74hc165 (is the one on the top), the other two will be for leds (one just under the one for 74hc165, the other at the bottom of the image)
[url=https://ibb.co/jDKFn2J][/url]

Any help would be wlecomed!

Attached Files connection eschema.jpg
Last edited by E69_Jack_Aubrey; 05/08/20 09:13 PM. Reason: Image not showing