I have been reading these pages since I built my own Simucube 1, almost 2 years ago. It has been a very informative and helpful source of ideas and solutions.
Now I decided to upgrade my button box, and would like to use the full potential that Simucube has to offer but I am stuck.
I am trying to work out a solution for using the shift function WITHOUT having a physical shift button.at all.
Unless I made a mistake in the attached drawing, I should be fine with the port X12 UPPER and my first 12 buttons.
I am a little unsure about how I configured X12 LOWER in the drawing:
I want to effectively have 6 encoders rather than 3 that serve a second function when shift is pressed.
The problem I see here (I am not an expert in electronics) is that if I join pin 8 ground with X12UPPER pin 7, encoders 1.2 and 3 will clone 4.5 and 6.
In order to avoid that I put a diode between 1.2.3 and 4.5.6 ground pins. However i am not sure whether this will work.
Should this work, what value should the diode be? Could it be an LED instead, so that I can place it on the button box and see when my shift function is enabled.
Any thoughts will be highly aprreciated
Thank you for taking the time to read this