Ok i think you are just trying to waste my time. I was already feeling that at the start but i said maybe he would help but of course not. If you are not willing to help, you can not reply to this thread anyways
I don't think you understand where you are.Let me explain how things work here on the forum.You post your question.We reply with questions.You answer our questions.We move on. (and hopefully , solve your problem)I asked you a question.Do you , or do you not expect us to "design" this product (which obviously you could buy somewhere)for you , yes , or no ? It's a very simple question you have dodged several times now.You're not going to get anywhere here until you answer that question.If that's not good enough for you, you know what you can do.
Here you can see there is some kind of product that i am trying to make with an Arduino https://booth.pm/ja/items/1134643. The only difference will be that i will use an 5110 display for output but the keyboard will remain same
Ok i think you are just trying to waste my time.