Rotary encoder menu

Projects Programming
1

Hi all,

First post on the forum. I am using this code: Arduino Project Hub

I have mangaged to convert it to work with a OLED display and that's working great, I can also change the layout and design no problem.

What i need some guidance on is how to make new menus and how to alter the length of a menu, for instance giving more than 3 options in the language menu.

Any help much appreciated.

2

Folks would be better able to assist if they could see your code - which code being enclosed in code tags </> above the smilies and indented with t.

3

I tried to post it but it kept saying that the post was too long?

4

Can you extract a portion that's under the limit *and * illustrates your issue? Just getting an idea of the structure and the approach you've taken may enable someone to offer advice. The entire sketch can also be included as a .ino attachment to the post. If you're using canned code note that fact.

5

Attached the original code.

Thanks

Nokia5110MenuRotary.ino (8.87 KB)

6

Which Arduino are you running that on? That code uselessly pisses away resources wrapping string literals in instances of the String class. There IS a better way.

An example of your menu structure would be necessary. That code does not care how long a list of items is, so adding more or less doesn't APPEAR to be a problem.

7

Ah, well that doesn't sound good.

Currently I am testing it on an UNO but I hope to get it running on a pro mini.

How would I go about creating a better code. I have limited knowledge but happy to read and learn.

Cheers

8

How would I go about creating a better code.

Use c strings - NULL terminated arrays of chars - instead of Strings. A String has to wrap a string anyway. Save the wrapper space and the dynamic allocation/deallocation of memory by not using Strings. All the methods that a String provides are done so using standard string functions. Learn to use them.

9

Thanks for the heads up PaulS, Just a quick google has me thinking about how bad Strings are and how they effect the memory.

I still need to work out how to make new menus, and bigger menus, but I am sure others will have ideas on how to do that.

Cheers