Scroll feature

[cpyarger]

I am thinking it would be useful to have an extension to the show_text function that takes any text that is too long for the display and scrolls through the characters.

[malcolmholmes]

That would be amazing!

I'm trying to see if I can get the display setting to happen on the second core, so that the main scheduler doesn't disrupt the updates of the display (which can I think cause it to dim or flicker slightly). But that shouldn't conflict with code to scroll characters. Fancy having a go at it?

[cpyarger]

If I can I will try to get around to it. I am poking the idea of making the serial api first. that way its easier to test