Display image in SD folder

[flashko]

@leg2027

With String it's very easy, that's why I keep it for now.
But since you said char is more suitable, I'll try to find a relatively easy way to do the same with char instead of String.

I don't think it's a problem to use Strings if you're careful. See the reserve() command for this purpose.

How to use Arduino Strings

Arduino Strings have been getting some bad press, but it turns out they are not that bad and are very usable in sketches. My tutorial Taming Arduino Strings goes into the details. The summary is :- For small sketches with a few Strings, just use them as convenient. For small sketches with a few Strings, just use them. The good news is if you are using an UNO or Mega2560, then using Strings is extremely safe, even if you run out-of-memory. If you run out-of-memory, you will just not get all the…