Hello there. I'm working on an arduino nano project, however I am completely new to arduino programing and have a problem. I am trying to use a for loop the following way: for (LValue = 0; LValue < 16; LValue++){} For what I understand, it should be increasing LValue by 1 and running the code ins…

Thanks for posting the entire sketch. Hopefully you have it properly formatted/indented in your copy -- makes it a lot easier to read. All the comparisons need to use double-equal ==. A single equal sign is assignment; the result of that expression is the value assigned. In your case start loop…

[image] petr0: if (UValue = 1){ Pay attention to your use of "=". That is NOT how you write a compare instruction.

[image] petr0: if (LValue = 1) (And every other if you have) Go and study the difference between = and ==, then you will find your problem. (Common beginner mistake) Edit @kenb4 and @Paul_KD7HB beat me to it.

When you fix that I suggest you next study what switch / case does. Hint: it makes your long if / else / if a lot tidier.

Yeah, but now the OP does not have to hunt for the answer. Perhaps it is better because AI would also know the answer.

nothing like the feeling of being stupid I guess, thank you all

IT WORKS!!! Thank you so much everyone!

You can avoid that feeling by using a little bit of debugging. We all have been there!

Yeah, but I feel like that feeling still gets all of us sometimes :slight_smile:

We avoid that feeling by writing a single section of code at a time and then add serial.Print() statements to prove that one new bit of code actually works as intended. Then repeat for the next piece of code.

For loop problems

Projects Programming

PerryBebbington March 5, 2025, 6:07pm 13

Here's one of my stupid mistakes, enjoy:

Topic		Replies	Views
For loops broken...or more to the point not breaking Programming	13	256	September 2, 2026
Void loop and if else not looping Programming	9	175	March 6, 2026
Low voltage output pin 9 Programming	57	1183	July 18, 2025
Non capisco come uscire dal conteggio Software	8	239	December 31, 2024
Newbe needs help with 'for' loop - Thanks Programming	7	179	June 7, 2024

For loop problems

Related topics