Writing code problems

Projects Programming
1

Hello, this is my first post. I'm just getting into arduino and basically copying other peoples stuff at the moment and modifying it.

At the moment I am messing around with an LED Matrix 8x8 but when I COPY the code precisely, I get errors. I am including the correct libraries.

I have noticed aswell that the lettering is orange and blue for things such as 'for' 'ledWrite' 'Byte' etc.

But even though I type it correctly #my lettering is BLUE.

I am only currently trying to draw simple 64 bit images with the matrix but I am struggling to set it up.

This is what I am typing:

#include <LedControl.h>

LedControl 1c=LedControl(12,11,10,1);

unsigned long DelayTime=100;

However when I verify this i get an error;

"
sketch_jun17a:3: error: invalid suffix "c" on integer constant
sketch_jun17a:3: error: expected unqualified-id before numeric constant
invalid suffix "c" on integer constant
"

Im sure there is something silly i'm doing buy any help is appreciated.

2

You might want to post your full code.

3

CWashburn:
You might want to post your full code.

This is all I have at the moment, I was copying it from a youtuber and noticed the lettering was a different colour. I did type everything but deleted that :frowning:

its from this:

4

It looks like you are trying to create an object named 1c and the compiler thinks that it is a number and cannot understand the c suffix. Try changing all the instances of 1c to c1 (or a meaningful name) and try compiling again.

5

Thanks, that has solved my problem this time. Do you know why my lettering is blue on some text when others have it orange?

6

Orange is for keyword of libraries you use. If you type digitalWrite it will be orange as well. :wink:

var names cannot start with a digit, use a character instead. After the first character it's okay,

7

Each library has a keywords.txt file that defines which words are to be
coloured when using it... Go have a nosey, that's what open-source is all about