NeoPixel and 2D array

Projects Programming
1

Hi everyone

I have a 2D array with 1 and 0 for turning on and off individual NeoPixels on a 30 LED strip. I try to use the 2D-array but it's not working. But if I declare an array like this:

int q[30]={1,1,0,0,1,1,0,0,1,1,1,1,0,0,1,1,0,0,1,1,1,1,0,0,1,1,0,0,1,1};

And the 2D array looks like this:

int LEDOn[][30]=
{{0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0},   
 {0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0},  
 {0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0},  
 {0,0,0,1,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,1,0,0},  
 {0,0,0,1,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0}};

I use this code to send data to the NeoPixel strip:

  for(int ii=0;ii<strip.numPixels();ii++)
    {
    if(q[ii]==1)  //    if(LEDOn[2][ii]==1) Not working
      {
      strip.setPixelColor(ii, LightRoom.Color(0, 100, 0));      
      }
    }
    strip.show();

What's wrong with the 2D array?
I have been searching for answers but failed and I have tried and re write the code in many different ways but I'm out of options. So can someone please help me.

2

What's wrong with the 2D array?

It's wasting precious RAM

3

Thanks for the reply **TolpuddleSartre **

That helped a lot, I change int to byte and now it's working.

Once again thank you so much for your help, I totally missed the "RAM-problem"

4

MicaelKarlsson:
Thanks for the reply **TolpuddleSartre **

That helped a lot, I change int to byte and now it's working.

Once again thank you so much for your help, I totally missed the "RAM-problem"

not enough!

assume that you can make it 1/8 by just using all 8-digits as a single byte and then programmatically parse it during the run time

5

Thanks for the reply Payam_sbr!

I not sure I understand your answer, can you explain a bit more, please.