Cat6 is wired opposite? OctoWs2811 wiring

[Flinch]

Heya...

First of all, many many many thanks to Paul and all contributors, making this so accessible, both in required skills and cost, much kudos =)

Interesting, I found my lights not working at all, after shortening the cable and having it work without the 74HCT245 shield, I checked my cat6 wiring and found all the full coloured wires were joined to ground, when the pictures and documentation say the opposite. Im in Australia but I assumed they were standard?

Also, Im planning an installation which using an abstract arrangment of the strips, probably 2,000 - 3,000, but I still want even fades accross it ect.... From the basics I know, it'd be assigning each pixel an x,y co-ord in a lookup table... but I'll make a new post if once I find out/figure out/run out of hair to pull out.

 

[PaulStoffregen]

I checked my cat6 wiring and found all the full coloured wires were joined to ground, when the pictures and documentation say the opposite. Im in Australia but I assumed they were standard?

I thought they were standard too. Maybe not? Or maybe that's just a cable not following the standard?

Also, Im planning an installation which using an abstract arrangment of the strips, probably 2,000 - 3,000, but I still want even fades accross it ect.... From the basics I know, it'd be assigning each pixel an x,y co-ord in a lookup table... but I'll make a new post if once I find out/figure out/run out of hair to pull out.

Here's some code I recently wrote to compute the index based on x & y coordinates.

I'm considering added a setPixel() function in version 1.2 that allows x & y instead of merely index, probably using this code internally.

uint32_t matrix_width = 60;
uint32_t matrix_height = 32;
uint32_t matrix_layout = 1;

uint32_t xy(uint32_t x, uint32_t y)
{
  int index;
  
  index = y * matrix_width;

    // rows left to right, then right to left
    uint32_t offset = y % (matrix_height / 8);
    if (!(offset & 1)) {
      // left to right row
      index += x;
    } else {
      // right to left row 
      index += matrix_width - 1 - x;
    }
  return index;
  
  
}

 

[Flinch]

I'll let you know if the new cables I get are the same.

Looking forward to testing out the new code, I'll make a project report once I get some headway =)

Cheers