Subblades control

ProffieOS
1

So I know how to control “subblade” pixels in the strip pixel chain when we choose an array of pixels without “gaps” (say from 1 to 16, then from 17 to 20 etc.). But is it possible to choose specific pixels # for a subblade array? Say I want to control only 1, 3, 5, 7, 9, 11, 13, 15 as 1 array. That would be awesome to use with my currently released NPXL V3 blade connectors that have 16 pixels now all connected in a chain to be able to set different blade styles for inner circle of pixels and outer circle using subblades:

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image828×1330 103 KB

2

You’re in luck, because this is exactly what SubBladeWithStride does:

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3

AWESOME! But it just skips 1 pixel between them right? But is it possible to set any # of pixel for the array? Say 1, 5, 6, 7, 3, 19 ?

1 Like
4

Not currently. The “stride” is a single value for how many to skip. It’s a constant.
Why would you need to do that though? Technically, you could make every pixel it’s own blade. Not realistic in practice, but possible.
SubBlade 1, skip2, 3
SubBlade 5,6,7
SubBlade 19

5

Just for options :slight_smile:

6

Using patterns (like stride) is a lot more efficient than supporting arbitrary sets. I can add arbitrary sets if we really need it I suppose, but I kind of hope that we don’t.

1 Like
7

@profezzorn is it possible to update stride to allow a skip, but then pickup a set of pixels. The pixel set below is an example. Say I want sets like this {1,6, 7, 12}, {3, 4, 9, 10}.
1 2 3
6 5 4
7 8 9
12 11 10

8

Yes, but not without coding.
Basically you would need to make your own subblade variant that takes an array of integers so you can specify exactly which LEDs you want.

9

On the Github feature request I posted I do not see any update if this got included into OS7 alpha/beta. Can you provide an update on status?

I can do testing of the new subbladeZZ if needed as I have the hardware PCB and a test board already setup.

10

There is no update, because I have not worked on implementing this yet.
I’ve been meaning to review the github issues and other todo items, but I haven’t had the time with being on vacation Australia and all. However, I’m back now, so I will see if I can have a go at it.

1 Like
11

Sorry for the thread necromancing (again). But this question is so pertinent to this thread I think it should be included:

I use Shtok’s Illuminated PCBs. And he has two concentric “circles” of leds wired as the first post. So it is a great option for doing SubBladeWithStride so I can handle it as two concentric blades. BUT, I also want to use just one Data line, and thus I would like to use the rest of the Blade as a subblade. You currently can’t mix and match SubBlade and SubBladeWithStride, right?

12

You can totally mix-and-match all the various SubBlade functions.

13

So I could do:

	//Illuminated PCB is 16 pixels in two interleaved circles
	// 22.3k is an 86.5cm 124 pixel WS2812, SMD resistor
	// Total pixels: 140, range 0-139
	{ 22300,
		SubBladeWithStride(0, 15, 2, WS281XBlade<109, bladePin, Color8::GRB>()), , PowerPINS<bladePowerPin2, bladePowerPin3> >()),
		SubBladeWithStride(1, 15, 2, NULL),
		SubBlade(16, 139, NULL),
	},
14

Yes you can.

1 Like