Neopixel problems

General Discussion
1

Basic Information:

Printer Model: Voron 2.4r2
MCU / Printerboard:Octopus v1.1
Host / SBC rpi 4b
klippy.log
klippy.log (6.6 MB)

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
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Describe your issue:

…I’ve had trouble with my previous install of BTT Neopixels so purchased a set of Mellow ones. But they don’t seem to light correctly, don’t know if it’s something to do with the config. I’m using the config from the BTT Neopixels so don’t know if this is the problem?
stealthburner_leds.cfg (10.0 KB)
The old Neopixel where these ones:-

IMG_0117
IMG_01171320×2868 429 KB

And the replacement are these:-
IMG_0116
IMG_01161320×2868 389 KB

2

Could you be more specific in explaining what you mean by “don’t seem to light correctly”?

Now, from your klippy.log, it looks like you are have a CAN bus toolhead controller - shouldn’t your NeoPixels be connected to this? And, if they are, shouldn’t you be specifying that in your [neopixel statement?

3

The ebb2209 which I’m using isn’t working has no output so I’ve had to run a wire from the Toolhead to the mainboard.
To your first question, the logo seems to only light the two lights at the hot end don’t illuminate!

4

So what I would recommend doing is:

  1. Commenting out the [include stealthburner_leds] statement in your printer.cfg.
  2. In your printer.cfg adding the statement:
[neopixel sb_leds]
pin = PB6
chain_count = 3
color_order = GRBW
initial_red = 1.0
initial_green = 0.6
initial_blue = 1.0
initial_white = 0.6

Let’s see if all three LEDs come up and if you can change all their colours and brightness (using the sliders in the Mainsail interface).

If they all light up and can be controlled, then the problem is with your stealthburner_leds.cfg macros if one doesn’t light, then you have a wiring problem.

5

Thank you for your suggestion, unfortunately it still didn’t work.
I tried changing the number of leds from 3 to 10 which has seemed to have solved the issue

6

??? Did you change the LEDs?

The information that you provided above has a string of three.

image
image230×500 41.5 KB

Is this not what you’re using?

7

The replacement are the last picture posted
The BigTreeTech are the old ones and the Mellow are the replacements

8

Sorry, it wasn’t clear.

Yes, if you’re using the second one, then you need to have a string of 10 (eight for the hexagonal piece, one more for each of the two others).

Aren’t the last two meant to be individually controlled (ie aren’t they for lighting what’s beneath the nozzle)?

9

I’ve got 1-8 for the logo and 9 + 10 for the nozzle lights
stealthburner_leds.cfg (10.0 KB)

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10

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