Info - Configuring Voron toolhead lights

SpeedyDad

This thread is to help others that want to do the same thing I did.

All my machines have been run by Duet mainboards so I figured my Vorons should be too. Yes, I could get Klipper working on them but I am already familiar with Reprap. I wanted the three LEDs in the toolhead to work as follows. Upper LED will be print status light and the two lower ones would be on white for part light. Doing this through M150 is tricky because of the way M150 works. After many hours of fiddling, I finally have it working.

I added the following to the end of my Start G-Code:
M150 R255 U255 B255 S20
M150 S2
M150 U255 P255 S1 F0

This turns on all the lights white. It then turns off the first two LEDs in the chain and then turns them back on as green. For some reason, yes, you have to turn off two LEDs, but then only need to turn on one LED. It took me a while to come to this realization. I tried just turning off just one but it always left one white LED on, washing out the main status color. It didn't seem to care if I used S1 or S2 when turning the green LED on. BTW Reprap doesn't support the Wxxx option for white. You have to mix.

My pause.g starts with:
M150 S20
M150 R255 U255 P255 S1 F0

The M150 S20 (can be a smaller number but I just left that in there from the example) turns off all the lights. Yes, you have to include the S20. Just sending M150 alone doesn't really work. Then it turns on yellow.

My resume.g simply ends with the same thing that is in the Start G-Code:
M150 R255 U255 B255 S20
M150 S2
M150 U255 P255 S1 F0

That turns the white part lights back on and the green status LED.

My stop.g ends with M150 S20. Turns off all lights.

This all may seem like an odd way to do all this but it was the only way I could get this all to work. I've looked at many examples of other people's options but none ever seemed to work with the three Voron lights.

Hope this helps someone.

droftarts

@SpeedyDad can you post what hardware you’re using, firmware version, and the LED M950 command from config.g?

RRF supports RGB and RGBW Neopixel LEDs, but you need to set the M950 T parameter. The default is RGB, and I suspect you have RGBW LEDs, and M150 W is supported from RRF 3.3 and later. This may explain why you have to send an odd M150 commands.
Also see https://docs.duet3d.com/en/User_manual/Connecting_hardware/IO_Neopixel_DotStar

Ian

SpeedyDad

@droftarts Thans. I'll have a look.