LDP Nitehawk Setup

General Discussion
1

Basic Information:

Printer Model: Voron 2.4
MCU / Printerboard: Octopus V1.1
Host / SBC: Mainsail
klippy.log
klippy (1).log (177.5 KB)

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Describe your issue:

…

I went from a wiring harness and cable chains to the LDO Nitehawk board. Got it all wired up and powered on and the lights on the toolhead work as well as the Tap lights work as intended.

I’m having an issue after installing and updating the config file where Mainsail hangs for a bit and then after a minute or so this error pops up:
“mcu ‘nhk’: Unable to connect”

I’ve verified I have the right ID for nhk and even reflashed Klipper to the Nitehawk board and that worked just fine as well.

Last month I had also updated my raspberry pi and klipper and had the printer working great until I had another set of broken wires which led me to move to the Nitehawk.

Any help would be appreciated.

2

Hello @Hopeless !

Something is wrong with your mcu declarations:

[mcu]
serial = /dev/serial/by-id/usb-Klipper_stm32f446xx_2B001A000550314D35323820-if00
restart_method = command

[mcu nhk]
serial = /dev/serial/by-id/usb-Klipper_stm32f446xx_2B001A000550314D35323820-if00
restart_method = command

You have a [mcu] and a [mcu nhk], both with the same serial id.

3

Ahh…

I guess the issue is how to I find the mcu ID for the toolhead board? I followed the directions on the LDO Nitehawk page and entered that ID in the toolhead section of my config file, but apparently that wasn’t the correct one.

4

Ok… I had a burnt chip on the toolhead board…replaced that and now I’m running into an issue with the extruder thermistor and where that information needs to live in order to get past the mcu shutdown “min max temp” error.

Here is my log file…oh my

klippy (3).log (627.4 KB)

5

What chip burnt out? It’s very likely things down stream got destroyed too up to and including an ADC pin on your board. I’ve had that happen more than a few times, most boards don’t have robust protection in place for mcu pins.

6

It was all good after I replaced the nitehawk board. I stumbled a bit with the rest of the config, but everything is working now except for the toolhead neopixels. I can’t for the life of me figure out how to get them to work.

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7

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