Lost communication with MCU 'btt_lis2dw

General Discussion
1

Basic Information:

Printer Model: Custom Build
MCU / Printerboard: BTT Manta e3ez
Host / SBC BTT CB2
klippy.log

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
Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there

Describe your issue:Hello,

Has anyone experienced this error? “Lost communication with MCU 'btt_lis2dw”. I installed the accelerometer a few months ago and it’s been functioning fine. Now I can’t get through homing without the Klipper crashing and getting this message. I’ve tried to comment it out in printer.cfg but it still fails. If no one has a solution for this then I am fine with removing it from the system, but I have no idea how to do that. Any kind of help would be greatly appreciated. Attached is my Klippy.log. It looks like the error occurs the first time today on line-4055.
klippy.log (1.3 MB)

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2

This is often indicative to wiring issues or other hardware defects. For a general explanation see Timeout with MCU / Lost communication with MCU

1 Like
3

Thank you for the response. I just added some leds to the system. Maybe by adding them I maxed out my power supply. I will run through the options in the link you included.

Is there a way to disable the accelerometer in the meantime so I can use the printer without it shutting down?

Thank you