Have a question about this project? Reddit, Inc. 2023. ), Please follow the directions at: https://www.klipper3d.org/Contact.html. File "/home/pi/klipper/klippy/serialhdl.py", line 62, in _error Well occasionally send you account related emails. /r/klipper -- a place to discuss all things related to the Klipper 3d Printer Firmware. meht41 changed the title After last update (30.04.2022) i have problem wirth connection "error: mcu 'mcu': Serial connection closed" After last update (30.04.2022) i have problem with connection "error: mcu 'mcu': Serial connection closed" May 2, 2022 By clicking Sign up for GitHub, you agree to our terms of service and File "/home/pi/klipper/klippy/serialhdl.py", line 69, in _get_identify_data Sign in Made new HEX after download was complete and flashed ANET A8 Board. trying to use klipper on my ender 3v2. File "/home/pi/klipper/klippy/serialhdl.py", line 258, in send_with_response Traceback (most recent call last): Many helpful people will not see your message here and you are unlikely to get a useful response. mcu 'mcu': Timeout on connect File "/home/pi/klipper/klippy/serialhdl.py", line 62, in _error Klipper - v0.10.0-391-g722ad4a1 After last update (30.04.2022) i have problem with connection "error: mcu 'mcu': Serial connection closed". privacy statement. We don't use github for requests. This is not an official Klipper support channel and poorly moderated so ymmv. Opening /home/pi/klipper_config/printer.cfg file shows: serial: /dev/serial/by-id/usb-STMicroelectronics_STM32F429VGT6_CDC_in_FS_Mode_2056325F4730-if00. cmd_queue) StartingKlippyArgs:['/home/pi/klipper/klippy/klippy.py','/home/pi/klipper_config/printer.cfg','-I','/tmp/printer','-l','/home/pi/klipper_logs/klippy.log','-a','/tmp/klippy_uds']Gitversion:'v0.10.0-172-g051133f8', =====Configfile=====[mcu]serial=/dev/serial/by-id/. return src.get_response([cmd], self.default_cmd_queue) but now my Mainsail wont connect to the printer anymore Could it be that printer.cfg is somehow broken now ? Heres some lines from Klipper.log: mcu 'mcu': Starting serial connect mcu 'mcu': Timeout on connect mcu 'mcu': Wait for identify_response . Sign up for a free GitHub account to open an issue and contact its maintainers and the community. It can't open the printer.cfg, either because it doesn't exist or it doesn't have permission to access the necessary folder. Error: Serial connection closed General Discussion Snightlo May 24, 2021, 3:39pm #1 Hallo, I am just another 3D Printer who wants to use Klipper, but has very little clues about all the coding stuff. We don't use github for requests. Instead, see the contact directions at: https://www.klipper3d.org/Contact.html, We use github to share the results of work done to improve Klipper. You signed in with another tab or window. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. File "/home/pi/klipper/klippy/serialhdl.py", line 258, in send_with_response params = self.send_with_response(msg, 'identify_response') return src.get_response([cmd], self.default_cmd_queue) I tested to working wires (checked out fine) then I cut off the headers and replaced heads and retested (Checked out fine). hardknox_ 2 yr. ago If you ssh into your pi and do ls /dev/serial/by-id/ what do you get? Unable to open config file /home/pi/klipper_config/printer.cfg, File "/home/pi/klipper/klippy/configfile.py", line 154, in _read_config_file, IOError: [Errno 2] No such file or directory: '/home/pi/klipper_config/printer.cfg', File "/home/pi/klipper/klippy/klippy.py", line 175, in _connect, File "/home/pi/klipper/klippy/klippy.py", line 134, in _read_config, File "/home/pi/klipper/klippy/configfile.py", line 275, in read_main_config, File "/home/pi/klipper/klippy/configfile.py", line 160, in _read_config_file, Error: Unable to open config file /home/pi/klipper_config/printer.cfg, webhooks client 1970948416: New connection, webhooks client 1970948416: Client info {'program': 'Moonraker', 'version': 'v0.7.1-597-gd37f91c'}, Scan this QR code to download the app now. File "/home/pi/klipper/klippy/serialhdl.py", line 258, in send_with_response Debian PC connected to MKS Robin Nano 1.2 via USB (serial: /dev/serial/by-id/usb-1a86_USB_Serial-if00-port0) baud: 250000 mcu 'mcu': Unable to connect error when starting klipper (No effect) 1 naught-me 1 yr. ago Thanks! raise error(self.warn_prefix + (msg % params)) Please be so kind to place your support / feature request on: Klipper Discourse ago You have everything you need in the log. Your device id seems strange to me. webhooks client 3042385672: New connection All rights reserved. and our Restarting printer. params = self.send_with_response(msg, 'identify_response') cmd_queue) raise error(self.warn_prefix + (msg % params)) File "/home/pi/klipper/klippy/serialhdl.py", line 62, in _error Already on GitHub? Mainsail or fluidd i always get the same error: mcu 'mcu': Unable to connect . self._error("Serial connection closed") webhooks client 3042385672: Client info {'program': 'Moonraker', 'version': 'v0.6.0-179-gc6fee3c'} koekie1974 4 mo. The text was updated successfully, but these errors were encountered: It looks like this ticket is a request for help (or similar). error: mcu 'mcu': Serial connection closed Well occasionally send you account related emails. File "/home/pi/klipper/klippy/serialhdl.py", line 250, in raw_send_wait_ack PS: I'm just an automated script, not a human being. mcu 'mcu': Timeout on connect error: mcu 'mcu': Serial connection closed ), Please follow the directions at: https://www.klipper3d.org/Contact.html. params = self.send_with_response(msg, 'identify_response') can anyone help, i'm new to rpi, so . thx alot, really. Already on GitHub? Great Prints? if you need some log info, let me know. This ticket will be automatically closed. mcu 'mcu': Starting serial connect For more information, please see our You signed in with another tab or window. Old Printer? self._error("Serial connection closed") Saya Edited because the second command didn't make it into the post. New Printer? This all was working. This is not an official Klipper support channel and poorly moderated so ymmv. (In particular, we don't use github for feature requests, to answer questions, nor to help diagnose problems with a printer. error: mcu 'mcu': Serial connection closed webhooks client 3042385672: Disconnected Restarting printer. The text was updated successfully, but these errors were encountered: It looks like this ticket is a request for help (or similar). After last update (30.04.2022) i have problem with connection "error Bad Prints? (No effect). Old Printer? to your account. mcu 'mcu': Wait for identify_response Instead, see the contact directions at: https://www.klipper3d.org/Contact.html, We use github to share the results of work done to improve Klipper. Also attach your klippy.log there. Cookie Notice 18 comments Add a Comment polaarbear 4 mo. Octopus Pro mcu 'mcu': Unable to connect - Klipper /r/klipper -- a place to discuss all things related to the Klipper 3d Printer Firmware. Error: Serial connection closed - General Discussion - Klipper Cheap Printer? Sorry! Sign up for a free GitHub account to open an issue and contact its maintainers and the community. File "/home/pi/klipper/klippy/serialhdl.py", line 316, in get_response Reddit and its partners use cookies and similar technologies to provide you with a better experience. Cheap Printer? mcu 'mcu': Unable to connect please help : r/klippers - Reddit error: mcu 'mcu': Serial connection closed All rights reserved. Reddit, Inc. 2023. I am trying to set up a SKR2 and Ender3 Pro and am getting the dreaded mcu 'mcu': Unable to connect error. Klipper can help you and your machine produce beautiful prints at a fraction of the time. New Printer? Privacy Policy. ago this was in the beginning of the log. I've done a search for every printer.cfg and changed them all to the correct setting. self._error("Serial connection closed") webhooks client 3042385672: Disconnected Hi there, i updated today to the most recent version of Klipper Moonraker Mainsail and System OS. Best regards, PS: I'm just an automated script, not a human being. Check Klipper out on discord, discourse, or Klipper3d.org. The text was updated successfully, but these errors were encountered: . Best regards, return src.get_response([cmd], self.default_cmd_queue) Board. By clicking Sign up for GitHub, you agree to our terms of service and mcu 'mcu': Unable to connect error when starting klipper, Scan this QR code to download the app now. Sign in -Reinstall Klipper, Moonraker, Fluid. File "/home/pi/klipper/klippy/serialhdl.py", line 250, in raw_send_wait_ack serialhdl.error: mcu 'mcu': Serial connection closed The USB C connection stopped working on the Octopus pro so I started using UART2 pins. (In particular, we don't use github for feature requests, to answer questions, nor to help diagnose problems with a printer. File "/home/pi/klipper/klippy/serialhdl.py", line 316, in get_response -Rebuild and Reflash MCU with new Klipper firmware. Have a question about this project? ~ Your friendly GitIssueBot. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. File "/home/pi/klipper/klippy/serialhdl.py", line 69, in _get_identify_data I've checked the file using klipper editor and WinSCP to check every file. Klipper can help you and your machine produce beautiful prints at a fraction of the time. Bad Prints? File "/home/pi/klipper/klippy/serialhdl.py", line 250, in raw_send_wait_ack Traceback (most recent call last): Many helpful people will not see your message here and you are unlikely to get a useful response. File "/home/pi/klipper/klippy/serialhdl.py", line 69, in _get_identify_data mcu 'mcu': Wait for identify_response This ticket will be automatically closed. As already stated when you opened the ticket: Issues here are for development only. Now I am afraid the Pins have stopped working. moonraker - v0.7.1-562-gcd520ba, Kiauh is detecting my MCU via USB. cmd_queue) Traceback (most recent call last): mcu 'mcu': Wait for identify_response Check Klipper out on discord, discourse, or Klipper3d.org. So when just following the Instructions keeps producing this error I can't help myself. No connection to MCU after recent Update #4465 - GitHub Great Prints? ~ Your friendly GitIssueBot. I do have an Ender 3 V2 with the 4.2.2. raise error(self.warn_prefix + (msg % params)) to your account, Recently updated my Klipper via Fluidd to the Actual Version v0.10.0-391-g722ad4a1 and after restart i have this error log :(, Using: mcu 'mcu': Timeout on connect (/dev/serial/by-id/usb-1a86_USB_Serial-if00-port0), Done: privacy statement. File "/home/pi/klipper/klippy/serialhdl.py", line 316, in get_response