I have a new printer Voron 2.4 300 I’m trying to get running. I’m using Octoprint on a new RPi 4 and a BTT Octopus control board. I’m getting “mcu ‘mcu’: Unable to connect” when I try to connect. This is the serial log. It looks like it’s getting to the Octopus control board but I must still have something messed up. Sorry, I’m not great with Linux so speak slowly with any answers. Thanks for the help.
2021-12-24 00:11:43,185 - Trying port /tmp/printer, baudrate 115200
2021-12-24 00:11:43,187 - Connecting to port /tmp/printer, baudrate 115200
2021-12-24 00:11:43,198 - Handshake attempt #1 with timeout 2.0s
2021-12-24 00:11:43,202 - Connected to: Serial<id=0xa9a86090, open=True>(port=’/tmp/printer’, baudrate=115200, bytesize=8, parity=‘N’, stopbits=1, timeout=2.0, xonxoff=False, rtscts=False, dsrdtr=False), starting monitor
2021-12-24 00:11:43,204 - Recv: // Printer is not ready
2021-12-24 00:11:43,207 - Send: N0 M110 N0125
2021-12-24 00:11:43,214 - Recv: // The klippy host software is attempting to connect. Please
2021-12-24 00:11:43,218 - Recv: // retry in a few moments.
2021-12-24 00:11:43,222 - Recv: !! Printer is not ready
2021-12-24 00:11:43,233 - Recv: ok
2021-12-24 00:11:43,247 - Changing monitoring state from “Detecting serial connection” to “Operational”
2021-12-24 00:11:43,283 - Send: N0 M110 N0125
2021-12-24 00:11:43,320 - Recv: ok
2021-12-24 00:11:43,321 - Recv: ok
2021-12-24 00:11:43,323 - Send: N1 M115*39
2021-12-24 00:11:43,323 - Recv: ok FIRMWARE_VERSION:v0.10.0-106-gffeafb69 FIRMWARE_NAME:Klipper
2021-12-24 00:11:43,338 - Send: M21
2021-12-24 00:11:43,342 - Recv: ok
…
2021-12-24 00:12:23,244 - Send: M105
2021-12-24 00:12:23,249 - Recv: ok T:0
2021-12-24 00:12:26,341 - Send: M140 S100
2021-12-24 00:12:26,353 - Recv: // mcu ‘mcu’: Unable to connect
2021-12-24 00:12:26,356 - Recv: // Once the underlying issue is corrected, use the
2021-12-24 00:12:26,356 - Recv: // “FIRMWARE_RESTART” command to reset the firmware, reload the
2021-12-24 00:12:26,357 - Recv: // config, and restart the host software.
2021-12-24 00:12:26,357 - Recv: // Error configuring printer