What is the problem?
Unable to connect to Ender 5 printer using Raspberry Pi 4B. Using AUTO/AUTO it hangs on "Detecting Baudrate" and if I manually set 115200 it hangs on connecting.
What did you already try to solve it?
I checked the serial connection on the pi was the correct one and that the baud rate was configured correctly on the;
stty -F /dev/ttyACM0
Logs (octoprint.log, serial.log or output on terminal tab at a minimum, browser error console if UI issue ... no logs, no support!)
pi@octopi:~/.octoprint/logs $ tail -10 octoprint.log
2020-05-05 11:59:39,985 - octoprint.util.comm - INFO - Changing monitoring state from "Opening serial port" to "Connecting"
2020-05-05 11:59:39,994 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-05-05 11:59:39,995 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-05-05 12:01:10,560 - octoprint.util.comm - INFO - Changing monitoring state from "Connecting" to "Offline"
2020-05-05 12:01:35,646 - octoprint.util.comm - INFO - Changing monitoring state from "Offline" to "Opening serial port"
2020-05-05 12:01:35,655 - octoprint.util.comm - INFO - Changing monitoring state from "Opening serial port" to "Connecting"
2020-05-05 12:01:35,659 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-05-05 12:01:35,661 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2020-05-05 12:02:49,694 - octoprint.server.heartbeat - INFO - Server heartbeat <3
2020-05-05 12:04:37,521 - octoprint.plugins.tracking - INFO - Sent tracking event ping, payload: {'octoprint_uptime': 8208}
pi@octopi:~/.octoprint/logs $ tail -10 serial.log
2020-05-05 12:08:02,863 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:04,863 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:06,863 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:08,878 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:10,877 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:12,877 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:14,877 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:16,877 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:18,877 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
2020-05-05 12:08:20,880 - Recv: T:20.62 /0.00 B:20.62 /0.00 @:0 B@:0
Additional information about your setup (OctoPrint version, OctoPi version, printer, firmware, browser, operating system, ... as much data as possible)
OctoPrint 1.3.12 running on OctoPi 0.17.0