I’ve got some problem with my ender 3 pro to be detected by a raspberry sometimes
Ender 3 pro
Plugged via usb to a raspberry with octopi.
Both raspberry and ender 3 pro plugged to a power strip that is plugged to the wall to a smart socket.
Ender 3 and raspberry are always on, I just switch off the smart socket.
Now my problem:
Every time I reboot or power off the raspberry and/or the ender 3,
the raspberry don’t see anything plug to its USB port. ( I checked via putty lsusb command don't have the printer)
If I unplug everything for one hour (power cord remove from both) Still nothing.
If I let it unplug overnight, in the morning everything runs fine, the printer is detected and i can print for several days without problems
if i plug the printer on windows 10 i get an error with : unknown usb device : device descriptor request failed (I install octoprint on my windows and i've got the same problem)
I noticed that if I switch off the ender 3 with the raspberry plug in usb, the ender 3 is powered enough for the LCD. same via pc
What I tried:
Change the raspberry power supply
Change the usb cable
Change the raspberry
Change the raspberry sdcard with clean version of octopi.
Octoprint on windows
octoprint in safe mode
Tape on 5v usb plug to prevent the raspberry to power the ender 3.
I wanted to upgrade the firmware but with those usb issues , I’m a little worried to brick it.
When the usb is detected , I run 15Hours print without any issue via octoprint
I suspect an electronic issue (power leak ?) in my motherboard, but i'm not sure how to detect it or to fix it.
any help would be much appreciated.