Anyone get Pi4 to work via serial to Einsy RAMbo board for Octoprint?
Has anyone successfully used a Pi4 for Octoprint not using the USB, but connected to the Einsy RAMbo board via serial, much like the Pi Zero W?
I can connect my Pi4 no problem via USB, however I want to connect my Raspberry Pi 4 2GB to my Prusa MK3S via the serial port on the GPIO (similar to their Pi Zero W install) and just can't seem to get it to work (won't connect).
I then tried with a Pi3B+ board, starting from scratch doing the exact same thing I did for the Pi4 board and was able to get the Pi3 board to work via serial GPIO to the Einsy board. I moved that SD card over to the pi4 board and still the same issue, pi4 will not connect.
This is the log from the Terminal:
<Serial Port: Auto>
<BaudRate: Auto>
Changing monitoring state from "Offline" to "Detecting serial port"
Serial port list: ['/dev/ttyAMA0', u'/dev/ttyS0']
Trying /dev/ttyAMA0
Could not connect to or enter programming mode on /dev/ttyAMA0, might not be a printer or just not allow programming mode
RE: Anyone get Pi4 to work via serial to Einsy RAMbo board for Octoprint?
Turns out the board was bad. I swapped it out with another rPi4 and it worked.
Feel free to delete the thread.
RE: Anyone get Pi4 to work via serial to Einsy RAMbo board for Octoprint?
@scott_barton
Hey Scott,
Where was the instructions you used? I am getting 8gb pi4 soon, and want to do the same.
Thanks
RE: Anyone get Pi4 to work via serial to Einsy RAMbo board for Octoprint?
@scott_barton
Hey Scott,
Where was the instructions you used? I am getting 8gb pi4 soon, and want to do the same.
Thanks
The RPi 4B 8gb is a 64 bit board and takes a different Octpi image that is currently in testing.
You can follow the status of the image at this link on the Octoprint forum: octoprint-on-a-pi4-8gb
RE: Anyone get Pi4 to work via serial to Einsy RAMbo board for Octoprint?
@email-1
Here are instructions for installing a rPi Zero. Follow the instructions for using OctoPi instead of PrussaPrint.
https://help.prusa3d.com/en/article/octoprint-building-an-image-for-raspberry-pi-zero-w_2182
Here is the modified case and instructions for using a Raspberry Pi3/4 instead of the Zero W.
https://www.prusaprinters.org/prints/9284-prusa-i3-octoprint-raspberry-pi-case
As noted above, the rPi 4 8GB will have issues or be difficult as it is 64bit only and not supported as OctoPi is 32bit.
https://octoprint.org/download/ "Unknown compatibility to Raspberry Pi 4B 8GB. Only 32bit builds available."
I'd recommend returning and getting a rPi4 4GB instead.