Trying to Get Online via a Controller and Not being able to run bCNC on the embedded device

[silver2row]

Hello,

Is there a way...

1. to communicate to a Linux embedded device but to then start bcnc from debian/embedded Linux machine with it showing up in a server?
2. to use the embedded device controlling the machine online via server?

I know 1. and 2. are similar questions, i.e. for good reason. I am trying to understand how to port this bcnc from Debian installs to an armhf machine with a PRU on it. The PRU is a TI.com chip coprocessor on the am335x. Beagleboard.org has built a machine for running armhf dependencies and programs.

It is an older board that still works and I wanted to try to port this software to the board.

Seth

[silver2row]

Or...would a Display be needed instead? I am trying to play catch up and track down exactly how to research what is needed to supply the armhf machine with the correct source to put a working server on web locally via Debian.

[Harvie]

I know 1. and 2. are similar questions, i.e. for good reason. I am trying to understand how to port this bcnc from Debian installs to an armhf machine with a PRU on it. The PRU is a TI.com chip coprocessor on the am335x. Beagleboard.org has built a machine for running armhf dependencies and programs.

I don't know what is PRU. But bCNC is written in Python, so it works on ARM without any need for porting.

[silver2row]

Okay...

But...I have no LCD. I am trying to port the server I guess to the board for accepting the armhf machine in the gui.

I tried address:port and it does not work or connect.

[Harvie]

How do you want to control bCNC without screen?

[silver2row]

.service file pointing to an online server. The server is on the screen.

[silver2row]

I have bCNC installed on both. One works but it is controlled via PC, i.e. not my end game here. The embedded computer (armhf) is the end game for me. I am trying to get it to understand how to accept the GUI of bCNC and all that is offered from it but I am connected via ssh or sftp only. I have not been able to connect the armhf machine to the GUI from the other PC.

[Harvie]

I don't get the point. How is headless arm the endgame, when you need other pc with screen anyway?

But. I see 3 possible solutions:

• SSH X11 Forwarding, i think that's what you are looking for, but i think what you are trying to achieve is not optimal.
• Serial over IP (make the headless ARM act as console server exposing the serial port over TCP, so you can run bCNC on other PC and connect to it, i think this is the best option, bCNC already support TCP client mode, you just need some TCP serial server, there are such packages in Debian)
• Serial over bluetooth (you can buy cheap bt serial module and connect the PC to it)

[Harvie]

https://github.com/vlachoudis/bCNC/wiki/Connecting#remote-machine-over-lan--ip

[Harvie]

https://packages.debian.org/search?keywords=ser2net

[silver2row]

I am just saying...I could do it with a more powerful machine but...

1. I may get a LCD one day
2. I wanted to configure things first
3. I also wanted to test since I have always known about bCNC (for years and years)

[silver2row]

new-config Utils <configparser.ConfigParser object at 0xb65be1b0>
================================================================================
WARNING: bCNC has been recently ported to support both python v2.x and v3.x
Most things seem to work reasonably well in both python versions.
Please report any issues to: https://github.com/vlachoudis/bCNC/issues
================================================================================
Traceback (most recent call last):
  File "/usr/share/bcnc/bCNC/__main__.py", line 2729, in <module>
    main()
  File "/usr/share/bcnc/bCNC/__main__.py", line 2571, in main
    tk = Tk()
         ^^^^
  File "/usr/lib/python3.11/tkinter/__init__.py", line 2326, in __init__
    self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_tkinter.TclError: no display name and no $DISPLAY environment variable

This seems to be my error so far with building...

the main.py file from bCNC and the init.py file from tkinter are giving me trouble so far.

[Harvie]

if your ssh client is on linux, just put -X parameter to ssh command.

[silver2row]

Aw. Thank you. I figured out another way. Thank you.

[silver2row]

It works!

[silver2row]

Okay. I will stop for now. I think I have tried my senses out for now. Thank you...