[DSF Extension] Exec On MCode (was: Shutdown SBC)

A Former User

@wilriker Good afternoon, I'm a newbie in the RFF/Duet world and I'm starting to move in all directions but I realize I need more helpt than expected....I want to install this https://forum.duet3d.com/topic/19225/timelapse-video-through-execonmcode?_=1604845400929
on my Rapsby to have the capability to take timelapses of my prints. It is based on execonmcode...

I am not a Raspberry/Linux expert too so I'm in trouble to undesrtand what I have to do...I have read the README.md contained in the latest version of the execonmcode but I don't exactly what to do

this is maybe the most stupid question you have ever heard: execonmcode has to be installed in the Raspy not in the Duet's SD, right?
Have the Raspy being connected via USB to the Duet or is enough that both are connected to the same LAN via WiFi?
To make the script work I have understood I have to make it work as a service and configure it like this:
[Unit]
Description=Duet API listener for Timelapse Video by oozeBot
After=duetcontrolserver.service
Requires=duetcontrolserver.service
[Service]
ExecStart=/usr/local/bin/execonmcode -mCode 5575 -command "./scripts/timelapse.sh %%A %%F"
Restart=always
RestartSec=10
[Install]
WantedBy=multi-user.target

but on github I can't find documentation about services and about where ti write down the previous lines of code I found just in the readme:

Optional: use the shutdownsbc.service systemd unit (included in the repo) to run it at startup and let it shutdown the SBC (customize to your liking)
but here again I haven't understood why now you call it shutdown again...

I now maybe I'm asking too much but could you help me understanding?

Thanks!
Andrea

jay_s_uk

@the_dragonlord This has to be installed on a raspberry pi connected to a duet board through SPI.
Therefore it only supports duet 3's or duet 2 that have been modified to use an SBC connection.
It will not work with a standard duet 2 ethernet or wifi.

A Former User

@jay_s_uk said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

@the_dragonlord This has to be installed on a raspberry pi connected to a duet board through SPI.
Therefore it only supports duet 3's or duet 2 that have been modified to use an SBC connection.
It will not work with a standard duet 2 ethernet or wifi.

uh.....so it's not enough an USB connection between them....ok...

jay_s_uk

it relies on the duet software framework to work.
This would work for what you want https://github.com/DanalEstes/DuetLapse

A Former User

@jay_s_uk said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

it relies on the duet software framework to work.
This would work for what you want https://github.com/DanalEstes/DuetLapse

thanks!

GoremanX

Is this still the easiest way to issue commands on the pi in SBC mode? Or has a native way been implemented in RRF in recent releases? Just wanted to check before investing time and effort in something that's obsolete

GoremanX

Hah! Too late, I'm already neck-deep in implementing it

@wilriker How do I make it execute the command and exit right away and return success without having to wait for the command to complete? I tried sending my command to background with & but that doesn't appear to work. I'm trying to get it to run a process which continues through the duration of the print, but executing the M code just causes it to hang until the process is complete. I thought it would be execAsync, but that gives me an error on the command line saying that's not a supported flag

garethky

I need this in my life! I was going to do something evil with file monitoring but this is much more direct.

I'm planning to use it to run some Python to calculate a bed heightmap to enable probing magnetic beds with irregular optimal probing locations.

GoremanX

@wilriker I don't think -execAsync is implemented in the 5.1 release. I just downloaded the source code for that release and there's no mention of execAsync anywhere. It's only implemented in the current (uncompiled) source code in the repository. Any chance you could push out a more recent release with the current code? It's the last bit I need to get my setup working.

wilriker

Release v.5.1.1

This release introduces three new features:

New parameter -execAsync. This will execute all commands asynchronously returning control immediately back to DCS. This flag is active for all captured M-Codes per execonmcode instance, i.e. if some commands should be performed asynchronously and others synchronously start two execonmcode instances.
New parameters -interceptionMode to select between Pre (default), Post and Exectuted
New parameter -noFlush. This will prevent flushing the code channel prior to executing the attached command. This is useful if the command can be executed once it is read from disk. As with -execAsync this applies to all commands of an instance of execonmcode.

As usual it can be downloaded from GitHub Releases page.

@GoremanX here you go.

GoremanX

@wilriker Thank you!

GoremanX

Works perfect... now I just need to move the camera off-system. Apparently while the Duet is printing (in SBC mode), the SPI bus on the attached pi gets too busy to handle the HQ camera feed and all the captured photos get messed up

Phaedrux

@GoremanX said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

Apparently while the Duet is printing (in SBC mode), the SPI bus on the attached pi gets too busy to handle the HQ camera feed and all the captured photos get messed up

Interesting. Pi cam module?

GoremanX

@Phaedrux said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

Interesting. Pi cam module?

Yeah it's a genuine Raspberry Pi HQ camera. It works fine as long as the Duet isn't printing, but as soon as it starts printing, the photos end up with very random wide magenta bands all the way across and weird lines of noise. At the end of the print everything returns to normal. So I was gonna build a separate camera using the same HQ module and a Pi Zero W

Phaedrux

@GoremanX said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

a separate camera using the same HQ module and a Pi Zero W

I do the same with MotionOS and it works quite well.

Greg_the_maker

Hello,

I'm a complete idiot when it comes to programming and I am finding the instructions a little vague. I feel I need some assistance please

The Installation is as follows.

Download.

Does this mean git clone? That's what I did anyway.

Rename to just execonmcode

Rename what? There are a load of .go files in the directory, do I rename one of those?

chmod etc

The rest of the install I can manage. I think.

Thank you for your time.

PCR

look some pots up. I made a video about this @Greg_the_maker

Greg_the_maker

What is it i need to be looking for?

PCR

@PCR said in [DSF Extension] Exec On MCode (was: Shutdown SBC):

made a little videos how to install it. Mainly for my own reference later

How to install and test

How to make it as a systemservice

Here you go

Greg_the_maker

thank you