chriesibaum wiki - User contributions [en]

Engauge-digitizer

2025-12-19T10:57:37Z

PTH: Created page with " https://akhuettel.github.io/engauge-digitizer/ https://github.com/akhuettel/engauge-digitizer"

https://akhuettel.github.io/engauge-digitizer/

https://github.com/akhuettel/engauge-digitizer

Main Page

2025-12-19T10:55:35Z

PTH: /* A few things to make life easier */

{{DISPLAYTITLE:<span style="position: absolute; clip: rect(1px 1px 1px 1px); clip: rect(1px, 1px, 1px, 1px);">{{FULLPAGENAME}}</span>}}

<p style="font-size:32px"><strong>Welcome to Chriesibaum Wiki</strong></p>

This wiki is a free collection without any claim to completeness. You will find code snippets, config hints or simply instructions on tools, services, development environments and operating systems. So you can find bits and pieces on [https://ubuntu.com/ Ubuntu], [https://www.zephyrproject.org/ Zephyr RTOS], [https://www.raspberrypi.com/ Raspberry Pi], [https://www.yoctoproject.org/ yocto] or Embedded Linux. I am happy about additions as well corrections, have fun!

= [https://zephyrproject.org/ Zephyr] RTOS bits and bytes =
* [[Zephyr and the Memory Footprint]]
* [[Zephyr and Debugging]]
* [https://github.com/embeddedSystemsWorld/crispyZephyrSamples My Selection of crispy and crunchy Zephyr RTOS Samples]
* [[Get a specific Zephyr source code]]
* [[HOW-TO debug Faulting Instruction Addresses]]

= [[Programming Tools]]=
* [[vscode]]

= The Himbeeri =
* [[PTH's basic Raspberrypi installation]]
* [[PTH's embedded Raspberrypi tools and tweaks]]
* [[USB over ENET]]
* [[Remote Desktop]]

= Embedded Tools =
* [[pyOCD]] - for programming and debugging Arm Cortex-M microcontrollers
* SEGGER OZone - [[Zephyr and Debugging]]

= Linux System Monitoring =
* [https://ubuntu.com/server/docs/logging-monitoring-alerting Logging, Monitoring, and Alerting - Introduction]
* [[telegraf]]
* [[Prometheus]]
* [[grafana]]

= Graphic Tools =
* [[Inkscape]]

= A few things to make life easier =

* [[Linux and Windows Remote Desktop]]
* [[udev rules for serial devices to make names fixed]]
* [[The famous selection of Linux bash commands]]
* [[My Ubuntu tweaks]]
* [[Git Cheat Sheet]]
* [[Ubuntu and name resolving]]
* [[vnc]]
* [[Altium Designer]]
* [[Virtualbox Autostart a VM]]
* [[make hints]]
* [[PC Hardware Tuning & Thinkering]]
* [[engauge-digitizer]]

= Interfaces =
*[[RS485]]

=Haus und Hof=
* [[Heeting System]]

<div style='text-align: center;'>
What the heck is '''Chriesibaum'''? Quite simple: Chriesibaum is the swiss german word for cherry tree ;-)
</div>

My Ubuntu tweaks

2025-11-30T11:40:43Z

PTH: /* Packages for all boxes */

=Packages for all boxes=

<syntaxhighlight lang="bash">
sudo apt install aptitude
</syntaxhighlight>

<syntaxhighlight lang="bash">
sudo aptitude install net-tools avahi-daemon avahi-autoipd inetutils-traceroute
</syntaxhighlight>

=Packages for dev boxes=
== must haves==
<syntaxhighlight lang="bash">
sudo aptitude install openssh-server konsole yakuake htop python-is-python3
</syntaxhighlight>

* Add yakuake to "startup applications" - [https://linuxconfig.org/how-to-autostart-applications-on-ubuntu-20-04-focal-fossa-linux guckst Du]

==bits and pieces ==
<syntaxhighlight lang="bash">
sudo aptitude install kate gedit konqueror
</syntaxhighlight>

==Various dev Tools==
<syntaxhighlight lang="bash">
sudo aptitude install git subversion build-essential make minicom meld
</syntaxhighlight>

<syntaxhighlight lang="bash">
sudo snap install gitkraken --classic
</syntaxhighlight>

* to be able to use minicom and serial ports, add your username to the dailout group:
<syntaxhighlight lang="bash">
sudo adduser <the dev user> dialout
</syntaxhighlight>

Install the chrome-gnome-shell package:
<syntaxhighlight lang="bash">
sudo aptitude install chrome-gnome-shell
</syntaxhighlight>

Remove brltty as this package can interfere with some UART devices.
<syntaxhighlight lang="bash">
sudo aptitude purge brltty
</syntaxhighlight>

== Arrange workspaces in a two dimensional grid with workspace thumbnails. ==

This setting now made it into the "Settings" tool on the "Multitasking" tab:
* https://askubuntu.com/questions/1403554/switch-workspace-on-dual-monitor-22-04

old:

* https://askubuntu.com/questions/1232919/how-do-i-get-grid-workspaces-in-ubuntu-20-04
* https://extensions.gnome.org/extension/1485/workspace-matrix/

Enable workspaces on all monitors:
<syntaxhighlight lang="bash">
gsettings set org.gnome.mutter workspaces-only-on-primary false
</syntaxhighlight>

== Open a new instance of an applicaiton ==

1. Install from App Center: Extension Manager - A native tool for browsing, installing, and managing GNOME Shell Extensions
2. Install from Extension Manager: Launch new instance
3. Enable the option

Old variant (does not really work anymore):
https://askubuntu.com/questions/125243/how-do-i-open-a-new-instance-of-an-application-by-default-in-gnome
https://extensions.gnome.org/extension/600/launch-new-instance/#

=Packages for server boxes=
<syntaxhighlight lang="bash">
tbd
</syntaxhighlight>

=General tweaks=
==Shell/Bash==
Add the following mappings to <syntaxhighlight lang="bash" inline>/etc/inputrc</syntaxhighlight> for a very convinient history search:
<syntaxhighlight lang="bash">
# mappings for "page up" and "page down" to search the history
"\e[5~": history-search-backward
"\e[6~": history-search-forward
</syntaxhighlight>

=Öpfelbuech / mac book tweaks=
==Enable direct Function Key F1..F12==
<syntaxhighlight lang="bash">
sudo bash -c "echo 2 > /sys/module/hid_apple/parameters/fnmode"
</syntaxhighlight>

or add the following line to /etc/modprobe.d/hid_apple.conf

<syntaxhighlight lang="bash">
options hid_apple fnmode=2
</syntaxhighlight>

and run:
<syntaxhighlight lang="bash">
sudo update-initramfs -u
</syntaxhighlight>

reboot your system - be happy! ;-)

==WLAN==
Download <syntaxhighlight lang="bash" inline>bcmwl-kernel-source</syntaxhighlight> package from https://packages.ubuntu.com/groovy/amd64/bcmwl-kernel-source/download and (re)-install it ([https://forum.ubuntuusers.de/topic/wifi-funktioniert-nicht-nach-neuinstallation/2/ info source]):

<syntaxhighlight lang="bash">
sudo apt remove --purge bcmwl-kernel-source

wget http://de.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb

sudo dpkg -i bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb
</syntaxhighlight>

=have fun with Tex/Latex=
A few nice latex packages (tbd.):
<syntaxhighlight lang="bash">
sudo aptitude install texlive-base texlive-bibtex-extra texlive-binaries texlive-fonts-extra texlive-fonts-extra-links texlive-fonts-recommended texlive-lang-german texlive-lang-greek texlive-latex-base texlive-latex-extra texlive-latex-recommended texlive-pictures texlive-plain-generic texlive-science
</syntaxhighlight>

My Ubuntu tweaks

2025-08-08T11:26:25Z

PTH: /* must haves */

=Packages for all boxes=

<syntaxhighlight lang="bash">
sudo apt install aptitude
</syntaxhighlight>

<syntaxhighlight lang="bash">
sudo aptitude install net-tools avahi-daemon avahi-autoipd
</syntaxhighlight>

=Packages for dev boxes=
== must haves==
<syntaxhighlight lang="bash">
sudo aptitude install openssh-server konsole yakuake htop python-is-python3
</syntaxhighlight>

* Add yakuake to "startup applications" - [https://linuxconfig.org/how-to-autostart-applications-on-ubuntu-20-04-focal-fossa-linux guckst Du]

==bits and pieces ==
<syntaxhighlight lang="bash">
sudo aptitude install kate gedit konqueror
</syntaxhighlight>

==Various dev Tools==
<syntaxhighlight lang="bash">
sudo aptitude install git subversion build-essential make minicom meld
</syntaxhighlight>

<syntaxhighlight lang="bash">
sudo snap install gitkraken --classic
</syntaxhighlight>

* to be able to use minicom and serial ports, add your username to the dailout group:
<syntaxhighlight lang="bash">
sudo adduser <the dev user> dialout
</syntaxhighlight>

Install the chrome-gnome-shell package:
<syntaxhighlight lang="bash">
sudo aptitude install chrome-gnome-shell
</syntaxhighlight>

Remove brltty as this package can interfere with some UART devices.
<syntaxhighlight lang="bash">
sudo aptitude purge brltty
</syntaxhighlight>

== Arrange workspaces in a two dimensional grid with workspace thumbnails. ==

This setting now made it into the "Settings" tool on the "Multitasking" tab:
* https://askubuntu.com/questions/1403554/switch-workspace-on-dual-monitor-22-04

old:

* https://askubuntu.com/questions/1232919/how-do-i-get-grid-workspaces-in-ubuntu-20-04
* https://extensions.gnome.org/extension/1485/workspace-matrix/

Enable workspaces on all monitors:
<syntaxhighlight lang="bash">
gsettings set org.gnome.mutter workspaces-only-on-primary false
</syntaxhighlight>

== Open a new instance of an applicaiton ==

1. Install from App Center: Extension Manager - A native tool for browsing, installing, and managing GNOME Shell Extensions
2. Install from Extension Manager: Launch new instance
3. Enable the option

Old variant (does not really work anymore):
https://askubuntu.com/questions/125243/how-do-i-open-a-new-instance-of-an-application-by-default-in-gnome
https://extensions.gnome.org/extension/600/launch-new-instance/#

=Packages for server boxes=
<syntaxhighlight lang="bash">
tbd
</syntaxhighlight>

=General tweaks=
==Shell/Bash==
Add the following mappings to <syntaxhighlight lang="bash" inline>/etc/inputrc</syntaxhighlight> for a very convinient history search:
<syntaxhighlight lang="bash">
# mappings for "page up" and "page down" to search the history
"\e[5~": history-search-backward
"\e[6~": history-search-forward
</syntaxhighlight>

=Öpfelbuech / mac book tweaks=
==Enable direct Function Key F1..F12==
<syntaxhighlight lang="bash">
sudo bash -c "echo 2 > /sys/module/hid_apple/parameters/fnmode"
</syntaxhighlight>

or add the following line to /etc/modprobe.d/hid_apple.conf

<syntaxhighlight lang="bash">
options hid_apple fnmode=2
</syntaxhighlight>

and run:
<syntaxhighlight lang="bash">
sudo update-initramfs -u
</syntaxhighlight>

reboot your system - be happy! ;-)

==WLAN==
Download <syntaxhighlight lang="bash" inline>bcmwl-kernel-source</syntaxhighlight> package from https://packages.ubuntu.com/groovy/amd64/bcmwl-kernel-source/download and (re)-install it ([https://forum.ubuntuusers.de/topic/wifi-funktioniert-nicht-nach-neuinstallation/2/ info source]):

<syntaxhighlight lang="bash">
sudo apt remove --purge bcmwl-kernel-source

wget http://de.archive.ubuntu.com/ubuntu/pool/restricted/b/bcmwl/bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb

sudo dpkg -i bcmwl-kernel-source_6.30.223.271+bdcom-0ubuntu7_amd64.deb
</syntaxhighlight>

=have fun with Tex/Latex=
A few nice latex packages (tbd.):
<syntaxhighlight lang="bash">
sudo aptitude install texlive-base texlive-bibtex-extra texlive-binaries texlive-fonts-extra texlive-fonts-extra-links texlive-fonts-recommended texlive-lang-german texlive-lang-greek texlive-latex-base texlive-latex-extra texlive-latex-recommended texlive-pictures texlive-plain-generic texlive-science
</syntaxhighlight>

Udev rules for serial devices to make names fixed

2025-08-06T13:14:43Z

PTH:

To add a special device name to a serial device add the following udev rule to your system:

<syntaxhighlight lang="sh">
/etc/udev/rules.d/99-custom_serial_dev_MT.rules
</syntaxhighlight>

<syntaxhighlight lang="sh">

# serial tty interface of a FTDI driven device
SUBSYSTEM=="tty", ATTRS{idVendor}=="XXXX", ATTRS{idProduct}=="YYYY", ATTRS{serial}=="XXXXXXXXXX", SYMLINK+="ttyUSB_<my special dev name>"

# USB gadget driver for serial devices / tty interface
SUBSYSTEMS=="usb", SUBSYSTEM=="tty", ATTRS{idVendor}=="XXXX", ATTRS{idProduct}=="YYYY", SYMLINK+="ttyACM<my special dev name>"
</syntaxhighlight>

And finaly reload the udev rules:
<syntaxhighlight lang="sh">
sudo udevadm control --reload-rules && sudo udevadm trigger
</syntaxhighlight>

Then unplug/(re)-plug the device and if every thing goes well, your device has a symlink in the /dev/ folder.

Udev rules for serial devices to make names fixed

2025-08-06T13:13:02Z

PTH:

To add a special device name to a serial device add the following udev rule to your system:

<syntaxhighlight lang="sh">
/etc/udev/rules.d/99-custom_serial_dev_MT.rules
</syntaxhighlight>

<syntaxhighlight lang="sh">

# serial tty interface of a FTDI driven device
SUBSYSTEM=="tty", ATTRS{idVendor}=="XXXX", ATTRS{idProduct}=="YYYY", ATTRS{serial}=="XXXXXXXXXX", SYMLINK+="ttyUSB_<my special dev name>"

# USB gadget driver for serial devices / tty interface
SUBSYSTEMS=="usb", SUBSYSTEM=="tty", ATTRS{idVendor}=="XXXX", ATTRS{idProduct}=="YYYY", SYMLINK+="ttyACM<my special dev name>"
</syntaxhighlight>

And finaly reload the udev rules and then unplug/(re)-plug the device:
<syntaxhighlight lang="sh">
sudo udevadm control --reload-rules && sudo udevadm trigger
</syntaxhighlight>

2023-11-03T06:31:04Z

PTH: /* How do I squash my last N commits together? */

=Init new GIT Repo on the git server=
'''Setup a repo folder on the server'''

cd to the git repo location, log in as git and create a folder for the new git project repository
<syntaxhighlight lang="bash">
cd /srv/git
su git
mkdir <project>.git
</syntaxhighlight>

'''Init the repo on the server'''

cd into the <project>.git folder
<syntaxhighlight lang="bash">
cd <project>.git
git init --bare
</syntaxhighlight>

'''Setup the repo on your dev box'''
cd to a place of your choice and clone your new project repo:

<syntaxhighlight lang="bash">
cd <project repo location>
git clone <user>@<git server>:/srv/git/<project>.git
</syntaxhighlight>

Checkout the desird branch:
<syntaxhighlight lang="bash">
git checkout main
</syntaxhighlight>

=Local GIT Repos=
* [https://git-scm.com/book/en/v2/Git-on-the-Server-Setting-Up-the-Server Setting-Up-the-Server]

=Github=

== Create pull requests ==
* https://opensource.com/article/19/7/create-pull-request-github

==Signing commits using GPG==
* https://gist.github.com/ankurk91/c4f0e23d76ef868b139f3c28bde057fc

== How do I squash my last N commits together? ==
Reset the current branch to the commit just before the last 3:
<syntaxhighlight lang="bash">
git reset --hard HEAD~3
</syntaxhighlight>

HEAD@{1} is where the branch was just before the previous command.
This command sets the state of the index to be as it would just
after a merge from that commit:
<syntaxhighlight lang="bash">
git merge --squash HEAD@{1}
</syntaxhighlight>

Commit those squashed changes. The commit message will be helpfully
prepopulated with the commit messages of all the squashed commits:
<syntaxhighlight lang="bash">
git commit
</syntaxhighlight>

Finnaly, push the changes upstream:
<syntaxhighlight lang="bash">
git push
</syntaxhighlight>

or if you squashed remote commits
<syntaxhighlight lang="bash">
git push origin HEAD --force
git push <branch> HEAD --force
</syntaxhighlight>

==How to delete commits from remote==
[https://hackernoon.com/how-to-delete-commits-from-remote-in-git source]

If the commits you want to remove are placed at the top of your commit history, use the git reset --hard command with the HEAD object and the number of commits you want to remove.
<syntaxhighlight lang="bash">
git reset --hard HEAD~3
</syntaxhighlight>

To delete commits from remote, you will need to push your local changes to the remote using the git push command.
<syntaxhighlight lang="bash">
git push origin HEAD --force
</syntaxhighlight>

==How do I update a GitHub forked repository?==
* [https://stackoverflow.com/questions/7244321/how-do-i-update-a-github-forked-repository Source]

Add the remote, call it "upstream":
<syntaxhighlight lang="bash">
git remote add upstream https://github.com/whoever/whatever.git
</syntaxhighlight>

Fetch all the branches of that remote into remote-tracking branches

<syntaxhighlight lang="bash">
git fetch upstream
</syntaxhighlight>

Make sure that you're on your master branch:

<syntaxhighlight lang="bash">
git checkout master
</syntaxhighlight>

Rewrite your master branch so that any commits of yours that
aren't already in upstream/master are replayed on top of that
other branch:

<syntaxhighlight lang="bash">
git rebase upstream/master
</syntaxhighlight>

If you don't want to rewrite the history of your master branch, (for example because other people may have cloned it) then you should replace the last command with git merge upstream/master. However, for making further pull requests that are as clean as possible, it's probably better to rebase.

If you've rebased your branch onto upstream/master you may need to force the push in order to push it to your own forked repository on GitHub. You'd do that with:

<syntaxhighlight lang="bash">
git push -f origin master
</syntaxhighlight>

==tweaks==
===how to change commit message===

GitHub's instructions for doing this:

# On the command line, navigate to the repository that contains the commit you want to amend.
# Type <syntaxhighlight lang="bash" inline>git commit --amend</syntaxhighlight> and press Enter.
# In your text editor, edit the commit message and save the commit.
# Use the <syntaxhighlight lang="bash" inline>git push --force example-branch</syntaxhighlight> command to force push over the old commit.

2023-01-26T12:14:20Z

PTH:

Git Cheat Sheet

2023-01-06T14:08:19Z

PTH: /* Init new GIT Repo on the git server */

Main Page

2023-01-06T10:21:39Z

PTH: /* A few things to make life easier */

{{DISPLAYTITLE:<span style="position: absolute; clip: rect(1px 1px 1px 1px); clip: rect(1px, 1px, 1px, 1px);">{{FULLPAGENAME}}</span>}}

<p style="font-size:32px"><strong>Embedded Systems World</strong></p>

= [https://zephyrproject.org/ Zephyr] RTOS bits and bytes =
* [[Zephyr and the Memory Footprint]]
* [[Zephyr and Debugging]]

* [https://github.com/embeddedSystemsWorld/crispyZephyrSamples My Selection of crispy and crunchy Zephyr RTOS Samples]

* [[Get a specific Zephyr source code]]

= The Himbeeri =
* [[PTH's basic Raspberrypi installation]]
* [[PTH's embedded Raspberrypi tools and tweaks]]
* [[USB over ENET]]
* [[Remote Desktop]]

= Embedded Tools =
* [[pyOCD]] - for programming and debugging Arm Cortex-M microcontrollers
* SEGGER OZone - [[Zephyr and Debugging]]

= Graphic Tools =
* [[Inkscape]]

= A few things to make life easier =

* [[Linux and Windows Remote Desktop]]
* [[The famous selection of Linux bash commands]]
* [[My Ubuntu tweaks]]
* [[Git Cheat Sheet]]
* [[Ubuntu and name resolving]]
* [[vnc]]
* [[Altium Designer]]
* [[Virtualbox Autostart a VM]]

= Interfaces =
*[[RS485]]

=Haus und Hof=
* [[Heeting System]]

=[[Sandchaschte]]=

Git

2023-01-06T10:20:59Z

PTH: PTH moved page Git to Git Cheat Sheet

#REDIRECT [[Git Cheat Sheet]]