| # coding: utf-8 | |
| """Example result of vial_import_win_layout.py""" | |
| keymap = { | |
| "KC_1": '! ¹\n1 ¡', # Keyboard 1 and Bang, Win: VK_1, AT-101 position: 2 | |
| "KC_2": '@ \n2 ²', # Keyboard 2 and At, Win: VK_2, AT-101 position: 3 | |
| "KC_3": '# \n3 ³', # Keyboard 3 And Hash, Win: VK_3, AT-101 position: 4 | |
| "KC_4": '$ £\n4 ¤', # Keyboard 4 and Dollar, Win: VK_4, AT-101 position: 5 | |
| "KC_5": '% \n5 €', # Keyboard 5 and Percent, Win: VK_5, AT-101 position: 6 | |
| "KC_6": '^ \n6 ¼', # Keyboard 6 and Caret, Win: VK_6, AT-101 position: 7 |
Requires a Raspberry Pi with a DWC USB controller.
Should work with Raspberry Pi Zero (v1, v1.3, W, WH, 2 W), A, A+, 3A+, 4B.
Raspi 5 with firmware update sudo rpi-update is said to work also.
These guides have more details but are not updated for Raspberry Pi OS Bookworm which changed some network configuration related stuff (migrated to NetworkManager?):
Connected to my ESP8266-ESP-03 with following baudrate settings
BAUD = 9600
BOOT_BAUD = 115200
esp8266_at_test.py prints this:
PINGING esp8266...
> AT
>
| curl -G -s --data-urlencode "format=%FT%T%:z" http://www.timeapi.org/cet/now # www.timeapi.org cet is CET/CEST. Don't use cest | |
| date --iso-8601='seconds' -d "$(curl -s http://www.timeapi.org/utc/now)" # www.timeapi.org use local timezone settings | |
| date -d "$(curl -s http://www.timeapi.org/utc/now)" +"%FT%T (UTC%:z = %Z)" # not quite ISO with timezone illustration | |
| date -d "$(curl -s http://www.timeapi.org/utc/now)" +"%A %d.%m.%Y, %T (UTC%:z = %Z)" # non-ISO, easy readable by a german with day of week | |
| date --iso-8601='seconds' -d "$(curl -s --head http://google.com | grep ^Date: | sed 's/Date: //g')" # google.com | |
| date --iso-8601='seconds' -d "$(cat </dev/tcp/time.nist.gov/13 | cut -d' ' -f2,3) UTC" # NIST | |
| date --iso-8601='seconds' -d "$(cat </dev/tcp/de.pool.ntp.org/13)" # ntp pool project |
These steps show two less common interactions with git to extract a single file which is inside a subfolder from a git repository. These steps essentially reduce the repository to just the desired files and should performed on a copy of the original repository (1.).
First the repository is reduced to just the subfolder containing the files in question using git filter-branch --subdirectory-filter (2.) which is a useful step by itself if just a subfolder needs to be extracted. This step moves the desired files to the top level of the repository.
Finally all remaining files are listed using git ls, the files to keep are removed from that using grep -v and the resulting list is passed to git rm which is invoked by git filter-branch --index-filter (3.). A bit convoluted but it does the trick.
| http://tuxtweaks.com/2010/10/remove-old-kernels-in-ubuntu-with-one-command/ | |
| dpkg -l linux-* | awk '/^ii/{ print $2}' | grep -v -e `uname -r | cut -f1,2 -d"-"` | grep -e [0-9] | grep -E "(image|headers)" | xargs sudo apt-get -y purge |
| rsync -raXi --size-only /path/to/folder-to-backup/ /destinations/path/to/folder-to-backup | |
| same as | |
| rsync -rlptgoDXi --size-only /path/to/folder-to-backup/ /destinations/path/to/folder-to-backup | |
| same as | |
| rsync -rlptgoDXi --size-only /path/to/folder-to-backup /destinations/path/to | |
| -r recursive | |
| -l preserve links | |
| -p preserve permissions (also updates permission on not transferred files) | |
| -t preserve time (also updates time on not transferred files) |
| #!/bin/sh | |
| # | |
| # Read-only Root-FS for Raspian | |
| # | |
| # Modified 2015 by Pascal Rosin to work on raspian-ua-netinst with | |
| # overlayfs integrated in Linux Kernel >= 3.18. | |
| # | |
| # Originally written by Axel Heider (Copyright 2012) for Ubuntu 11.10. | |
| # This version can be found here: | |
| # https://help.ubuntu.com/community/aufsRootFileSystemOnUsbFlash#Overlayfs |
| # Source: http://thinkpad-forum.de/threads/179658-Wine-Wimp | |
| # The exe installer does not work. | |
| # Workaround: extract msi from exe, install msi. | |
| wine WiMP-3.1.0.1858-NO.exe /extract | |
| wine msiexec /i 8840086/WiMP-3.1.0.1858-NO.msi |
| apt-get install device-tree-compiler | |
| wget https://raw.githubusercontent.com/raspberrypi/documentation/master/configuration/images/dt-blob.dts | |
| # for example, set P1:26 (BCM pin 7) to active low (on Raspi B Rev2.0, in dts file from August): | |
| awk 'NR==104{print " pin@p7 { function = \"output\"; termination = \"pull_down\"; }; // SPI_CE1_N (P1:26)"}1' dt-blob.dts > dt-blob-mod.dts | |
| dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-mod.dts |