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We use Wireguard VPN client on hangdevice because it allows us to have a secure privat IPv4 (and ...

Install apt-get install watchdog Warning: Do never call "cat /dev/watchdog" because it will res...

Raspberry Pi overview Image source: https://www.elektronik-kompendium.de/sites/raspberry-pi/19...

The OS is installed on Raspberry Pi 3 B featuring a High Endurance Micro-SDHC card 32 GB 100 MB/s...

Backup the SD card image for larger upgrade → see High Endurance Micro-SDHC card 32 GB 100 MB/s U...

Baby Stepping - clear (set zero) M290 R0 S0 ;clear babystepping Baby Stepping - Down 0.1 mm M2...

The following table compares some essential features required for Trikarus project. Featur...

Trikarus uses a Tablet Lifetab P9812 by Medion to show the Repetier Server frontend and Grafana. ...

Trikarus uses Freifunk firmware router to build up a network which can be used remotely. The rout...

Persisting connected USB devices The following external hardware is connected to hangdevice #su...

Trikarus uses Python 3.7 scripts. Before using Raspbian buster release the stretch version was us...

Overview of used firmware and software + where to donate What? Why Version Source ...

Mount USB stick (backup stick) #format SD card mkfs.ext4 /dev/sda vim /etc/fstab configure fs...

We use mkcert tool to make secure localhost connections. For mkcert we need Go language installed...

vim /opt/swappy.sh #!/bin/bash free_data="$(free)" mem_data="$(echo "$free_data" | grep 'Mem...

We use this script in local mode to have a quick emergency halt possibilty. Never use this over i...

Monitoring the network neighbours can possibly help to find attack vectors in Freifunk Network. O...

  Description (copied from https://www.duet3d.com/DuetEthernet) This is the latest PCB re...

Electrical Components on the MisfitTech Smart Stepper Board Allegro 4954LPT DMOS PWM Motor Dri...