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Monitoring and alerting | Monitoring USB device availability
A simple script is checking if the Smart Steppers are connected by USB. vim /opt/monitorUSBdevic...
Monitoring and alerting | InfluxDB
Install InfluxDB instance local database on Raspberry Pi A remote database, which is used a...
Monitoring and alerting | Smart Stepper value monitoring
For debugging purposes we monitor Smart Stepper values by the provided Python control service. Se...
Monitoring and alerting | GPIO Status of Relays
Relay for the LED lighting Relay for the power supply unit collectd Python plugin scrip...
Monitoring and alerting | collectd
apt install collectd vim /etc/collectd/collectd.conf FQDNLookup true BaseDir "/var/lib/collect...
Monitoring and alerting
Hangprinter consists of a lot of electronic components which can be monitored in different ways. ...
Webcam streaming with mjpg-streamer
The webcam used at Trikarus is used to deal for monitoring purposes and timelapse videos. Public ...
Repetier Server
Installation of Repetier Server https://www.repetier-server.com/manuals/0.85/index.html sudo su...
Duet 2 and Duet Web Control
Network configuration The Duet controller is attached to Raspberry Pi by USB and by LAN to route...
Wireguard Server/Client
We use Wireguard VPN client on hangdevice because it allows us to have a secure privat IPv4 (and ...
Raspberry Pi 3 B - watchdog
Install apt-get install watchdog Warning: Do never call "cat /dev/watchdog" because it will res...
Raspberry Pi 3 B - power optimizations and boot adjustments
Raspberry Pi overview Image source: https://www.elektronik-kompendium.de/sites/raspberry-pi/19...
Raspbian buster basic OS configuration
The OS is installed on Raspberry Pi 3 B featuring a High Endurance Micro-SDHC card 32 GB 100 MB/s...
Updating software
Backup the SD card image for larger upgrade → see High Endurance Micro-SDHC card 32 GB 100 MB/s U...
Duet Web Control and Repetier Server Macros
Baby Stepping - clear (set zero) M290 R0 S0 ;clear babystepping Baby Stepping - Down 0.1 mm M2...
Duet Web Control vs Repetier Server
The following table compares some essential features required for Trikarus project. Featur...
Mobile access using tablet
Trikarus uses a Tablet Lifetab P9812 by Medion to show the Repetier Server frontend and Grafana. ...
Freifunk Mesh Repeater / Access Point
Trikarus uses Freifunk firmware router to build up a network which can be used remotely. The rout...
Raspberry Pi 3 B - system wide USB handling
Persisting connected USB devices The following external hardware is connected to hangdevice #su...
Python 3.7
Trikarus uses Python 3.7 scripts. Before using Raspbian buster release the stretch version was us...