F() Macro with Strings in Arduino Programming
When working with ESP8266 or with Arduino boards I sometimes come across expressions like client.println(F(“Server started.”)); – That is the moment when I wonder what difference there is compared to
Category: Linux
Pinout for Wemos D1 Mini Pro China Clone
I recently bought a Chinese clone of the Lolin Wemos D1 Mini Pro ESP8266 device from the FEIYANG store at AliExpress. As I had problems running Wifi when setting the
Installing Mayan EDMS on Ubuntu 20.04
The Mayan EDMS documentation offers two ways for the installation on a Ubuntu 20.04 LTS machine: The first one is via Docker, the second one is the direct installation. I
Import Geogebra plots to LaTeX
A couple of years ago I recommended using gnuPlot for producing high quality plots of functions and time series. There has been a lot going on in data visualization since
Efficient backup of your Raspberry Pi
Anyone who runs critical services such as web servers or private clouds on a Raspberry Pi is well advised to produce regular backups. The usual procedure is to remove the
Updating Nextcloud via Updater GUI
While the updater GUI is really comfortable, I regularly run into difficulties with file permissions and timeouts. This post summarizes the steps needed to run an update via Nextclouds Update
pyGTK – TreeView model with both filter and sort features
For someone who wants to write adminstrative office software that communicates with a database in the background, Gtk’s TreeView object is probably one of the most interesting widgets. Unfortunately, with
pyGTK ListBox Example
Fans who regularly watched the “Weeds” TV series will probably remember the Little Boxes opening music when looking at the pyGTK ListBox tutorial when looking at the code. There are
pyGTK pack_start parameters
When I started to work with pyGTK, I had the impression that documentation is not as abundant and detailed as for learning the standard Python language in general. Among the
iTAN Listen mit Hilfe von OCR einlesen
Obgleich die iTAN als Auslaufmodell gilt, schicken viele Finanzinstitute ihren Kunden weiterhin solche Listen als “fall back”, wenn moderne Verfahren scheitern. Meine Hausbank versendet solche Listen in einem Format, das