Demystifying a 5x4 keypad matrix HC-35
On your favorite selling sites for cheap electronics you may find a nice looking keypad/push button matrix with 16 black buttons arranged in a 4x4 matrix, another row of 4…
Update on the AVR-Dx chips and PlatformIO
Changes to the system files When removing the link to the Arduino framework from the platformio.ini, PlatformIO reverts back to the older 1.7 toolchain, which still lacks support for the…
Taming the AVR64EA28 with PlatformIO
The AVR-EA family After the AVR-DA, AVR-DB and AVR-DD, already in 2022 Microchip continued the launching of new AVR-based microcontrollers with their AVR-EA series. These have some improvements over the…
AVR-Dx microcontrollers
History When i started this blog 15 years ago, one of my first entries from May 2010 was about my first steps with Atmel microcontrollers. Since then these microcontrollers have…
VSCode for everything
Atmel Microchip Studio 1 1/2 years ago now I have finally abandoned Microchip (Atmel) Studio for programming AVR microcontrollers. I have been using Atmel Studio from the very first day…
We need to talk about ChatGPT
There are other, more detailed analyses, looking behind the curtains of ChatGPT, this is just a short summary of my own experiences. For more details, look e.g. here: ChatGPT: Interacting…
Weird prices at Bauhaus
Bauhaus Uppsala har en märklig prissättning. Redan för några år sen var det svårt att inte nappa för ett rea-erbjudanden på lysdiodslampor som var "nedsatta" från SEK 149:- till SEK…
The TIAN MA A2C00096100 LCD
The electronics distributor https://www.pollin.de/ is often selling surplus displays, but normally these are not very well documented. The TIAN MA A2C00096100 LCD module is a 90 mm x 20 mm…
and more spam from Deutsche Domain
[:de]Wie scheinbar jeses Jahr um diese Zeit, so habe ich auch jetzt wieder ein als Rechnung getarntes Angebot erhalten, an eine mysteröse Firma ein paar hundert Euro zu überweisen. Aber…
Nicely rendered 7-segment numbers
User cbm80amiga has uploaded a nice library to render 7-segment numbers on graphical displays - especially for Arduinos. But the code can as well be used without any Arduino in…
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