Demystifying a 5×4 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…