Most applications on single board computers (SBCs) running Armbian do not need 1GBit/s Ethernet connections. By limiting the connection speed to 100MBit/s around 150mW of power can be saved up thus reducing CPU…

The ESP32 from Espressif features - along with a lot of other cool function blocks - an Ethernet MAC with an RMII-interface. You only have to add an Ethernet PHY, some transformers, a RJ45 connector…

Most of the ATMEL programmers I have in my fundus such as the JTAGICE MK2, the JTAGICE3 and the AVR Dragon are not enabled in the Arduino-IDE by default. Especially the AVR-Dragon and its high…

KiCad is a powerful open-source PCB-layout software suite which I prefer over Eagle (despite using Eagle for over a decade). I'm using KiCad now for over a year on a Lubuntu system where the installation…

The FrSky D4R-II is a miniature conventional 4-channel or 8-channel CPPM telemetry RC-receiver weighing less then 6 grams. But in contrast to its bigger brother FrSky D8R-XP, only one external analogue value can be applied…

Um Standard-Haustüren elektrisch öffenbar (Zutrittskontrollsysteme, Kartenleser, Fingerabdruckleser, Hausautomation) und gleichzeitig einigermaßen sicher zu machen, eignen sich selbstverriegelnde Motorschlösser der Dorma SVP-2000 Serie: Der Riegel wird automatisch ausgefahren, sobald die Tür geschlossen wird. Die Falle wird…