The Reolink Video Doorbell PoE is a practical network video doorbell. It features PoE power, a local web interface, streaming support, and can be integrated into a home automation system. In practice, however, the official Reolink mobile app may announce a button press with a noticeable delay. In my case, it was about 20 seconds, which is far too long for a doorbell.
A fast, feature-rich MicroPython driver for the Waveshare 2.9inch e-Paper B V3 display (128×296 pixels, black/white/red), 1.54-palcový e-Papaper V2 (200 x 200 pixelov, black/white touch display).
Optimised for ESP32-S3 Zero, but works on any MicroPython board with SPI.
Note: MicroPython firmware v1.19+ required
I got hold of an older Lenovo W541 notebook equipped with an Intel Core i7 processor and an Nvidia Quadro 2100 graphics card, which even today offers above-standard computing performance, and Windows 11 runs fast, as it should. After the necessary hardware repair and diagnostics, it was time for the software, and thus also the BIOS upgrade to the latest available version 2.42, which turned out to be more complicated than it seemed at first glance.
The era of artificial intelligence is definitively here, impacting all spheres of our lives more and more intensely, day by day. The field of amateur radio is no exception. In the following article, I will try to clarify the possibilities and methods of using artificial intelligence (hereinafter referred to as AI) in amateur practice as well.
It is increasingly common that modern integrated circuits are only available in SMD packages. In most cases, the manufacturer offers development kits for developing applications with such integrated circuits, with the price often reaching several hundred euros. 
