Nov 14, 2025, 6:03 PM
Following the theoretical foundations of LoRa radio technology, this article presents its practical implementation. After an overview of the most important LoRa chips from Semtech, I introduce a driver for the SX1262 and a practical tool for conducting initial LoRa experiments.
Nov 12, 2025, 8:26 PM
This article explains the technological foundations of LoRa radio technology. The functionality of Chirp Spread Spectrum (CSS) modulation is described in detail. It highlights how the parameters Spreading Factor (SF) and Bandwidth (BW) control the transmission.
Oct 30, 2025, 9:41 AM
Elecrow has revised the CrowPanel Advance 7.0 display, addressing the biggest criticism of the first version: The backlight can now be controlled via PWM. This article shows the technical changes and demonstrates how to control it using ESP-IDF and LVGL.
Aug 30, 2025, 8:34 PM
An old Bodet BT 6.30 flip clock gets a second chance! What started as a cheap find on a classifieds site turned out to be a real DIY adventure. A scratched front, a broken logo, and charred components on the inside. I'll show you how I not only visually restored this slave clock but also brought it into the 21st century with an ESP32.
Aug 14, 2025, 8:04 PM
A lightweight library for the ESP32 for dynamic configuration of Wi-Fi access data. Implements a web server & captive portal for user-friendly provisioning. This allows the SSID, password and time zone to be transferred to the ESP32 without a special app.
Jul 27, 2025, 10:03 PM
My 3D printer is perfect for plastic parts, but it can't handle wood. So, I added the Lunyee 3018 Pro Ultra CNC router to my workshop. This post guides you through the entire process: from assembly and CAM software to the first successfully milled wooden part. Is this the perfect start for your CNC journey? Let's find out!
Jul 6, 2025, 8:59 PM
The Zyklochron Evolves: See how the elegant cedar wood base was created using CNC milling and 3D printing, forming a perfect symbiosis of technology and design.
May 9, 2025, 8:09 PM
This guide will show you how to install the Lyrion Music Server (formerly Logitech Media Server) on a Raspberry Pi 5. This version of the server uses an NVMe SSD instead of the standard SD card, making it extremely powerful. I have also housed it in a retro-style case.
Apr 10, 2025, 10:05 PM
With the ESP32-C5, Espressif is bringing dual-band Wi-Fi (2.4 & 5 GHz) to a microcontroller for the first time. Espressif kindly sent me two pre-production models of the ESP32-C5-DevKitC-1 development board. I measured how the new microcontroller performs in practical tests.
Mar 28, 2025, 11:55 AM
40 years ago, I soldered together the mc-68000 homebrew computer. After 35 years in the basement, I am now trying to get the computer running again. I don't know yet if I will be successful, but it's an exciting journey into the past.