Tutorials
Portable soldering iron Sequre SI012 Pro Max – what is it like?
I bought a soldering iron for testing, a complete set, from the company Sequre – specifically the SI012 Pro Max model. I was and still am very impressed with the…
HackMaster Pi: a pocket tool for testing (not only) IoT security
The HackMaster Pi project is a low-cost, open, and modular tool built on Raspberry Pi that allows for simulating and analyzing various attacks. HackMaster Pi is an open-source project primarily…
ESPHome Designer. Create your own clear dashboard available for Home Assistant.
Creating an information display for ESPHome isn’t exactly straightforward. Every change requires editing the YAML, uploading it to the device, and waiting to see if it looks as you intended.…
The brightest filament on the market? I checked it. It shines for 12 hours.
Prusa3D has released a new filament, and it’s not just any filament. It’s said to be the brightest on the market. I bought a sample and tried it out. You…
Open-source project for measuring indoor air quality with Home Assistant support.
A project for measuring air quality in homes, offices, or schools based entirely on open-source products, with support for home automation via Home Assistant. It provides a comprehensive analysis of…
Project of a multi-channel spectral analyzer for public lighting.
Public lighting, light pollution, circadian rhythm, blue component – these terms have been frequently discussed lately. Sodium lamps are being replaced by LED sources, which save energy but have downsides,…
Box for a 3D printer from Ikea… and it’s not a Lack. It looks good and there’s space for filaments too.
What to place a 3D printer on? This is an age-old question for the coexistence of a 3D printer and its owner’s partner. It should look nice to not disrupt…
We are learning to use automated image detection with AI. Real application on OnlyBirds.cz.
Object, animal, or person detection can be easily accomplished today thanks to AI. Michal Ševčík wrote this article for his project OnlyBirds – bird detection. The same knowledge can be…
USB-C, myths and nonsense.
An article about USB-C was published on HN, and I simply have to respond. Besides a few inaccuracies, there has also been a wave of nonsense and myths on social…
New hobby? Let’s measure the radioactivity of objects and natural materials. Why, how, and with what?
Measuring ionizing radiation (generally radiation) is relevant today not only for experts but also for enthusiasts or collectors of minerals and antiques. Ionizing radiation is invisible, imperceptible, and that makes…
