
Home Assistant Connect AUX-2: an old stereo system, receiver, and inverter in a smart home
Nabu Casa continues to expand its Connect lineup. After the Zigbee/Thread adapter Connect ZBT-2 and the Z-Wave adapter Connect ZWA-2 comes the Connect AUX-2, which isn’t aimed at a new wireless protocol, but at hardware you already have at home: an old stereo system, AV receiver, UPS, heat pump, or solar inverter.
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Cookie cutter from an image: custom cookie cutters for 3D printing
I built a tool that turns an image, text, or a shape from the library into a cookie cutter for 3D printing. Beveled cutting edge, stamp with a handle, Linzer…

Free video editor in your browser: editing, titles, transitions, and MP4 export without installation
Web-based video editor at video.chiptron.cz: editing, titles on multiple tracks, transitions, music, and MP4 export. It runs in your browser, and your files stay on your device.

GlobalScanRX: An RTL-SDR scanner that records radio traffic and lets you play it back over the web
Leave a receiver running overnight and check your phone in the morning to see what was happening on the bands. GlobalScanRX is an open-source project that turns RTL-SDR dongles into…

One website and hundreds of useful tools for everyday use. Work with PDFs, images, videos, 3D printing, CAD, and much more
Tiny Online Tools offers over 570 free tools that run locally in your browser. PDFs, photos, video, QR codes, 3D models, and a slicer for 3D printing.

Hackers attacked Loxone: what leaked and what is safe
Austrian smart home manufacturer Loxone has fallen victim to a ransomware attack. What leaked, what wasn’t affected, and why a PHP vulnerability has nothing to do with it.

Krabix.cz: design a 3D-printable enclosure right in your browser in a few clicks
Krabix.cz is a Czech web-based enclosure configurator for 3D printing. It offers templates for Arduino, ESP32, and Raspberry Pi, STL and 3MF export, and is free to use without registration.

Satellite passes on ePaper. SkyEink calculates what you’ll actually see tonight
An ePaper display for your shelf that calculates each day which satellites you’ll actually see at night, along with hourly cloud cover and planets. Flash the firmware from your browser.

Layerling: Browser-based 3D CAD like Tinkercad, but with fillets and threads
Free 3D CAD right in your browser, with no account or installation. Controls you’ll recognize from Tinkercad, plus fillets, thread generation, and STEP export.

Starlink and stealth aircraft: what passive radar can and can’t do
They say Starlink has ended the era of stealth aircraft. I explain how passive radar works, why stealth isn’t enough against it, and why this still isn’t the end of…

Ads right after turning on the TV. The new 2026 trend and what to do about it.
Smart TVs in 2026 will start showing ads right after powering on. Who’s doing it, why Pi-hole isn’t enough, and what you can realistically do about it.