This is homepage of ham radio station oh5hba. Info about me and my station, which may interest other ham operators can be found thru menu. This page contains links that I use often in my everyday life. Reason for this site is just for own fun and it helps to find important things when i’m not at my own computer.

Interesting news feeds from different sources:



  • Humans have domesticated animals since the dawn of time. Dogs (our oldest furry friends) were owned by humans as far back as 30,000 years ago, and since then we’ve formed bonds with all kinds of different creatures. It was only in the last century, though, that we started to actually build our own pets. The […]
  • The world of mechanical engineering is full of interesting and ingenious mechanisms. The Geneva drive, for example, translates rotary motion into intermittent ticking — perfect for a wristwatch or clock. With a clever mechanism, one can reduce the need for complicated control electronics. That was the case with the self-reversing screw that moves the guide […]
  • The history of making is now ready for the future: a 32-bit UNO will soon be available thanks to a powerful Renesas processor Here at Arduino we are thrilled to announce a new, revolutionary revision of the iconic UNO board, which will expand the concept of the open-source brand’s most iconic and popular product while providing […]
  • Bandwidth may have increased dramatically over the past couple of decades, but internet connections are often still quite unreliable. For people with unreliable connections, it becomes a chore to check a browser over and over again to find out when the internet is back up. To avoid that hassle, Emily Velasco built this monitor. This […]
  • Drone shows have become a big trend over the past few years, with some shows containing thousands of individual drones. Those shows are wildly expensive, because the drones can easily cost a couple thousand dollars each. A big part of the reason for their high cost is their onboard positioning systems, which need to be […]



  • Cosplay has evolved into a truly refined art. So many people are creating so many different incredible costumes that we’re always discovering new things. This MechaGodzilla by 小芊枫 XiaoQianFeng caught my eye so I had to click. What I was presented with turned out to be quite different than I expected. Given the topic, I […]
  • Hello 3D printing friends! Today I want to share a handy trick to get faster prints from your 3D printer, just by changing a setting in your slicer. It all started when I wanted to reduce the print time for this Neutron Tube model (Figure A ) from Clockspring. The Neutron Tube is a cylindrical container, […]
  • Welcome to Arduino Day 2023! We’re on-site at mHUB Chicago, bringing you live coverage — refresh often to make sure you see the latest! Learn more, plus be sure to catch Arduino’s live stream at ! We also have made available a special free PDF download featuring Arduino projects and more! NEW Arduino UNO […]
  • Supercapacitors are among the coolest of so-called passive electronic components. Because they are ultra-high-capacity capacitors, they can function as batteries capable of being very rapidly charged and briefly powering many electronic circuits and even small motors with bursts of power. And they’ll endure many more charge-discharge cycles than conventional rechargeable batteries. They’re great as backup power […]
  • Maks Zolin wanted to build a better, faster printer that was also quieter. He set out building the Voron printer in his garage but he ended up deciding that he didn’t want to run a 3D printer company. So, he open sourced his work and invited others to collaborate with him. That’s how Voron Design […]