Collaborate Disseminate
If you’ve done much networking, you surely know the frustration of trying to connect to something, say a Raspberry Pi, that lives behind your consumer router. There are a number …read more Continue reading Linux Fu: Heads or Tails for VPN
If you didn’t live through it, it is hard to understand how excited the general public was about the race for the moon. You can capture some of it by …read more Continue reading Retrotechtacular: A View of the Moon from 1964
For whatever reason, [Jeremy] wants to photograph bees in flight. This is one of those things that doesn’t seem that hard until you try to do it. He’s got the …read more Continue reading Tracking Bees with a Stereo Camera
If you’ve ever worked with produce, you might know about grading. In addition to deciding if, say, a strawberry is good or not, they also have to sort them by …read more Continue reading Grading Tomatoes with an ESP32 and ML
[Leaded Solder] took on an interesting challenge. The BBC, apparently, produced a game console known as the BBC Bridge Companion that connected to your TV and helped you learn to …read more Continue reading The BBC Tetris Companion
Sandboxing a Linux process usually means spending a lot of effort deciding what it isn’t allowed to see. You might put it in a mount namespace, bind-mount a few directories …read more Continue reading This Filesystem is Born to Fail
Stepper motors are undeniably useful, but sometimes they need a bit of gearing to help perform their task. [Gjhudson2008] has a compact gearbox for NEMA 17 or 23 steppers that …read more Continue reading A 3D Printed Cycloidal Gearbox
You’ve probably heard of rubidium frequency standards, which are used where you need an extremely accurate time or frequency reference. [IMSAI] guy has a good explainer video about what’s actually …read more Continue reading Rubidium Frequency Standard Explained
PID controllers are everywhere. They regulate temperature, motor speed, power supplies, positioning systems, process equipment, and probably a dozen things within arm’s reach of you right now. They’re also frequently …read more Continue reading Calculus-Free PID (Almost) in a Spreadsheet
Everyone talks about the weather. This is doubly true for sailors, where bad weather could mean a very bad day. So it isn’t surprising that navies around the world have …read more Continue reading FitzRoy’s Glass: Victorian Weather Marvel or Glorified Thermometer?