Chances are you’re likely familiar with POV displays. These devices move through the air at a high enough speed to trick your eyes into thinking that a sequence of flashing lights is actually a solid image. Though interesting enough in two dimensions, LED aficionado “Gelstronic” decided to add more depth to his display, stacking 12 […]
If you want to truly impress your grandkids, and perhaps entertain yourself at the same time, there are many things you could do. Building a 1/4-size railroad, however, has to be close to the top of the list. This well-constructed model was inspired by a 1965 Popular Mechanics article, and includes a beautifully-painted engine, a 275-foot-long […]
The La Fabrique DIY team has been working on a unique clock modeled after buildings seen along the Seine River in Paris. The “City Clock” is different from the others in that instead of a dial or decimal numbers, windows light up in a binary format, displaying the time in a binary sequence. Electronics-wise, the clock can be made […]
While touchscreens are nice, wouldn’t it be even better if you could simply wave your hand to your computer to get it to do what you want? That’s the idea behind this Iron Man-inspired gesture control device by B. Aswinth Raj. The DIY system uses an Arduino Nano mounted to a disposable glove, along with hall […]
What has eight legs, a tail, and is powered by an Arduino Mega? The ClearWalker, of course! This Strandbeest-style walker employs two motors, controlled by individual H-bridge relay modules to traverse forwards, backwards, and slowly rotate to one side or another via a hesitating leg motion. You can see how the electronics (including a bunch of LEDs) […]
YouTuber “HomoFaciens” had quite a bit of square tubing to cut for his latest CNC router. As he’s known for combining simple tools with creative uses of electronic components, he came up with a jig that helps him precisely position his cuts. This device works using an encoder made out of paper, tape, and a nail […]
We’ve all seen hamsters in a cage, furiously running nowhere. Perhaps you’ve thought about the pointlessness of this activity, before going to the gym to lift weights up and down or run on a treadmill. From an outside perspective, both activities seem pointless, but when you realize the benefits, maybe tracking what “feats of strength” you’re […]
If you’re familiar with the Segway or other vehicles that balance in what is known as an “inverted pendulum” configuration, you may think that while interesting, creating something similar would be too complicated or out of your budget. Though perhaps still not simple, Joop Brokking takes you through his design for this type of bot in […]
Depending on your point-of-view, you may see claw machines as an interesting device that can normally be ignored, or perhaps magnet for quarters that you must satisfy until you capture the stuffed animal that’s “so easy to get.” Maybe these gantry-crane gadgets would be a bit more fun if you could play them at home to your heart’s […]
Hacker “MmmmFloorPie’s” senior project in college, in 1989, was a device based on the venerable Motorola 6800 chip that could record and play back sounds. It could also display these recorded waveforms on a monochrome CRT monitor. The monitor in question was purchased as a bare CRT for $20, and mounted in the cardboard box […]
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