Scavenging CDs For Flexible Parts

CDs are becoming largely obsolete now, thanks to the speed of the internet and the reliability and low costs of other storage media. To help keep all of this plastic out of the landfills, many have…

Putting A Cheap Laser Rangefinder Through Its Paces

Sometimes a gizmo seems too cheap to be true. You know there’s just no way it’ll work as advertised — but sometimes it’s fun to find out. Thankfully, if that gadget happens …

Saving Birds With 3D Printed Boats

Montana, rightfully nicknamed the big sky country, is a beautiful state with abundant wide open landscapes, mountains, and wildlife. It’s a fantastic place to visit or live, but if you happen…

2022 Sci-Fi Contest: Multi-Sensor Measurement System

Many sci-fi movies and TV shows feature hand-held devices capable of sensing all manner of wonderful things. The µ Spec Mk II from [j] is built very much in that vein, packing plenty of functionali…

Nikon Designs Sensor That Has Both a Global and Rolling Shutter

Two in one.

Weather Station Predicts Air Quality

Measuring air quality at any particular location isn’t too complicated. Just a sensor or two and a small microcontroller is generally all that’s needed. Predicting the upcoming air qual…

3D Printed Radiation Shields Get Put To The Test

Don’t get too excited, a 3D printed radiation shield won’t keep you from getting irradiated during WWIII. But until the Doomsday Clock starts clanging its midnight bell, you can use one…

Multigeiger Geigerzähler-Sensor auf ESP32-Basis selber bauen und Radioaktivität messen, loggen und visualisieren

Geigerzähler Sensor auf ESP32 Basis selber bauen und Radioaktivität messen und loggen

Printable Portable Mask Gives You The Numbers On Your Workout

We’re currently in the midst of New Year’s Resolutions season, which means an abundance of spanking new treadmills and exercise bikes. And one thing becomes quickly obvious while using …

Wokwi - Online Arduino and ESP32 Simulator

Netzpolitik-Feed with benefits (@netzpolitik_feed@chaos.social)

5.59K Posts, 42 Following, 2.76K Followers · Ich linke auf aktuelle netzpolitik.org-Artikel. Mein Herz schlägt mit Hilfe von feed2toot, @rixx und gelegentlichen Wortmeldungen der Redaktion.

Jigglypuff Sensor Breathes CO2 So You Don’t Have To

We’ve seen a lot of environmental monitoring projects here at Hackaday. Seriously, a lot. They usually take the form of a microcontroller, a couple sensors, and maybe a 3D printed case to kee…

Low-Cost Computer Gesture Control With An I2C Sensor

Controlling your computer with a wave of the hand seems like something from science fiction, and for good reason. From Minority Report to Iron Man, we’ve seen plenty of famous actors controll…

Capacitive Touch Controller For FPGAs

Most projects that interface with the real world need some sort of input device. Obviously this article is being written from a standardized “human interface device” but when the comput…

Using Arduinos To Drive Undocumented Displays

For those of us old enough to remember the VCR (and the difficulty of programming one), the ubiquitous vacuum fluorescent display, or VFD, is burned into our memories, mostly because of their brigh…

3D Printed Sensor Detects Glyphosate

Typically, detecting glyphosate — a herbicide — in a beverage requires a sophisticated test setup. But Washington State University has a 3D printed sensor that uses nanotubes to simplif…

3D-Printing Complex Sensors And Controls With Metamaterials

If you’ve got a mechatronic project in mind, a 3D printer can be a big help. Gears, levers, adapters, enclosures — if you can dream it up, a 3D printer can probably churn out a useful p…

Compact Sensor Keeps You Safe By Watching CO2 Levels

Remember when work meetings were just a bunch of people filling up a small, poorly ventilated room with their exhaled breath? Back in the good old days, all you had to worry about was being lulled …