The Arduino Emergency Assistive Device is a simple and low-cost embedded system designed to provide a local emergency alert. The system uses an Arduino UNO, push button, potentiometer, LED, buzzer, ...

Build a tiny ESP32 OLED keychain with a 1.3-inch display and custom 3D-printed enclosure. Wire the ESP32 S3 and program it ...

Canunda Synthesis Mx1K is a new free Oberheim Matrix 1000 Synthesizer emulation and hardware editor for macOS (for now).

The IKEA Kortlinje is a digital clock that costs around 20 dollars, featuring a hygrometer and thermometer. It’s another ...

Turn an ESP32-C3 SuperMini into a network health dashboard with Wi-Fi signal monitoring, DNS checks, and an OLED interface.

We’ve been talking about buttons. These can be small round things we use to fasten our clothes, or the things that we push to make something happen. Rob Buttons can be a temptation. We see one, we ...

There are some projects that seem at first sight to be easy, but anyone who tries them finds a whole heap of unexpected problems and turns to the off-the-shelf device. PCB antennas for example, or ...

Smartphones may give us an easy access to a light source, but for seeing objects at a distance or brightening a workspace in places like the attic or under the sink, you need the power and range of a ...

Build your own DIY ESP32 desk clock using the Wave Share ESP32C6 Touch AMOLED 2.16 board. Access source code and use the ...

As our beauty editor, I’m often asked by my friends about LED face masks. Do they actually work? The short answer is yes, but there are some caveats. These devices use various wavelengths, with red ...

Researchers at Lund University have developed a new type of light-emitting diode based on thin, branched nanowires that could offer significantly higher efficiency and lower production costs than ...