Custom 3D-printed ESP32 cases fit my DIY smart devices and help them survive outdoors ...

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

A smart investment.

Makers have built their own versions before, but almost all of them need a merchant account with a payment gateway, which ...

The engine has no framebuffer at all. Instead of drawing a picture in memory and sending it out, the Uno works out every line ...

A work-in-progress smartwatch PCB designed in KiCad around an ESP32-S3-WROOM-1 module. The current schematic includes USB-C power input, Li-ion battery charging and ...

IntroductionLast time, I created a GNSS viewer. Although I made it to view satellites, I included earthquake information as a ...

Schematic and PCB design for the ESP32 Cheap Yellow Display (CYD), made in EasyEDA Standard. I started this project to make it easier to work on the CYD hardware and explore improvements such as Li-Po ...

A group of four innovative biology and biomedical engineering students has created an impressive device known as PneumaNode, ...

I wanted something I could quickly glance at on my desk without having to open my smartphone every time I needed to check my schedule or the weather, so I built a calendar using an ESP32-C3 and a ...

Selectric-256 brings post-quantum encrypted messaging to offline computers, even vintage machines, with an $8 ESP32-based peripheral.

Critical Internet keys changed this week. Did you notice?  The keys behind DNSSEC, the system for cryptographically validating DNS responses, rolled over on October 11 2026. This is the second ...