A fairly well-known and interesting montage

Project #12: Robotics - Arduino UNO R4 WiFi - Mk36

This simple Static Charge Monitor uses a parallel-plate detector and TL071 op-amp circuit to measure electrostatic fields, with real-time visualization via Arduino and PC software.

Xiao footprint (for Seeed Xiao and Adafruit QT Py boards) level shifter with a jumper.

Small voltage indicator using an old IC

This circuit is built based on the classics MAX232 and MAX485.

Discover the captivating fusion of technology and art with my latest project: unique fluorescent PCBs! I transformed ordinary PCBs into stunning luminous artworks using industrial and automotive fluorescent varnishes and paints.

Another electronic project.

Flea-Scope™ is a very low-cost ($18 from Elecrow) and easy-to-use 18 million sample-per-second (Msps) USB oscilloscope and mixed-signal logic analyzer with a built-in waveform generator, and so much more, based on the PIC32MK MCU!

Most people are unaware of Cosmic Rays, yet they exist everywhere, unseen or felt. They were created long ago when primary particles get accelerated to near the speed of light by the tremendous magnetic shockwaves when stars supernova, black holes eat, and binary stars merge. The very same processes that thrust heavy elements made inside stars and other extreme events to form interstellar dust, asteroids, planets, and the building blocks for life. Cosmic Rays are an ongoing and continuous reminder of the immense scale, age, and complexity of the universe and the importance of science to our understanding. Building a Cosmic Ray Muon Detector allows anyone to collect data and visualise or make music from Cosmic Ray showers here on Earth. It is an opportunity to share an appreciation of Cosmic Rays: how tiny our little blue planet is, where it exists within the vastness of the universe, a precious, rare and fragile place, something worth protecting.

Famous Actidamp Mk2 phono preamp construction excellent in audio quality, redesigned for modern parts.

Small night lamp with NE555 and one LED,

There are multiple ways to add floppy-sized storage to the Epson PX-8 or PX-4 computers. PFBDK offers a cheap, easy D.I.Y. solution.