Han has created a 512-bit magnetic core memory module and documented the process, including wiring details and oscilloscope traces. The module has passed extensive testing, demonstrating the reliability of ferrite memory. The article details the principles of magnetic core memory and provides links to resources for building your own.
This article details a DIY atomic force microscope built from mostly junk parts. It utilizes a laser-based deflection reading system instead of traditional piezo motors, achieving 35-um resolution with readily available materials. The project focuses on simplicity and cost-effectiveness, making it suitable for educational purposes.
Glowtape is a unique DIY wristwatch by Henner Zeller that uses glow-in-the-dark tape and an RP2040 microcontroller to display the time.
