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A hobbyist builds a portable wide-screen electromechanical TV called the Scanwheel, using a 3D-printed drum and Raspberry Pi Pico to achieve a 4K by 20 resolution, inspired by early television technology like Nipkow disks.
The author built a custom choker with an OLED screen for DEF CON to encourage social interactions, detailing the selection of a screen, board design with RP2350, and prototyping process.
A blog post detailing the construction of a physical Conway's Game of Life implementation using a custom PCB, AVR microcontroller, and LED switches for interactive art.
A discussion about a DIY civilian phased-array radar that provides 360° surveillance within a 6-kilometer radius and can detect small aerial vehicles.
A hobbyist built a functional self-powered computer that is literally the size of a credit card and about 1mm thick, using an ESP32, NFC, e-ink display, and custom flex PCB.
The article details the development and viral success of 'Transit Tracker,' an open-source DIY project for creating custom public transit arrival boards using ESPHome and LED matrices.
An article detailing the hands-on assembly and testing of a TD4 4-bit CPU based on the book 'How to Build a CPU' and open-source PCB designs.