A review of the Tiny Code Reader, a $7 QR code sensor, detailing its setup, functionality with I2CDriver, limitations (tight centering requirement), and internal components (RP2040 microcontroller and Arducam image sensor).
This article details the design and construction of a 512-bit magnetic core memory system running at 200kHz, including the challenges faced, scaling techniques, and practical advice for building your own system.
Documentation for the ESP32-2432S028R, nicknamed the "Cheap Yellow Display" (CYD), a 2.8" LCD with touchscreen. Includes setup, examples, troubleshooting, and community links.
Building a community around a cheap ESP32 Display with a touch screen. This display is an ESP32 with a built in 320 x 240 2.8" LCD display with a touch screen called the "ESP32-2432S028R".
This project details building a system to send images in real-time from high altitude using SSTV (Slow-Scan Television) and PMR walkie-talkies. It covers hardware setup, code configuration, and launch results. Note: PMR is under ham radio license in US.
