Add Motorized Faders Over Two I2C Pins
Several motorized sliders usually mean extra drivers, feedback wiring, and GPIO use. FaderBuddy puts that work on a modular board for 60 mm faders, with an ATtiny1616 handling motion locally. One I2C bus can serve multiple boards, while ESPHome connects the controls to Home Assistant with a little YAML.
Read the build on github.com: Add Motorized Faders Over Two I2C PinsFeatured in TinkerNews Issue 55 ·
More DIY Electronics builds
19 buildsA CYD Project Menu for Makers
One inexpensive ESP32 Cheap Yellow Display can become a music dashboard, F1 notifier, game system, video player, graphics demo, or 3D-printer panel. This community directory gathers links and flashing tools in one place, while reminding readers to check each project’s parts, documentation, wiring, and installation steps first.
Read the build on github.com: A CYD Project Menu for MakersESP32 Hot-Air SMD Rework Station
Thermocouple feedback and PID control give this ESP32 hot-air station a measured way to heat surface-mount parts. Its custom PCB, MicroPython firmware, and programmable airflow make it more than a loose collection of modules, while the high-temperature hardware demands careful insulation, grounding, cooling, and power handling.
Read the build on github.com: ESP32 Hot-Air SMD Rework StationReverse-Engineering a Failed Fellow Opus Grinder
Two snapped capacitor legs stopped a Fellow Opus grinder after a year of use. A careful teardown found a layered Class II enclosure, modular power and control boards, and a simple path toward diagnosis. Comparing the failed 2023 unit with its 2025 replacement also revealed useful design lessons for appliance repair.
Read the build on hackaday.io: Reverse-Engineering a Failed Fellow Opus GrinderReconstructing a Forgotten Microprofessor Sound Board
Photographs, a MAME ROM dump, and knowledge of the AY-3-8910 help rebuild an obscure Microprofessor sound board. The result is a useful KiCad schematic and annotated software, not a finished replica. Missing manuals still leave its interface and routines partly unverified, but the work preserves valuable hardware clues.
Read the build on hackaday.io: Reconstructing a Forgotten Microprofessor Sound BoardOOMWOO: A Local, Open Robot Vacuum
OOMWOO treats a robot vacuum as a complete maker-built system: 3D-printed parts, LiDAR, Raspberry Pi computing, microcontrollers, ROS2, and Home Assistant work together without required cloud services. It remains an early-development project, though, with full build instructions planned for Fall 2026 rather than a ready-made weekend kit.
Read the build on github.com: OOMWOO: A Local, Open Robot VacuumBuild a Raspberry Pi Handheld Console
A Raspberry Pi, RetroPie, custom controls, and a 3D-printed case become a portable game console in this detailed build. The guide covers setup, GPIO wiring, screen mounting, battery power, assembly, and testing, while honestly describing the soldering, programming, fitting, and troubleshooting skills the project demands.
Read the build on leandrolinares.com: Build a Raspberry Pi Handheld Console