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 Pins
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 Makers
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 Station
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 Grinder
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