Sirojudin Munir has released a complete open-source Field-Oriented Control driver for BLDC and PMSM motors, featuring STM32 firmware, KiCad hardware design, and a Python GUI for control and monitoring.
Phil Underwood has spent twenty years mapping underground caves. His work has produced a series of open hardware devices that increase the speed and accuracy of surveys, culminating in a complete photogrammetry system based on a Raspberry Pi 5 Compute Module.
Pi-Ener-lite is a compact UPS for Raspberry Pi Zero with a CW2015 fuel gauge, DS1307 RTC, and 18650 battery support, all connected via spring-loaded pogo pins.
SonicFly lets a drone follow another using only the sound of the leader’s rotors—no GPS, cameras, or radio. Built by Yanbaihui Liu, it uses a four-microphone array, neural network, and Kalman filter to estimate position acoustically.
PyBLE is an open-source MicroPython IDE that communicates over Bluetooth LE, letting you code, run, and debug ESP32 boards wirelessly from a tablet or iPad—no cloud, no USB cable, no PC required.
Control a gate or other electronic devices from your smartphone using the Ganimede.E12 board and a dedicated mobile app, with a focus on privacy and security.
Gemma Translator is an open-source multilingual voice interpreter for Raspberry Pi 5 that runs entirely on-device, using Google Gemma 4 and LiteRT, with a retro-terminal UI and no cloud dependency.
A maker known as PRBS23 has freed the MasterBuilt Gravity 800 Grill controller from proprietary firmware, replacing it with an open source firmware featuring PID temperature control, over-the-air updates, and a real-time web interface.
Build a no-code ePaper weather dashboard with the Seeed Studio XIAO EE05 and SenseCraft Seeedash. Drag-and-drop widgets, flash firmware, and display temperature, humidity, wind, and more on a 4.26-inch ePaper screen.
Build a scriptable USB keyboard using a Teensy board that emulates a standard keyboard and can be controlled over serial from a laptop or a Raspberry Pi, letting you interact with pre-boot menus and BIOS settings without a physical keyboard.
Discover the ePaper smart journal, an open-source electronic notebook built with a Raspberry Pi Zero 2 W, a Waveshare ePaper display, and an M5Stack CardKB keyboard. It offers the simplicity of paper with the power of a computer, perfect for capturing ideas without distractions.
A four-video series explores the analog-to-digital and digital-to-analog converters on the Arduino UNO R4, from basic concepts to building a practical electronic voice changer with just a few passive components and a dynamic microphone.
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