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IoT Gate Opener with the Ganimede.E12 Board
With the Ganimede.E12 board, we manage the opening and closing of a gate, or other electronic devices, using a dedicated smartphone application. The problem with DIY IoT devices Nowadays, attention to...
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Soil Moisture Sensor
Equipped with a fork-shaped sensing element, it is ideal for detecting soil moisture levels in various applications, not least monitoring plant health, but also detecting the presence of water on the...
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Automated Mini Greenhouse with ESP32 and Sensors for Home Assistant
The ESP32 mini greenhouse is a smart project that lets you monitor and control the indoor environment for growing small plants. It uses an ESP32-C3 Super Mini board, environmental sensors, and...
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Angelo: an open source portable audio amplifier optimized for the human voice
We build a portable, open source audio amplifier optimized for the human voice, designed to improve communication with elderly or hearing-impaired people, and easy to use and customize. Some projects...
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GSM Emergency Call System with RF Receiver for Elderly and Bedridden Patients
This emergency call system uses a cellular module and an RF receiver tuned to a dedicated transmitter. Pressing the transmitter button sends phone calls and SMS messages to selected numbers, making it...
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How to Build a 1000W ZVS Induction Heater Using a Resonant RLC Circuit
Let’s Melt Metals Using the ZVS (Zero Voltage Switching) Technique Applied to a 1,000W RLC Resonant Circuit Have you ever wondered how intense the electromagnetic fields surrounding us can be? This is...
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How to Control NeoPixel Installations via Wi-Fi Using Fishino and NodeMCU...
We create NeoPixel light installations with Fishino and NodeMCU controlled via Wi-Fi from a PC or Raspberry Pi using a Python library. A few years ago, the American company Adafruit Industries...
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Creating a Unique Electronic Musical Instrument: The Sound Wall
We place metal foil notes on a panel and play our music by touching them, creating a melody from a truly original instrument. Those who know a little about music or have good memories of the “music...
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Efficient and Compact Stereo Power Amplifier: Unleash High-Quality Audio with...
Stereo power amplifier 10+10W into 8 ohms based on the integrated PAM8610, suitable for systems that require high efficiency and little heat to be dissipated. By now, the miniaturization of...
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Terminus FE1.1 USB hub board: the solution to connect four USB devices
Based on a single chip from Terminus, it allows you to connect four USB devices starting from a micro USB port; the form-factor is designed for pairing with Raspberry Pi Zero. We all know what a...
View ArticlePi-Ener-lite: Compact UPS with Fuel Gauge and RTC for Raspberry Pi Zero
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.
View ArticleSonicFly: the drone that follows another drone using only sound
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...
View ArticlePyBLE: A Bluetooth LE MicroPython IDE for ESP32
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.
View ArticleIoT Gate Opener with the Ganimede.E12 Board
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.
View ArticleGemma Translator: offline voice interpreter on Raspberry Pi 5
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.
View ArticleOpen Source Firmware for the MasterBuilt Gravity 800: Controller Reverse...
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...
View ArticleePaper weather dashboard with XIAO EE05 and SenseCraft Seeedash
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...
View ArticleScriptable USB keyboard with Teensy and Raspberry Pi
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...
View ArticleePaper Smart Journal: The Distraction-Free Notebook with Raspberry Pi
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...
View ArticleArduino UNO R4: A/D and D/A Converters for Audio, from Testing to a Voice...
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...
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