open-source
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iPod Lives Again: Open-Source RPi Motherboard Adds Wi-Fi, Bluetooth, USB-C, 2TB Storage, Spotify, Apple Music & More For nearly two decades, vintage Apple iPods have been dormant in desk drawers, victims of dead batteries, obsolete charging cables, and retired iTunes libraries. Now, a London-based hardware startup called Certain Things is changing the narrative with Sprout, an open-source replacement motherboard that drags early-2000s music players kicking and screaming into the modern wireless era. Rather… |
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These ESP32-Powered PCB Badges Run Among Us and Let Hackathon Participants Build Their Own Games A simple event badge can do more than display a name. Nick Ficara designed and developed programmable electronic badges for Hack the North, a major student hackathon in Canada, after being approached by Alex, a project manager at the event. Unlike ordinary event badges that only display a name or event logo, this ESP32-powered hacker badge works as a small computer that participants can… |
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This ESP32-C5 Picks Up India’s NavIC Satellite Signal Using Its Built-In 2.4 GHz Radio, in Early Test The open-source snappnt project, developed by h-shiono, explores whether an affordable ESP32 board can detect signals from India’s NavIC satellite navigation system. NavIC is used for satellite-based navigation, but this project does not work like a normal GPS tracker. Instead, it captures very short samples of radio signals and uses software to search for a known satellite signal pattern.… |
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SignalSweep: Open-Source BLE and Wi-Fi Scanner on ESP32-C5 That Can Detect AirTags, Flock Cameras and Drones SignalSweep, an open-source project published on GitHub by a developer using the handle B0z0dcl0wn, turns a Seeed Studio XIAO ESP32-C5 into a pocket-sized scanner for trackers, surveillance hardware and drones. It is licensed GPL-3.0-or-later. The C5 is the main target because it can listen to both 2.4 GHz and 5 GHz Wi-Fi alongside Bluetooth LE, and the developer argues that more cameras and… |
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This $2 ESP32-C3 Uses Flash Storage to Build a DNS Ad Blocker for 140,000+ Domains With Just 50 KB RAM The ESP32-C3 AdBlock is an open-source project that turns a low-cost ESP32-C3 microcontroller into a DNS-based ad blocker and tracker system. DNS helps devices find the IP addresses of websites and online services. This project checks DNS requests against a blocklist of known advertising and tracking domains. If a domain is blocked, the ESP32-C3 returns 0.0.0.0 instead of its real IP address.… |
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This Open-Source 68008 DIY Computer Runs CP/M-68K BASIC and Custom Programs Using a 3-IC Lite Design The 68k-MBC is a homebrew single-board computer built around the Motorola 68008 processor, running at 8 MHz. What makes it interesting is that it can be built in two versions, Lite and Full. The Lite version keeps the hardware very simple, using three main ICs: the 68008 CPU, a PIC18F47Q10 microcontroller, and SRAM. It supports 128 KB or 512 KB of RAM and can run CP/M-68K. The Full version… |
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This ESP32-S3 Real Life Color Picker Brings the Digital Eyedropper to the Real World With RGB and HEX Values Tech Talkies Youtube channel has built a handheld color picker using the ESP32-S3 that can scan the color of a real-world object and show its RGB and HEX values on a small display. Users can point the device at a surface, capture its color, and see the result without relying on a phone camera or computer. This makes it useful for designers, makers, artists, and anyone who wants to quickly… |
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Open-Source Pocket Tank Runs a 14.3M-Parameter AI Model on an ESP32-S3 to Give Virtual Fish Their Own Brains Pocket Tank is an open-source virtual fish tank that uses a small AI model to control its virtual fish. It runs on an ESP32-S3 and creates a small aquarium where fish can eat, explore, rest, follow other fish, play, and interact with each other. Each fish has different values such as hunger, energy, curiosity, stress, boredom, and trust, which can change how it behaves. The project was created… |
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This DIY Open-Source mmWave Presence Sensor Features ESP32-C6 With Precision 2D Spatial Tracking Traditional infrared presence sensors are cheap, but unreliable for smart homes, often turning off lights if you remain still for even a few seconds. Millimeter-wave (mmWave) radar modules offer a far superior alternative by detecting micro-movements like breathing and even tracking a person's exact 2D position in a room. However, commercial mmWave presence sensors can cost anywhere from $40… |
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This Open-Source DIY Drone Uses FMCW Radar and RTK GPS for High-Resolution SAR Imaging and Ground Mapping This DIY drone is doing something much more than taking aerial photos. It uses a custom FMCW radar to create detailed images of the ground from the air.This is built by Henrik Forstén.The system sends radio signals toward the ground and measures the signals that bounce back. As the drone flies, it collects thousands of these measurements and combines them using Synthetic Aperture Radar (SAR)… |
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Ball-Balancing Robot Uses a Mirror to Stay Compact; Pi Handles Vision, Leaves Motor Step Timing to 3 RP2040 Chips MirrorBallBot, an open-source ball-balancing robot from a maker using the GitHub handle AndreaFavero71, looks at its platform through a mirror rather than from above. The camera sits to the side and points at a mirror inclined at 27 degrees beneath the platform. The author says that, for the same camera and robot height, this widens the field of view by 58%, which allows a larger platform… |
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This ESP32-P4 Turns a DJ Controller Into a Laptop-Free DJ System With Two Music Decks and Audio Mixing A maker has built a standalone DJ system using the ESP32-P4, allowing a Pioneer DDJ-FLX4 DJ controller to work without a laptop running DJ software. The open-source Pajoniiir project uses a Guition JC4880P443C_I_W board with an ESP32-P4 and 4.3-inch touchscreen. It reads music from a USB drive exported from Rekordbox and supports MP3, WAV and FLAC files. The system can run two DJ decks at the… |
