Dreamweaver 4N: Four-note sequencer (PCB, schematic, source code, etc.) for creating unique music in real time

Dreamweaver 4N is a four-note sequencer with potentiometers, allowing users to create their own unique music.

Schematic PCB

The Skull CTF: Guessing Skull Game Tool

The Skull is a Capture the Flag (CTF) puzzle that invites you to explore the innards of the AVR architecture. It has multiple stages that may keep you busy for days or even weeks as you flex your brain muscles and apply them to her riddles. Unless, of course, your mind loses its grip on reality and you fall into a swirling void of madness with no anchor. In this case, it may take you longer. To keep your head above water, you need three things: the ability to read and understand Arduino code, a willingness to spend some time reading the ATtiny45 datasheet, and basic programming skills.

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USB Armory Mk II: Small Open Source USB Computer for Security Applications

The USB armory Mk II is a full-featured computer (900 MHz ARM® processor, 512 MB RAM, Bluetooth, USB-C) in a small form factor, designed from the ground up with information security applications in mind.

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Inkplate 10: Low-power, easy-to-program, open-hardware e-paper display with Wi-Fi support and 9.7-inch screen

Inkplate 10 is a powerful, energy-efficient, Wi-Fi-enabled ESP32 development board with a recyclable 9.7-inch e-paper display. It's open hardware supported by open source software libraries, and it's easy to program whether you prefer MicroPython or the Arduino IDE.

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Ant2 LiPo Charger: The smallest USB Type-C LiPo charger

The Ant2 is a tiny USB-C lithium polymer charger that measures just 16 x 9mm, just larger than the USB Type-C connector itself. It is the smallest charger in its class. Ant2 can be used to add USB-C power and battery charging support to space-constrained prototypes and projects. The small size also makes it easier to retrofit USB-C power into your old projects.

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StereoPi v2: Open source stereo camera based on Raspberry Pi with Wi-Fi, Bluetooth and advanced power supply system (schematic, etc.)

StereoPi is an open source stereo camera based on Raspberry Pi. It can capture, save, live stream and process real-time stereoscopic video and images. StereoPi opens up countless possibilities in robotics, AR/VR, computer vision, drone instrumentation, panoramic video, and more.

Schematic PCB

PowerEver: the tiny device that turns your universal power bank into an uninterruptible power supply

PowerEver is a tiny electronic board that keeps your commercial power bank running uninterrupted while minimizing self-leakage current. It is user-adjustable and compatible with almost all power banks on the market. This means your power bank will never be short of power bank for your electronics.

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SmartLED Shield for Teensy 4: Drive high-quality graphics to your HUB75 RGB matrix panel with Teensy4

Want to add lots of LEDs to your Arduino project? HUB75 RGB panels are a great way to do this as they are much cheaper than addressable Neopixel/WS2812 LEDs (typically 10% of the cost per LED). They are also available in a range of pixel densities (from 2mm to 10mm pitch) to better suit your project needs. However, using a microcontroller to display high-quality graphics on a HUB75 panel is complicated because the panel requires precise timing and constant refreshing of pixel data. That's where Teensy 4's SmartLED Shield comes in.

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Gameduino 3X Dazzler: Arduino expansion board for gaming and audiovisuals with GPU, FPGA, HDMI and Python support

The Gameduino 3X Dazzler is an Arduino-compatible expansion board that outputs high-definition images and sound to any HDMI monitor or TV. Dazzler is great for game designers using Arduino or CircuitPython, makers who want rich, responsive data and text visualizations, and anyone who wants great visuals for their Arduino projects.

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Data Fitness Connector (DFC): Allows Peloton bikes to communicate with fitness watches and other connectors (schematic, source code, PCB, etc.)

Data Fitness Connector (DFC) A data broadcaster is a device that allows Peloton bikes to communicate with fitness watches, head units, and apps, a feature not available on stock Peloton bikes. It reads power and cadence data in real time via a cable connected to the bike and broadcasts them wirelessly to nearby devices, including those built around non-Peloton platforms like Zwift and Garmin (see which products are supported). This allows you to enjoy the built-in features of your bike while taking advantage of features and services that rely on third-party platforms.

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PiMod Zero: Transform old TVs into RF video modulators based on Raspberry Pi Zero (schematic, source code, PCB, etc.)

PiMod Zero brings old technology back to life by allowing the Raspberry Pi Zero to display color or black-and-white video and play audio on vintage TV sets. It provides a super compact way to watch old movies, play retro games, display digital art or browse using any TV operating system that receives standard NTSC broadcasts on VHF channels 2 and 3 (55.25 MHz and 61.25 MHz).

Schematic PCB

ANAVI Macro Pad 2: Open Source Programmable Two-Button Mechanical Keyboard with Backlight

Every key on the ANAVI Macro Pad 2 can be reprogrammed to be used as a macro or even as a dedicated shortcut key, making it ideal for many applications in a variety of industries.

Schematic PCB

Stereo Mic and Speaker HAT: A practical, colorful plug-and-play audio HAT for the Raspberry Pi

Stereo Mic and Speaker HAT is an audio HAT for the Raspberry Pi board with dual speakers and microphones for stereo audio playback and recording. HAT does not need to be installed as the onboard EEPROM dynamically loads device tree overlays. First, all you need to do is plug in the HAT and boot up the Pi. Make sure not to plug or unplug the HAT while the Pi is powered on and running, but really, it's that simple! By default the amplifier gain is +9dB, but the amplifier gain can be changed via the onboard pads by adding a small amount of solder. The compact HAT measures 65mmx30mm, which is the same size as the Pi Zero, Adafruit's bonnet HAT and Pimoroni's pHAT, making it easy to use the HAT for a variety of projects.

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Inkplate 6PLUS: Versatile, easy-to-use, Wi-Fi enabled 6-inch e-paper display with touchscreen and front light

Inkplate 6PLUS is a powerful, energy-efficient, Wi-Fi-enabled ESP32 development board with a recyclable 6.0-inch e-paper display equipped with touch screen and headlight. It's part of the Inkplate family of open hardware powered by open source software libraries, making it the easiest electronic cardboard to use, whether you prefer the Arduino IDE or MicroPython.

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Steno-Flex: An innovative, cheap, customizable shorthand

Steno-Flex is a unique, low-cost stenotype that matches standard stenotype layouts and key actions. By using flexible keys with touch sensors, Steno-Flex is able to simplify the stenotype's design and mechanics, making Steno-Flex lighter and less expensive than current stenotypes on the market. Steno-Flex uses modern materials and electronic equipment, combined with computers, to allow students and novices to develop shorthand skills. Just plug the USB cable into your computer, launch the open source shorthand software Plover, and you're ready to go. Provides online tutorials and guides. Steno-Flex is an effective device for people who want to learn shorthand and develop real-time speech transcription. Shorthand technology is evolving to become the standard solution for data entry, from simple keyboards to sophisticated shorthand controls.

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EyeCloudAI CDK: Open edge AI camera kit compatible with OpenVINO and based on Intel Myriad X

EyeCloudAI CDK is an open source edge AI camera development kit for applications where privacy, real-time performance, reliability and flexibility are critical. Developing and deploying custom edge AI camera solutions becomes easy with this camera development kit (CDK). We've taken care of AI optimization, sensor tuning, optics, tooling and supply chain management so you can focus on your application.

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PICO DSP: an open source, Arduino-compatible, ESP32-based audio development board

PICO DSP is an open source, Arduino-compatible ESP32 development board for audio and digital signal processing (DSP) applications. It provides an extensive audio processing feature set in a small, breadboard-friendly device, providing audio input, audio output, a low-noise microphone array, integrated test speaker options, additional memory, battery charge management and ESD protection all on a single micro PCB superior.

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GoWired Multiprotocol Gateway: The versatile hub for all wired communications

The GoWired Multi-Protocol Gateway is an evolution of one of our previous development boards, the GetWired Ethernet Gateway, with more power, more features, more functionality and a better solution for wired automation systems. It features a powerful ARM M0+ microcontroller with 8x the ROM and 16x the RAM memory. We doubled the RS485 transceiver to be able to use two different communication protocols simultaneously (MySensors, MODBUS, etc.) and added a CAN transceiver as it is also widely used in home automation. USB obviously has to be included as well. To ensure reliable Ethernet communication, we use the market-leading Wiznet W5500 chip. The microcontroller internal memory can be expanded via SD card, for example. G. Used to collect debugging information. The GoWired multi-protocol gateway also features improved power circuitry and can now handle a voltage range of 7-26 VDC. Onboard current and power monitors can periodically share power-related data, as well as other information about device status. For example, an e-ink screen can be used to display this information. All of this is designed with reliability and safety in mind, especially in terms of power supply (ESD, overcurrent, overvoltage, reverse polarity protection) and EMC and EMI precautions. The device is housed in a compact four-slot DIN rail enclosure.

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SlimeVR Full-Body Tracker: An affordable, comfortable, wireless, 360° virtual reality full-body tracking solution

SlimeVR is a set of open hardware sensors and open source software that facilitates full-body tracking (FBT) in virtual reality. Without the need for a base station, SlimeVR makes wireless VR FBT affordable and comfortable. SlimeVR FBT provides simple, effective body and limb tracking in VR games and other applications. It utilizes high-quality inertial measurement unit (IMU) sensors and a Wi-Fi connection to a PC instead of wires, cameras or base stations to make full-body tracking comfortable and affordable. Take the lower-body suit, for example, where five trackers—one on each thigh, one on each ankle, and one on the waist—are enough to get the job done. Each tracker monitors its own rotation in space, and the SlimeVR software uses your scale and headset position to calculate joint angles and estimate limb position. In more technical terms, SlimeVR relies on absolute orientation sensors, a configurable skeleton model, and forward kinematics. The result is like having virtual Vive trackers installed at strategic locations on your body.

Schematic PCB

Chhavi: ESP32 based fingerprint sensor with optional NFC (source code, etc.)

Chhavi is a tiny, wireless, touch capacitive fingerprint sensor with high-end security features, support for ultra-low power operation and optional NFC connectivity. Its open source firmware is fully compatible with the Arduino IDE. Chhavi is powered by ESP32 and features an FPC BM-Lite fingerprint sensor by Fingerprints, giving you and your projects access to the excellent biometric hardware found in many smartphones. Unlike optical fingerprint sensors that are large and power-hungry, this capacitive biometric sensor is small, accurate, and energy-efficient. During our design process, we determined that NFC communication would be a powerful feature for many of the same applications that might require a high-quality fingerprint sensor, but we could not find a major ESP32-driven NFC controller. So we built one into Chhavi as an optional feature. We've also added an optional battery to simplify installation and facilitate mobile deployment. The result is a tiny device with a cutting-edge fingerprint reader, Wi-Fi and Bluetooth capabilities, as well as support for NFC and battery power when needed.

Schematic PCB