• RS485 bus realizes power supply transmission scheme

    Design features: Bus power evaluation, quick and easy testing of different bus power filters, configurable module application for master or slave, DC blocking bus capacitors, onboard receiver/transmitter enable/disable pull-up/pull-down resistors

    Schematic PCB

  • Boston Dynamics Big Dog’s quadruped robot, open source BLDC motor controller MOTEUS (upgraded version, including firmware, PCB, etc.)

    Both software and hardware are fully open source. The control board is designed based on STM32G4. This upgrade adds a flexible I/O subsystem and expands the types of feedback encoders and peripherals that the controller can receive.

    Schematic PCB

  • Wigl Kit: Create your own music-loving robot (including schematics, source code, etc.)

    Wigl can hear the notes of any instrument and respond with movements, lights and special dances! Wigl helps motivate children and adults to practice their instruments. By sequencing the notes, you can program special dance moves for your Wigl. This combination of right-brain creativity and left-brain logic makes it a unique robot for any home. How does WIG work? Wigl has a microphone, a microcontroller (brain) and some motors for movement. Wigl is always listening for notes, and through some complex math it can hear individual notes.

    Schematic PCB

  • Tarocco: Open source closed-loop motor controller for non-small machines (including firmware, PCB, etc.)

    Desktop CNC machines often use stepper motors, often because they do not require position feedback sensors, thus reducing system cost. But there are situations where a position feedback sensor is needed or necessary, and the power output of a stepper motor, especially at high speeds, becomes a bottleneck for those who want a better performing machine.

    Schematic PCB

  • Programmable-Air: Portable hardware kit for experimenting with pneumatic devices

    Programmable-Air is a hardware kit that allows you to inflate and deflate objects. It has everything you need to get started with pneumatics and inflatables, including high-pressure and vacuum pumps, valves, and onboard pressure sensors. Pneumatic technology opens up a world of possibilities for manufacturers to explore: Make a vacuum placement machine Blow up a balloon so that its size represents data Make a soft robot walk Use a syringe as a linear actuator

    Schematic PCB

  • Robo HAT MM1: Open Source Robotics and Automation Controller for Raspberry Pi

    obotics Masters Robo HAT MM1 is an open source robot controller board for the Raspberry Pi. It has an education focus but is suitable for many applications. Robo HAT provides all the hardware you need in one easy-to-use form factor. It removes the initial barriers to starting any robotics project. With support for Adafruit CircuitPython, the Arduino IDE, and other libraries, Robo HAT serves as a single solution for all projects, big or small. The Robo HAT MM1 eliminates the need to purchase a large number of individual components by including them on the board. It can act as a PWM driver, provide onboard power via a voltage regulator, and measure motion using an onboard IMU - all at the same time. Broad compatibility with many open source software platforms such as CircuitPython, SeeSaw and the Arduino IDE means you can use all existing sensor software while creating your project in a way that works best for you. The hardware schematics and software are completely open source.

    Schematic PCB

  • easySwitchBox: Remote LoRa® wall switch powered by coin cell battery and Arduino IDE

    easySwitchBox does one simple thing - it sends an on/off signal to any relay, actuator or other item. It can be used to trigger any event wirelessly and over long distances (even up to several kilometers using LoRa®). Programming is easy using the Arduino IDE, and communication is protected by a certified chip. easySwitchBox not only makes your projects more efficient, but also looks more professional.

    Schematic PCB

  • STEP400: 4-axis stepper motor driver for creative encoders (schematic, PCB, source code, etc.)

    STEP400 is a stepper motor driver board that can control up to 4 axes. STEP400 elegantly combines all necessary functions, from communication to motor control, into a simple and complete package. STEP400 uses Open Sound Control (OSC) based on standard Ethernet rather than specialized industrial protocols to achieve ease of use while ensuring it is reliable enough for use in art, design or any other creative application. STEP400 can be easily controlled through creative coding environments such as openFrameworks, Processing, Max, Unity or Touch Designer. STEP400 is Arduino compatible, so you can drive the motors with your own code too.

    Schematic PCB

  • YMFC Flight Controller and Mini Drone: Open source flight controller and mini drone programmable using Arduino IDE

    The YMFC Flight Controller and Mini Drone is a simple, affordable, Arduino programmable open source circuit board that can be used as a standalone mini drone or as a flight control for a larger (F450 size) drone device. The simplicity of its design and control, as well as its open source nature, make the YMFC ideal for educational projects and drone enthusiasts.

    Schematic PCB

  • RoverWing: Adafruit Feathe expansion board that makes building complex robots easy

    The RoverWing is an expansion board (or "wing", following Adafruit's terminology) for the Adafruit Feather board that provides motor drivers that can handle 6-12 V motors, an inertial motion unit (IMU), and common servos, acoustics, etc. for mobile robots. Connectivity ports for GPS, GPS and other peripherals. Affordable, with powerful Arduino libraries and excellent documentation. It also contains a microcontroller with preloaded firmware to control these peripherals, which communicates with the Feather board using the I²C protocol, thereby freeing up the Feather board's resources for other uses.

    Schematic PCB

  • cuplTag: NFC tag that records temperature and humidity (schematic, PCB, source code, etc.)

    cuplTag is a battery-operated NFC tag that records ambient temperature and humidity. Tap it with your NFC-enabled phone and you'll see the timestamped reading appear in the web app. No configuration required, no application installation required, just one step!

    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

  • Pellicanus: an open source INS/GNSS navigation development board (schematics, software, etc.)

    Pellicanus is an open source, RP2040-based INS/GNSS module that you can program using MicroPython, C or Rust. It allows you to add Vertical Reference Units (VRU), Attitude and Heading Reference Systems (AHRS), and INS/GNSS capabilities to a variety of platforms: cars, drones, autonomous vehicles, and anything else you need to track. We'll Pellicanus is designed as a 33x30 mm toothed module that can be easily integrated into your project. We also offer carrier boards with a variety of interfaces so you can evaluate the module and start development immediately.

    Schematic PCB

  • Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

    HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

    Schematic PCB

  • Stanford Pupper: an open source quadruped robot dog

    The Stanford Pupper is a four-legged robot designed to help K-12 and undergraduate students engage in exciting robotics research.

    Schematic PCB

  • Discovery board for the ST25TV02KC NFC Forum Type 5 tag IC

    EVB-LIV3FL is a complete standalone evaluation platform for Teseo-LIV3FL low power GNSS module ST solution.

    Schematic PCB

  • ESP32-CAM-WEB camera

    Modified from the ESP32 Arduino routine "CameraWebServer" 1. Treat ESP32 as a web server. You can see the camera monitoring screen and control it through browser access. 2. Mainly change the web page from English to Chinese and delete some functions. 3. Added control functions for servos, motors, relays, and LEDs. 4. Through this program, you can easily create a wireless reconnaissance robot with ESP32.

    Schematic PCB

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