EtherCAT communication development platform based on ARM processor-schematic diagram

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ZTE 2400-48V50A communication power supply schematic diagram

ZTE 2400 48v50a circuit schematic diagram, available for maintenance

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21-channel 120Msps Raspberry Pi microcontroller logic analyzer

Using Raspberry Pi pico (rp2040) as logic analyzer and oscilloscope with sigrok

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Implementing ultra-low-cost dual fiber optic network card 100BASE-FX based on Raspberry Pi microcontroller (open source software and hardware)

The Raspberry Pi microcontroller itself does not have an Ethernet MAC, but it can be easily implemented through the programmable IO of the Raspberry Pi. The programmable PIO of the Raspberry Pi microcontroller that costs 5 yuan a piece is indeed a miracle, with IO below 250MHz. Control everything.

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Tah: Arduino-compatible BLE platform, which can be used as beacons, microcontrollers and HID devices (including schematics, source code, etc.)

Tah - Control anything from your smartphone, open source, Arduino-compatible Bluetooth Low Energy (BLE) platform that can be used as a beacon, microcontroller, and HID device.

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Idiotware Shield: Adapted to Arduino, a simple and fast IoT learning platform (including schematics, PCB, source code, etc.)

Idiotware Shield is a learning platform that can quickly implement hundreds of Arduino projects, whether you are a novice or an expert. The Idiotware Shield is the Swiss Army Knife of Arduino shields, with a host of integrated inputs and outputs and options for connectivity and expansion.

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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

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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.

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ERASynth Micro: USB-powered, low-cost, open-source RF signal generator

ERASynth Micro is an open source signal generator with impressive features. Affordable for everyone including builders, hackers, students, amateur radio and SDR users. The ERASynth Micro is powered via the USB port and has an LCD interface for stand-alone use without the need for a computer or phone. It can generate low phase noise RF signals from 12.5 MHz to 6.4 GHz through a dual PLL architecture.

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Lite3DP 3D Printer: Arduino-based open source MSLA / LCD-SLA resin micro 3D printer kit (schematic, PCB, source code, etc.)

Lite3DP is a micro 3D printer that uses high print quality, virtually silent MSLA technology. It is the first of its kind to be completely Arduino-based, is open source, and comes in an easy-to-assemble kit format. It is a simple machine designed for experimentation to provide an in-depth and complete understanding of its operation. It can be placed on almost any table or in any workshop. MSLA resin 3D printing technology can achieve stunning levels of detail and surface finishes that are far superior to what can be achieved with filament 3D printers – primarily by using screen-cured resins such as LCDs on Lite3DP. Although 3D printers with MSLA technology are already available at similar prices to filament printers, they are closed-source projects that eschew one of the most valuable features of modern 3D printing - accessibility.

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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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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.

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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.

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NeuroStimDuino: an open source neurostimulator for students, researchers, and enthusiasts interested in neuroscience

Neurostimulation involves the application of short electrical pulses to the surface of the skin to stimulate underlying nerves and muscles. In recent decades, neurostimulation has been used as part of functional electrical stimulation (FES) therapy to help restore movement to muscles in paralyzed limbs in stroke patients and people with spinal cord injuries. While conducting research in areas such as pain relief and sensory feedback, scientists also use neurostimulation to study the effects of electrical current on neurons. Historically, the delivery of neurostimulation has required the purchase of expensive research-grade equipment or costly, time-consuming custom hardware constructs. NeuroStimDuino provides an open source alternative in the form of an Arduino shield.

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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).

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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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ANAVI Gardening uHAT: open source smart gardening based on Raspberry Pi

ANAVI Gardening uHAT is a low-cost, open-source Raspberry Pi add-on board that helps you develop smart solutions for monitoring and growing plants. ANAVI Gardening uHAT supports multiple sensors for soil moisture, temperature, humidity, air pressure and light. Getting started is easy: Just plug it into your Raspberry Pi with your bare hands and follow the instructions in the user manual. No welding required and no tools required.

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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.

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Mico: Open source, high-quality PDM to USB microphone based on Raspberry Pi RP2040 chip

Mico is a high-quality PDM to USB audio microphone based on the Raspberry Pi RP2040 chip. Most compact microphones available for embedded Linux systems such as the Raspberry Pi have high noise and low sensitivity. By pairing a high-quality PDM microphone with a standard USB audio output, Mico gives you an audio input platform that you can tailor to your needs. Mico is a great platform to learn and experiment with the RP2040 and digital audio. It can be used as a universal USB microphone for a Raspberry Pi, desktop or laptop computer. Mico can also be used as a high-quality USB audio input for embedded machine learning applications. Additionally, because TinyML supports RP2040, Mico can be used as a standalone edge computing audio device.

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PlainDAQ: Simple open source DAQ module for Raspberry Pi Pico (schematic, source code, etc.)

PlainDAQ is a simple, useful tool that adds basic precision analog functionality to your Raspberry Pi Pico board. It features a precision, low noise, low drift 12-bit 500k sps/s ADC. To match the ADC and maintain its noise and accuracy, all analog inputs are buffered and the ADC is driven by a high speed/low noise fully differential amplifier. It also has a 10-bit DAC that helps create analog outputs and waveforms.

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