Desktop pen holder and calendar made with raspberry pi pico

In theory, it could connect to Google Calendar and show today's events while still being ongoing. Also on the list of features to be implemented is a switch or sensor that changes mode when the pen is removed, and buttons or touch controls for the user interface.

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Open source microcontroller 3D game graphics engine Pico3D

The current demonstration is running on RP2040, using one of the M0 cores as the GPU.

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High resolution magnetic rotary encoder based on RP2040

This is a mature development board combined with a magnetic rotary encoder, which uses a Raspberry Pi RP2040 microcontroller with a base resolution of 36, expandable to 36,000 steps per revolution.

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Starfish: an open source project for motor control board using component pick-and-place of RP2040 and TMC2209

Starfish is a pick and place machine control board built on the Raspberry Pi RP2040 microcontroller and Trinamic TMC2209 motor driver. This control board has some similarities to a 3D printer control board, but it has some unique issues to solve—including controlling solenoids and communicating with vacuum sensors. All board information is open source, and detailed explanations are provided to help you copy successfully.

Schematic PCB

Raspberry Pi microcontroller 100Msps dual-channel oscilloscope software and hardware are fully open source, including detailed instructions

The current design solution uses an 8-bit ADC chip ADC08100 and a 100M bandwidth front-end analog circuit. In fact, if you want to play, you can improve the indicators and use AD9288 or the domestic alternative MXT2088. One chip has two channels and achieves a 250M sampling rate through rapid alternating sampling.

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SpaceX Starlink user terminal modification

Author Lennert Wouters demonstrated how to execute arbitrary code on Starlink user terminals via a custom modchip injected with voltage faults, and notified Starlink of these vulnerabilities.
Although the details are open source, the author does not sell the finished product, nor does he provide details of the modified endpoint firmware and fault injection used in the attack.
The transformation is to use a Raspberry Pi microcontroller

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ReflowMaster: open source reflow master control based on the magic oven (schematic, PCB, gerber, source code, etc.)

Reflow Master Pro is designed to work in any oven - no algorithm adjustments required! That said, if you really want to tweak, you can switch from the classic Reflow Master algorithm to PID control and adjust your settings to your liking.

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E-books based on Raspberry Pi microcontroller

This time it’s an e-book based on the Raspberry Pi.

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Based on ST ST25RU3993 unmanned convenience store ultra-high frequency UHF RFID reader solution

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20 ink screen daisy chain gameplay

Created a daisy chain through the serial port

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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.

Schematic PCB

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.

Schematic PCB

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.

Schematic PCB