PicoCray: 9 Raspberry Pi pico RP2040 for parallel computing

The PicoCray project connects multiple Raspberry Pi Pico microcontroller modules into a parallel architecture, utilizing the I2C bus to communicate between nodes

Schematic PCB

120-channel logic analyzer based on Raspberry Pi Pico

The Raspberry Pi microcontroller 24-channel 100Msps logic analyzer has been upgraded to support 120 channels.
Daisy chaining of five devices is supported, allowing capture of 120 channels. Includes performance improvements and visibility improvements to the rendering engine, more samples in the screen, automatic selection of capture modes, editing capabilities, and more. The playability is getting higher and higher.

Schematic PCB

3-phase AC 400V input PFC converter

This reference design provides design guidance, data and other content for a 4kW 3-phase AC 400V input PFC converter using a 3-phase totem pole topology and 1200V SiC MOSFETs.

Schematic PCB

1kW Full-Bridge DC-DC Converter

This reference design provides design guidelines, data, and more for a 1kW server power supply using a phase-shifted full-bridge DC-DC converter.

Schematic PCB

5kW Isolated Bidirectional DC-DC Converter

This reference design provides design guidelines, data and other content for a 5kW isolated bidirectional DC-DC converter using a 1200V SiC MOSFET dual active bridge (DAB) conversion method.

Schematic PCB

500W server power supply using TOLL package DTMOS

This reference design provides design guidelines, data, and other content for a 500W server power supply using continuous current mode PFC and LLC DC-DC converter. Using TOLL packaged MOSFETs in the PFC circuit reduces the overall size and increases power density.

Schematic PCB

Non-isolated step-down DC-DC converter

This reference design provides design guidance, data, and other content for multiple non-isolated step-down DC-DC converter power supplies. A variety of power supplies are optimized for a variety of outputs, loads, and board mounting areas.

Schematic PCB

200W Active Clamp Forward DC-DC Converter

This reference design provides design guidance, data, and other content for a 200W active-clamp forward DC-DC converter using N-channel MOSFETs as clamp switches.

Schematic PCB

100W LLC DC-DC Converter

This reference design provides design guidelines, data, and more for a 100W LLC DC-DC converter using LLC resonance to achieve zero voltage switching.

Schematic PCB

1.6kW T-type three-level PFC power supply

This reference design provides design guidelines, data, and more for a 1.6kW AC-DC converter power supply using a T-type three-level power factor correction (PFC) circuit.

Schematic PCB

Application circuit of low-power operational amplifier TC75S102F

Application circuit of low-power operational amplifier TC75S102F suitable for various sensors. These application circuits can be used in devices requiring long battery life, IoT sensors, energy harvesting systems, and more.

Schematic PCB

ESP32+RP2040 two-in-one design board (schematic and PCB)

Schematic PCB

Using Raspberry Pi Pico, a miniature Mars probe with an arm (schematic, PCB, 3D printing, source code, etc.)

Schematic PCB

Open source plankton monitoring and analysis equipment PlanktoScope

Plankton help remediate 30-50% of the world's carbon dioxide and provide the foundation for the global food chain, making up the world's largest daily movement of biomass as it travels across the ocean. The shapes, colors, and movements of these billions of creatures are as vast as the oceans that sustain them. Understanding plankton is crucial to understanding the world around us and our impact on it.

One obstacle to this type of research is the sheer size of the area to be explored, as well as limited resources for research fleets and specialized equipment. By developing a method to scale up high-quality visual exploration and documentation, we can greatly increase our understanding of the complex web of life around us, and how we in turn influence it.

Schematic PCB

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.

Schematic PCB

Open source microcontroller 3D game graphics engine Pico3D

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

Schematic PCB

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.

Schematic PCB

Use waste water bottles to produce 3D printer filament recycling machine

3D printer filament can be produced from discarded water bottles, which will serve two key purposes: recycling plastic waste and producing 3D printer filament at extremely low cost.

The authors hope that as many people as possible will replicate and improve on this project. Therefore, all CAD, firmware and other resources are open source. Special consideration was also given to ensuring that all parts and tools used in the build process were easily sourced.

Schematic PCB

3D printed portable wind turbine

The wind turbine is mainly 3D printed and equipped with a BLDC motor as a generator. Foldable and no larger than 2L soda bottle. Easy to replicate and low cost to manufacture.

Schematic PCB

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