STMicroelectronicsOfficial resources
NUCLEO-F401RE
An STM32 Nucleo-64 board based on the STM32F401RE, with an integrated ST-LINK debugger and Arduino Uno compatible expansion headers.
STM32F401RE
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Download ProtoFlow287 published boards whose schematic and layout source is public — KiCad, EAGLE, Altium and EasyEDA projects you can read, fork and build on. Every entry links to the original repository and names its licence.
Exact board pages for widely used TI, ST, Espressif, Arduino, Raspberry Pi and Nordic hardware, linked to the manufacturer’s schematics and design resources.
An STM32 Nucleo-64 board based on the STM32F401RE, with an integrated ST-LINK debugger and Arduino Uno compatible expansion headers.
The RP2350-based successor to Pico, retaining the familiar form factor while adding more performance, memory and security features.
A multi-protocol nRF52840 development kit for Bluetooth Low Energy, Matter, Thread, Zigbee, NFC and proprietary 2.4 GHz designs.
KiCad sourceby byrantech
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
by GEIGEIGEIST
TOTEM is a 38 keys column-staggered split keyboard. It meant to be used with a SEEED XIAO BLE or RP2040
by tompi
An affordable split 36 keys keyboard
by evanman83
Step-by-step instructions to build a smartphone that is open-source, upgradeable, repairable, and Big Tech free.
KiCad sourceby beekeeb
The Piantor Keyboard is a beginner-friendly, easy-to-solder, 42-key or 36-key, diodeless, low profile aggressive column staggered, hotswappable and non-hotswappable, programmable ergonomic mechanical split keyboard powered by Raspberry Pi Pico or other compatible RP2040 boards. It is based on the Cantor Keyboard.
KiCad sourceby cardonabits
Haxophone, an electronic musical instrument that resembles a saxophone
by Wren6991
Portable games console, designed from scratch: CPU, graphics, PCB, and the kitchen sink
by strangeparts
Flexible circuit board design for adding a headphone jack to an iPhone 7
by ExpressLRS
Open-source PCB designs, schematics, and 3D-printable cases for ExpressLRS TX modules and receivers
by ZakKemble
N|Watch - DIY Digital Wristwatch
by OpenGammaProject
☢️👁️ Hardware for a hackable DIY gamma-ray spectrometer using a popular NaI(Tl) scintillator, SiPM and a Raspberry Pi Pico.
by cheyao
A low-cost H3 single-board computer capable of running Linux with DDR3
by jibrilsharafi
Smart energy meter capable of monitoring up to 16 channels. Supports MQTT, REST API, Modbus TCP, InfluxDB, AWS IoT Core. Friendly UI and fully open source (PCB, schematics, components, source code)
by SMotlaq
An open-source handmade smartwatch. All of the codes, PCBs and schematics are available. ⌚
KiCad sourceby Junkz3
A senior microsoldering technician, available to every repair shop from the seasoned pro to the apprentice. Powered by Claude Opus 5
by tjko
Fanpico: Open Source Programmable PWM (PC) Fan Controller
KiCad sourceby LibreSolar
Hackable and open source MPPT solar charge controller
KiCad sourceby staticintlucas
A small, thin, USB-C, Pro Micro compatible microcontroller
by botletics
Arduino-compatible wireless reflow oven controller ecosystem of open-source hardware
KiCad sourceby adamjvr
Footprints for the Espressif ESP32 WiFi/BLE Chip and ESP3212 module, for KiCAD EDA
KiCad sourceby murexrobotics
Highly integrated electronics design and printed circuit boards (PCBs) for the MATE ROV Competition. Attempt the impossible.
by wagiminator
USB Power Delivery Testing Device and Variable Power Supply
by Szybet
A modular, hackable, improved watchy like watch
KiCad sourceby Redherring32
An open-source portable handheld NES using real hardware
EAGLE sourceby tjclement
Custom hardware designs for a super tiny $5 WiFi (RGB enabled) LED dimmer module based on the ESP8266
by OpenBionics
Affordable (< 100$), light-weight (< 200 gr), adaptive, underactuated robot hands
by LouWii
Custom ergo split keyboard project, based on ErgoDox, with hot swap sockets
by hsiang-lee
A lightweight pure C++ library for parsing and rendering RS-274X Gerber files, powered by Blend2D. Runs headless, exports PNG via gerber2image. Dependencies managed with vcpkg.
KiCad sourceby sszczep
Cherry MX Breakout Boards with reverse-mounted addressable RGB LED and hot-swap.
by flatCat1597
ramanPi - the DIY 3D Printable Raman Spectrometer
KiCad sourceby UzixLS
Tiny IBM PC compatible machine with 386 CPU, integrated VGA and sound.
EAGLE sourceby alwynallan
Open RNG based on Modular Entropy Multiplication
KiCad sourceby Fescron
20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button. (Info about about J-Link Commander and Segger RTT is also given.)
KiCad sourceby 30350n
PCB panels for Mutable Instruments eurorack modules
KiCad sourceby 10x-Aero
A 6S AM32-compatible ESC built as a proof of concept for learning how to design an ESC from scratch
KiCad sourceby buganini
KiCad Workspace / Panelizer / Build Variants / Differ / FreeCAD Bridge for PCB Bending & Assembly
EAGLE sourceby mattb
An opamp board to scale Eurorack control voltages into and out of ranges compatible with a Teensy MCU board
by CalPlug
ADE 7953 Arduino style library (Espressif ESP8266 and ESP32 compatible) and demo board PCB design
KiCad sourceby siderakb
Pro Micro/Elite-Pi compatible RP2040 board with USB-C, 8MB flash and up to 25 GPIOs
by tinkrmind
A hardware kit to experiment with inflatable and vacuum based soft robotics.
by I-M-Robotics-Lab
Quadcopter design based on STM32F411CEU Blackpill flight controller. Compatible with INAV 6.0 firmware.
by caiannello
Javascript app to process a PCB image and output G-code suitable for laser engraver or similar machine. To reduce tool time, by default, the board traces are Voronoi Tesselated, though this is optional.
by mazls
Epoxy coffe table with 3d printed hexagon inserts and led pcbs with touch sensor
by MUTEtheCyberwolf
Valve Index DEV Frunk 1.0 Custom made to give the Index more Mounting Options for Adapters and DIY Devices. All Modifications that i create are Reversible and will not damage the Product. (Except you try to break it on purpose)
by ChrisChrisLoLo
A pocket keyboard that uses SMD mouse switches. Low profile and easy to assemble
by hkzlab
Sound Card for the ISA (8bit) bus sporting Sound Blaster / Sound Blaster PRO emulation via ES688F chip, and a real Yamaha OPL3 FM Synth. It's also completely jumper configurable.
KiCad sourceby martinribelotta
STM32H7 Arduino form factor and software compatible board
by vonkonow
Leet AI – Wireless Synthesizer Ensemble with AI-powered composition for endless inspiration
Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.