EK-TM4C123GXL Tiva C LaunchPad
An 80 MHz Arm Cortex-M4F LaunchPad built around the TM4C123GH6PM, with USB device and host support plus BoosterPack headers.
Manufacturer library
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 80 MHz Arm Cortex-M4F LaunchPad built around the TM4C123GH6PM, with USB device and host support plus BoosterPack headers.
An 80 MHz Arm Cortex-M0+ development kit for the MSPM0G3507 with on-board debug, sensors and high speed ADC demonstration circuitry.
A sub-1 GHz SimpleLink wireless MCU development kit built around the CC1310 for low power sensing and long range radio designs.
A multi-band SimpleLink development kit for the CC1352P wireless MCU, including sub-1 GHz and 2.4 GHz radios with an integrated power amplifier.
An STM32 Nucleo-64 board based on the STM32F401RE, with an integrated ST-LINK debugger and Arduino Uno compatible expansion headers.
An STM32F407 discovery board with audio, motion sensing, USB OTG and an integrated ST-LINK debugger for Cortex-M4 development.
The original RP2040 microcontroller board, with castellated edges, USB and exposed debug pins in a compact dual-inline format.

by GEIGEIGEIST
TOTEM is a 38 keys column-staggered split keyboard. It meant to be used with a SEEED XIAO BLE or RP2040

by GEIGEIGEIST
KLOR is 36-42 keys column-staggered split keyboard. It supports a per key RGB matrix, encoders, OLED displays, haptic feedback, audio, a Pixart Paw3204 trackball and four different layouts, through brake off parts.
by samyk
KeySweeper is a stealthy Arduino-based device, camouflaged as a functioning USB wall charger, that wirelessly and passively sniffs, decrypts, logs and reports back (over GSM) all keystrokes from any Microsoft wireless keyboard in the vicinity.

by wagiminator
T12 Quick Heating Soldering Station
by evanman83
Step-by-step instructions to build a smartphone that is open-source, upgradeable, repairable, and Big Tech free.

by 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.

by Hanqaqa
Easily dive into different PCB KiCad designs of the most popular microcontroller devboards

by aderusha
LCD touchscreen for Home Automation

by cardonabits
Haxophone, an electronic musical instrument that resembles a saxophone

by Neumi
Open Source, easy to use Ethernet connected stepper motor controller. Built in FreeCAD, KiCAD and Arduino.
by strangeparts
Flexible circuit board design for adding a headphone jack to an iPhone 7

by Chrismettal
Backpack-style addon boards for the Flipper Zero!

by OpenDrone-hw
OpenRX open-source ExpressLRS receiver family hub; board sources live in four dedicated hardware repositories.

by peej
5x12 ortholinear through-hole component keyboard PCB for standard 60% cases
by ZakKemble
N|Watch - DIY Digital Wristwatch
by HubertD
stm32f0 usb can adapter (KiCAD)

by soundmonster
Generated keyboard

by agamrossen
Open-source acoustic drone detection. It hears the propellers, not the radio, so it works against fibre-optic FPV aircraft that emit no signal at all.
by KCORES
OCP Mezzanine card V2.0 to standard PCIe slot adapter design

by FPGAwars
:star2: IceZUM Alhambra: an Arduino-like Open FPGA electronic board
by DiatomStudio
Piccolo is a pocket-sized stand-alone CNC platform.

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 LibreSolar
16s / 100A Battery Management System

by Envious-Data
A custom mechanical keyboard inspired by the CFTKB Mysterium utilizing the Raspberry Pi Pico

by mecparts
An ESP8266 based RS232 <-> WiFi modem with Hayes AT style commands and LED indicators

by pachterlab
poseidon system - open source syringe pumps and microscope for laboratories

by tjko
Fanpico: Open Source Programmable PWM (PC) Fan Controller

by SdtElectronics
Evaluation board for AllWinner's RISC-V 64 SoC F133/D1s

by staticintlucas
A small, thin, USB-C, Pro Micro compatible microcontroller
by botletics
Arduino-compatible wireless reflow oven controller ecosystem of open-source hardware

by zapta
An Arduino based LINBUS stack and signal interceptor/injector.

by ChrisChrisLoLo
4x10 ortholinear with an LCD in the middle. Uses the Raspberry Pi Pico, as well as Rust firmware

by murexrobotics
Highly integrated electronics design and printed circuit boards (PCBs) for the MATE ROV Competition. Attempt the impossible.
by Ttl
Hardware and software files for custom AT91SAM9N12 Linux board

by wagiminator
USB Power Delivery Testing Device and Variable Power Supply

by jkramarz
The Tick is the next evolution in covert access control system implants for simulating adversary-in-the-middle attacks.

by 8n1
Battery powered door and window sensor with ultra low standby power. Arduino, ESP-12, Reed switch, ATtiny, LDO

by tjclement
Custom hardware designs for a super tiny $5 WiFi (RGB enabled) LED dimmer module based on the ESP8266

by Hydra-Designs
A minimalist 1W LoRA PCB design for Meshtastic-device firmware
by Schluggi
ESPHome based all-in-one sensor

by Jana-Marie
stm32f072 dev board with arduino nano alike pinout
by ConnyCola
Schemetics and Code for a DIY weller soldering station

by ebastler
A wireless ergonomic keyboard
by Pwdr
A powder substrate rapid prototyping machine

by camrbuss
Super thin split PCB keyboard using rp2040 chips running Rust
by gsuberland
Script for extracting stackup templates from JLCPCB and turning them into Altium and KiCAD stackup files

by tebl
A PCB being made while watching Ben Eaters "Build a 6502 computer" video series. Includes the computer itself, a standalone slow clock and an Arduino Mega shield for the bus monitor sketch..
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.