Power & batteries
Omega Dock New
by valerionew
A dock for Onion omega, omega2 and omega2+. It features: Microusb for power supply, USB host, Ethernet
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A dock for Onion omega, omega2 and omega2+. It features: Microusb for power supply, USB host, Ethernet
by Neumi
An Arduino shield to test the TMC2209 stepper motion controller by Trinamic.
by CIRCUITSTATE
Open-Source RP2040 Microcontroller Development Board
by rauli2780
Open-source drop-in PCB replacement for Google Nest Audio with Home Assistant integration
by sporniket
A conversion to Kicad EDA of the schematics of a computer released around 1989 known as the "Atari STE".
by deltabeard
Custom Raspberry Pi Compute Module (1/3) IO Board
by JohSchneider
a handheld gaming system build around the raspberry-pi zero running emulationstation
by tscircuit
Find parts from JLCPCB matching design constraints (resistance values, capacitance, tolerance etc.)
by rhaamo
Amiga 2000 revision 6.2 motherboard re-done in KiCAD. WARNING: stability issue with Wicher 500i, could be noise related from accelerator speed.
by arnarg
Backplane PCB for Terramaster F2-221, adding NVMe SSD
by UzixLS
Easy-to-build minimalistic ZX Spectrum clone
by blemasle
Connected GPS tracker PCB
by TheSlowGrowth
Alternative panels for Mutable Instruments modules
by ISSUIUC
Building custom flight computers
by festlv
Serial MAVLink <> WiFi bridge running on ESP8266
by yeokm1
Schematics of the reverse engineered Pixmob wristband used in NDP2016. Sample IR brute-force code is available but has not been fully tested in practice.
by inderpreet
A DIY version of the Google AIY kit that was distributed free with the May Issue of MagPi Magazine
by valletw
ESP32 ATX Power Controller
by ikajdan
A split keyboard with 6 by 3 column staggered keys and 3 thumb keys, based on the Crkbrd design
by ohdsp
Open Hardware DSP Platform - Class D Amplifier TDA7498, TDA7492 PCB design - Open Source Hardware - Untested
by glitchwrks
48T02 RTC/NVRAM crystal + battery replacement module
by acolomitchi
Files for the capacitive soil moisture (2 kicad projects and 1 arduino sketch with dependencies)
by SukkoPera
Open Hardware Automatic Mouse/Joystick Switcher for Amiga Computers
by cnlohr
Test link between an ESP8266 and a base station or another ESP8266 easily.
by cwgstreet
ESP32 wifi enabled quad temperature probe device to monitor bbq meat / pit temperatures with wireless cloud data logging for remote monitoring and push alert notifications
by RobertPHeller
A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
by stanleyondrus
reTerminalEM is an open-source expansion module platform for reTerminal's high speed interface (PCIe X2, USB 2.0, POE, 2x I2C, 2x SPI, UART, and 11 GPIOs).
by Stulinaz
Firmware and Kicad project for my USB to UART/I2C/SPI converter
by DIYSynthMNL
A multi saturation module with voltage controlled wet/dry mix
by Swyter
An experimental PC adapter for EPCOT —the PlayStation®VR2 headset— that splits USB Type-C® into DisplayPort video, USB 3 data and power. Intercepting its DP-AUX/SBU and CC side channels.
by robertklee
Audio Effects Circuit Design & Embedded Systems (STM32F407 microcontroller) Design Project. Goal: with an analog audio input, pitch shift or add echo effect and output to a speaker. Circuit: designed AC level shifting circuit, active bandpass filter, LED matrix display and DAC quantization error smoothing in KiCad; manufactured as a printed circuit board; soldered components and tested PCB. Embedded Systems: FFT to extract frequency domain; NVIC with timer-raised interrupts to service analog sampling, button debouncing, and image display on LED matrix; memory and clock cycle optimizations
by tomtor
STM32 and AVR128 Printed Circuit Board for creating IOT nodes with the RFM95 LORA chip
by StarGate01
Firmware and Hardware for a Half-Life: Alyx Gravity Glove Replica
by DAI-Maker-Lab
An open source sonar stream gauge designed to give early warning of flood conditions to residents in vulnerable areas.
by ohdsp
Open Hardware DSP Platform - XMOS xCORE200 Platform based DSP and microcontroller PCB design - open source hardware - untested
by sufst
Monorepo for all schematics and PCB designs
by TG9541
A narrow KiCad made PCB with STM8S001J3, RS485 driver and DS1621S Thermometer, e.g., for STM8EF-MODBUS
by dj505
A compact keyboard-style controller for Pump it Up
by transistorfet
A collection of VME-based hardware and software for modular computers
by KabukiFlux
JAMMA Xbox360 wired controller for RGBUNTU/PI cheap
by Kampi
Zigbee environment sensor device with Zigbee2MQTT support.
by Open-Muscle
60-sensor wearable with flexible PCB and pressure matrix
by jyap808
58-key column staggered split keyboard
by PatrickBaus
Keithley 2000-SCAN solid-state relay replacement
by hanya
Tool to draw electrostatic capacitive pad on KiCAD
by steelpuxnastik
DIY-friendly photointerrupter microswitch/lamp holder 2-in-1 for generic 100mm Chinese arcade buttons. Enables an OBSA-LHSXF+OBSA-100UMQ-like setup at low cost with generic parts.
by OpenDrone-hw
Open-source FPV video transmitter hardware. Part of the OpenDrone ecosystem.
by r-pv
An ST development board based on the STM32F030C8T6 MCU compatible with STM32Duino (Arduino).
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.