
Open source hardware
228 boardsKiCad boards from 122 GitHub repositories tagged “open-source-hardware”, the most starred first; open any of them in PCBKit.
- 2 layers50 × 90 mm

- 2 layers62 × 116.3 mm

Patternflow
engmung/Patternflow
An open-source LED synthesizer. Play light patterns with your fingertips — and every Patternflow plays every pattern we make.
9 parts352 - 4 layers50 × 87 mm

EnergyMe Home
jibrilsharafi/EnergyMe-Home
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)
87 parts288GPL-3.0 - 4 layers82.5 × 81.5 mm

- 2 layers482.5 × 711 mm

- 2 layers51.6 × 23.9 mm

Zero Palm V1
molanocortes/takto-one
Open-source hand exoskeleton that reads twelve finger joints with magnetic encoders and drives them through tendons. Full build (TAKTO ONE) or sensing-only (TAKTO Lite).
56 parts83 - 4 layers57 × 33 mm

Sensor pcb
nichlock/open-linear-scale
Open-source capacitive linear encoder / DIY DRO scale: KiCad PCBs, STM32 firmware, and test data. Same principle as digital calipers.
69 parts73 - 2 layers154.9 × 139.7 mm

68kBoard
transistorfet/computie
A collection of 68k computer projects, including a unix-like operating system written in C that runs on them
78 parts69GPL-3.0 - 2 layers31.9 × 36 mm

Lemon pcb swizzle
rianadon/Cosmos-Keyboard-PCBs
Open-Source keyboard PCB designs for the Cosmos Keyboard Generator
63 parts43 - 4 layers90.9 × 90.9 mm

Axiom micro mainboard
apertus-open-source-cinema/axiom-micro-mainboard
axiom micro mainboard containing the cmos sensor, headers for plugin modules and more
96 parts41 - 4 layers150 × 95 mm

Skysweep32 rev c
bobberdolle1/SkySweep32
Open-source passive multi-band RF monitoring system | 855–925 MHz, 2.4 GHz, 5.8 GHz | Rev C first prototype
103 parts33GPL-3.0 - 4 layers119.1 × 23 mm

PowerRiser v2.2
nandfarm/PowerRiser
PowerRiser – NVMe 2230 and 2242 Expansion board for Lenovo Tiny 5 Series
22 parts29CERN-OHL-S-2.0 - 2 layers66.1 × 33 mm

- 4 layers33 × 65.5 mm

OM FlexGrid Rigid PCB
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
65 parts19CERN-OHL-S-2.0 - 2 layers53 × 45 mm

XIAO nRF54L15 V1
hmd83/tanen
LoRaWAN beehive monitor: hive weight, temperature and battery over TTN. Seeed XIAO nRF54LM20A + SX1262, Zephyr/nRF Connect SDK. ~4 uA sleep, ~10 year life on 3X AAA cell.
19 parts17Apache-2.0 - 2 layers98.9 × 91.4 mm

Coin Cell Tester
tomrodinger/servomotor
Open-source NEMA-17 integrated servomotor (motor + closed-loop driver + controller + encoder). RS-485, Python/Arduino libraries, MCP server for AI control. Hardware, firmware and software.
204 parts17MIT - 4 layers

6-Slot Backplane
transistorfet/retroverse
A collection of VME-based hardware and software for modular computers
136 parts17 - 2 layers229.7 × 114.9 mm

- 2 layers29.2 × 20.3 mm

- 2 layers60 × 45 mm

8BitWiFiVisualizer
stasiselectronics/8BitWiFiVisualizer
Open Source Hardware project for a minimalist WiFi enabled 8 Bit visualizer. The included firmware displays the intensity of the packet stream for a particular AP channel, but feel free to remix the hardware or write…
29 parts12 - 4 layers86 × 62 mm

Pedals
janc18/CAE32
Simracing equipment, including hardware, software, and firmware design.
127 parts10GPL-3.0 - 2 layers80 × 127.7 mm

V0 3-Scale Module
MacNite/HiveHub
Open-source ESP32-C6 beehive monitoring hub for scales and sensors. Collects weight, climate, sound, vibration and bee traffic from up to 16 hives, with BLE, OTA, FastAPI/PostgreSQL backend, dashboards, MQTT and tested…
111 parts8MIT - 4 layers156.5 × 85.4 mm

P2 Kevinbot Board
meowmeowahr/KevinbotV3-KiCAD
Kevinbot Core - Parallax Propeller 2 Robot Controller
166 parts7CERN-OHL-S-2.0 - 4 layers63 × 20 mm

Twinusb.kicad
s-t-e-f-a-n/twinusb
H₂H³ | Twin USB Host Switch × Triple USB Hub (with OLED Telemetry)
120 parts7