
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 layers100 × 90 mm

- 2 layers78 × 77 mm

Luxigrid
overscore-media/luxigrid
Luxigrid is a WiFi-enabled LED matrix for your desk, compatible with an ecosystem of 25+ apps.
24 parts5MIT - 4 layers34 × 49 mm

CN105
Qeteshpony/CN105
Mitsubishi CN105 compatible heatpump controller for ESPHome and Home Assistant
33 parts5BSD-2-Clause - 2 layers145 × 65 mm

Fan test adapter
tjko/fan-test-adapter
Adapter PCB board for easily testing PC (PWM) fans.
75 parts5GPL-3.0 - 2 layers120 × 100 mm

Mowercarrier
zohebzma2-cmyk/autonomous-mower
Self-driving zero-turn mower retrofit — RTK GPS, LiDAR, cameras, on-device AI. Hardware + firmware + control software + parametric CAD.
50 parts5 - 4 layers117 × 69.4 mm

KINO D4 Carrier A0 2
b5463/kino-d4
Open-source four-lens digital camera with synchronized capture, original-frame storage, and a USB control workbench.
256 parts4 - 4 layers149.9 × 152.5 mm

TMR2615F osu pad
dubnubdubnub/Giris
open source 32 key/half (64 total) analog TMR split ortholinear keyboard w/ 8kHz USB HS
168 parts4Apache-2.0 - 6 layers330 × 200 mm

Pcb b compute
meshsat/meshsat-fieldkit
MeshSat field kit hardware: the V1 kits as built, the V2 carrier PCB set for the Peli 1450 and the compact pocket-sized node (KiCad and OpenSCAD sources, generators, release files, build guides).
957 parts4CERN-OHL-S-2.0 - 4 layers110 × 100 mm

Fidget
transistorfet/fidget
An FPGA board that can interface to the Computie expansion bus using an iCE40HX1K
99 parts4GPL-3.0 - 2 layers80.7 × 34.1 mm

5V regulated safe power supply
anujthakur512/Buck-Converter-5V
I build a Buck Converter (5V) using IC LM2596 on KiCad as my 1st project of learning PCB Designing.
16 parts3MIT - 2 layers86 × 36 mm

Vacuum Tweezers
ARENARobotics/MiniPic
Open-source benchtop vacuum tweezer engineered for SMD soldering, rework, and precision part handling
31 parts3CERN-OHL-S-2.0 - 4 layers75 × 35 mm

LASK5-V3-0
Open-Muscle/OpenMuscle-LASK5
Handheld labeler wand for training ML models on gesture inputs
56 parts3CERN-OHL-S-2.0 - 2 layers36.5 × 56 mm

ESPFanController
Qeteshpony/ESPFanController
Control and monitor up to three PWM fans with an ESP32
30 parts3BSD-2-Clause - 2 layers65.2 × 45.2 mm

STEREO AMP MODULE V1
copperWhispers/stereo-amp-module
Open-source TPA3116D2 class-D stereo amplifier. KiCad source, gerbers, BOM, and the bench measurements.
63 parts2 - 2 layers41 × 20.3 mm

Bme280
fm4dd/pmod-bme280
PMOD module for the Bosch BME280 Temperature Humidity Pressure Sensor, connection over I2C.
14 parts2 - 2 layers50 × 18 mm

Majestouch stm32
mbtech-nl/majestouch-stm32
Drop-in replacement controller for the full-size Filco Majestouch: STM32F072, QMK with NKRO over USB. KiCad 9 board, hand-solderable.
20 parts2MIT - 2 layers100 × 100 mm

Flipdot Controller
Qeteshpony/Flipdot-Controller
Replacement controller for a Lawo Luminator Flipdot Display
58 parts2BSD-2-Clause - 2 layers60 × 70 mm

Media controller
bgb-0/media-controller
Open-source USB-C media controller. RP2040, 3× MX hot-swap keys, EC11 encoder, SSD1306 OLED. KiCad + QMK.
42 parts1GPL-2.0 - 2 layers86.1 × 121.7 mm

OpenDeck v0
Bugatsec/OpenDeck-RP2040-v0
OpenDeck-RP2040-v0 is a DIY 9-key macro pad prototype inspired by the Elgato Stream Deck, built around the Seeed XIAO RP2040.
32 parts1MIT - 2 layers70.7 × 70.7 mm

Whistler mic array
ccc909/Whistler
Open-source 16-channel USB MEMS microphone array: KiCad PCB design, XMOS XU316 (xcore.ai) USB Audio Class 2 firmware with DFU, BOM and JLCPCB-ready production files. CERN-OHL-S.
96 parts1CERN-OHL-S-2.0 - 2 layers45 × 63.5 mm

Motor driver
CK20000/Isolated-Half-Bridge-Driver
An isolated half-bridge motor driver board featuring 6N137 galvanic protection, an IR2101 bootstrap topology, and precise AD8418 bidirectional current sensing.
50 parts1MIT - 2 layers68.6 × 53.3 mm

ModbusRTU Test Shield
CMB27/ModbusRTU-Test-Shield
A shield for Arduino boards that provides an RS-485 transceiver, RS-232 transceiver, and a selection of buttons, lights, and knobs.
46 parts1CERN-OHL-P-2.0 - 2 layers50 × 50 mm

Project board grid smt
feastorg/protokit
protokit is an open-source collection of protoboards, stripboards, expansion boards, and layout boards with configured footprints and trace routing.
1,755 parts1GPL-3.0 - 2 layers97.2 × 106 mm

Projector screen controller
flirbleoss/projector-screen-controller
Motorized Projector Screen Controller
75 parts1