
Open-source KiCad boards
107,410 boardsPrinted circuit boards designed in KiCad and published on GitHub, each with its parts, layers and size, its README and its files; open any of them in PCBKit.
- 2 layers30 × 67.7 mm

- 2 layers100 × 100 mm

- 2 layers169.3 × 128 mm

PSU PCB
ThomasVDD/SmartSupply
SmartSupply is a digital battery powered lab powersupply. It is Arduino compatible and can be controlled via PC over USB.
134 parts96 - 4 layers87.3 × 56.7 mm

CM4ClusterHat
will127534/Miniature-CM4-Cluster
A dense cluster for four Raspberry Pi Compute Module 4
240 parts96MIT - 2 layers17.9 × 26.2 mm

LevelTranslatorXiaoRp2040
xyphro/I3CBlaster
Raspberry pico / RP2040 based USB to I3C converter with Python support
16 parts96MIT - 4 layers100 × 100 mm

- 4 layers26 × 46.5 mm

Day 02 Four Port USB C
i2cjak/Framework_Expansion_Cards
In which i2cjak creates a new expansion card design every day until he is given a NICE Framework laptop
54 parts95CERN-OHL-P-2.0 - 2 layers103.2 × 74.1 mm

- 2 layers30.7 × 76.1 mm

Repeater v2
plusvic/simplebus2-intercom
General description of the Simplebus2 protocol used by some Comelit's intercoms. Hardware for retransmitting Simplebus2 messages over UART.
17 parts95CC0-1.0 - 4 layers68.6 × 53.3 mm

Arduino UNO R4 WiFi
sabogalc/KiCad-Arduino-Boards
A collection of Arduino boards recreated from scratch in KiCad. Legacy USB connectors have been replaced with USB-C where applicable.
262 parts95WTFPL - 4 layers91.1 × 53.6 mm

Parallel2usb
tomverbeure/fake_parallel_printer
Capture traffic on parallel printer port to USB
46 parts95BSD-2-Clause - 2 layers65.2 × 74.4 mm

- 2 layers124.8 × 104.4 mm

- 2 layers80 × 54.9 mm

ESP32WifiAisTempVolt2
AK-Homberger/NMEA2000WifiGateway-with-ESP32
This repository shows how to build a NMEA2000 WiFi Gateway with voltage and temperature alarms.
18 parts94GPL-3.0 - 2 layers135 × 100 mm

Z80vga
anjennings/Tom80
2B is the "definitive" version so all code going forward is designed for that version of the board. Minor hardware differences mean that code for 2.0 may not work on 2.0B without tweaks (mostly related to ram banking)
53 parts94MIT - 2 layers118.3 × 38.9 mm

- 4 layers168 × 52 mm

UsbSourceMeasure
BerkeleyHCI/PolymorphicBlocks
A Python-based hardware description language for PCBs for higher-level (block-diagram / system-architecture level) PCB design through libraries of directly reusable subcircuit generators.
319 parts94BSD-3-Clause - 2 layers80 × 50 mm

Thermal Camera
Circuit-Digest/MLX90640-Thermal-Camera
An Open Source Thermal Imaging IR camera that you can build yourserlf
66 parts94 - 2 layers35.1 × 172.3 mm

PiggyBackRS485
KALTCHUK/Z80_Modular_Computer
"Anyone who has brought up CP/M on a homebuilt computer has felt this moment of elation. A myriad of connections are properly closed; bits are flying at lightning speeds over busses and through circuits and program…
40 parts94 - 6 layers35.5 × 35.5 mm

ADC A v1
macaba/TheManhattanToolkit
Input R - RNCF0603DTE10R0 (10 ohm) Input CM C - CGA3E1C0G2A472J080AC (4.7nF) Input DM C - DNP
55 parts94MIT - 2 layers220 × 215 mm

- 2 layers200 × 100 mm

Polykit x monosynth
polykit/polykit-x-monosynth
The Polykit X1 is a DIY semi-modular, analog, patchable synthesizer
167 parts94 - 2 layers50 × 55.4 mm

- 2 layers548 × 93 mm

DivaConSlider
ravinrabbid/DivaCon2040
RP2040 based firmware for DIY Project Diva Arcade Controllers
227 parts94MIT