2 layers68.6 × 53.3 mm
Fdshield
yas-sim/floppy_disk_shield_2d
This is a project to retain 2D/2DD floppy disk data as a raw bit-stream data. The project includes both HW and SW.
30 parts49Apache-2.0
Arduino uno
27 boardsKiCad boards from 25 GitHub repositories tagged “arduino-uno”, the most starred first; open any of them in PCBKit.
- 2 layers62.9 × 29.4 mm
Ht9032-cli module
dilshan/arduino-caller-id
Arduino UNO based telephone caller identification (CLI) display unit
23 parts34MIT - 2 layers39.8 × 16.4 mm
- 2 layers68.6 × 53.3 mm
Sduino uno
roybaer/sduino_uno
A development board with STM8S105K6 MCU in Arduino UNO form factor
51 parts18 - 2 layers53.3 × 68.3 mm
- 2 layers100 × 50 mm
- 4 layers68.6 × 53.3 mm
- 2 layers68.6 × 53.3 mm
- 2 layers68.6 × 53.3 mm
Arduino LMeter shield
michpro/Arduino_LMeter_shield
Arduino Inductance Meter shield
33 parts3CERN-OHL-P-2.0 - 2 layers68.6 × 53.3 mm
Arduino Compatible Board
ercanersoy/Arduino-Compatible-Board
Arduino Compatible Board for professional use
48 parts2CC-BY-SA-4.0 - 2 layers73 × 48 mm
Berg wire jumper extender
nandanghawate/arduino-atmega328-custom-hw-sw-projects-NG
This will be / is the collection of sample circuits, PCB layouts, codes and libraries that I will create during the process of exploring ATMEGA328, Arduino - Uno, Nano, Mini
19 parts2 - 2 layers62.5 × 61.5 mm
Jeden board
Wojtekb30/Jeden-board
KiCad hardware project. A ATMega328P-based development board with Arduino Uno's functionality.
29 parts2 - 2 layers78.7 × 74.9 mm
Central panel
bitsandpixels-io/kids-control-panel
Spaceship-like control panel for kids, based on Arduino
40 parts1MIT - 2 layers
Ehz diag
e-cite/arduino-ehz-diag
Circuit, PCB and software for a smart meter (EHZ EDL-21) diagnosis tool based on Arduino UNO
14 parts1MIT - 2 layers66 × 68.6 mm
FP2800A Tester
Qeteshpony/FP2800A-Tester
Arduino Uno compatible shield for testing functionality of a FP2800A
99 parts1BSD-2-Clause - 2 layers75.4 × 53.8 mm
Pet puller shield
sh123/arduino_uno_pet_puller
Alternative Arduino UNO based shield and firmware for Petalot
20 parts1GPL-2.0 - 2 layers53.3 × 68.6 mm
Arduino uno
Chicken-Fried/Cave-Uno
Modernized Arduino Uno R3 compatible board powered by Microchip ATmega328PB. Features driverless USB-C, 1.5A sync buck, ideal-diode OR-ing, dual I2C/SPI/UART, and LiDAR topographic artwork.
85 parts - 2 layers68.6 × 53.3 mm
Nano2UNO Adapter-3V3
CMB27/Nano2UNO-Adapter-3V3
A circuit board to adapt 3.3V Arduino Nano boards the the Arduino UNO form factor.
17 partsCERN-OHL-P-2.0 - 2 layers68.6 × 53.3 mm
Nano2UNO Adapter-5V
CMB27/Nano2UNO-Adapter-5V
A circuit board to adapt 5V Arduino Nano boards the the Arduino UNO form factor.
16 partsCERN-OHL-P-2.0 - 2 layers
Ehz sensor
e-cite/ehz-sensor
Circuit, PCB and software for a 2-channel smart meter (EHZ EDL-21) sensor tool for ESP32 and Arduino UNO
10 partsMIT - 2 layers68.6 × 53.3 mm
- 2 layers68.6 × 53.3 mm
- 2 layers170 × 105 mm
PedestrianSense
KostelidisDev/PedestrianSense
Development of an automatic traffic light with pedestrian detection using Arduino, distance sensors, LEDs and an audible signal, with automatic adjustment transition in case of presence or absence of pedestrians.
15 partsMIT - 4 layers68.6 × 53.3 mm
ArduinoUnoProtoShield
SimulatedFlow/kicad-board-2026-07-28-arduinounoprotoshield
Arduino Uno prototyping shield - perfboard-style THT grid for sensors and displays, solder-your-own DIY shield. Bare PCB, KiCad source files.
24 parts