
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 layers84 × 90 mm

- 2 layers36 × 28 mm

Timegrapher PreAmp
thisoldscot/Timegrapher_PreAmp
Through-hole piezo preamplifier board for the Timegrapher Studio - conditions the faint escapement signal for the I2S ADC. KiCad.
19 parts - 2 layers17.8 × 17.8 mm

Top board 1
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)
3 parts288GPL-3.0 - 2 layers47.8 × 20.3 mm

Top board 2
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)
7 parts288GPL-3.0 - 4 layers81 × 60 mm

- 2 layers25 × 14.5 mm

Fanpico oled adapter
tjko/fanpico
Fanpico: Open Source Programmable PWM (PC) Fan Controller
3 parts239GPL-3.0 - 2 layers65 × 65 mm

Fanpico powerboard
tjko/fanpico
Fanpico: Open Source Programmable PWM (PC) Fan Controller
22 parts239GPL-3.0 - 2 layers10.5 × 11.5 mm

Encoder board
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).
8 parts83 - 2 layers89.9 × 53.3 mm

68kBoardSupervisorShield
transistorfet/computie
A collection of 68k computer projects, including a unix-like operating system written in C that runs on them
6 parts69GPL-3.0 - 2 layers59.7 × 99.7 mm

Z80Proto
transistorfet/computie
A collection of 68k computer projects, including a unix-like operating system written in C that runs on them
23 parts69GPL-3.0 - 2 layers149.9 × 22.5 mm

Cactus connector
rianadon/Cosmos-Keyboard-PCBs
Open-Source keyboard PCB designs for the Cosmos Keyboard Generator
7 parts43 - 2 layers31.9 × 36 mm

Lemon pcb
rianadon/Cosmos-Keyboard-PCBs
Open-Source keyboard PCB designs for the Cosmos Keyboard Generator
54 parts43 - 4 layers29.9 × 42 mm

Lemon pcb wireless
rianadon/Cosmos-Keyboard-PCBs
Open-Source keyboard PCB designs for the Cosmos Keyboard Generator
47 parts43 - 2 layers17 × 17.9 mm

Plum twist
rianadon/Cosmos-Keyboard-PCBs
Open-Source keyboard PCB designs for the Cosmos Keyboard Generator
9 parts43 - 2 layers120 × 80 mm

Skysweep32 pro
bobberdolle1/SkySweep32
Open-source passive multi-band RF monitoring system | 855–925 MHz, 2.4 GHz, 5.8 GHz | Rev C first prototype
38 parts33GPL-3.0 - 2 layers260 × 55 mm

OM-60-Flex
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
62 parts19CERN-OHL-S-2.0 - 4 layers47.6 × 56.1 mm

OM-60-Rigid PCB
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
47 parts19CERN-OHL-S-2.0 - 2 layers260 × 78.7 mm

OM FlexGrid Flex
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
61 parts19CERN-OHL-S-2.0 - 2 layers260 × 84 mm

OM FlexGrid Flex
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
61 parts19CERN-OHL-S-2.0 - 2 layers285.5 × 118 mm

OM FlexGrid Flex
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
61 parts19CERN-OHL-S-2.0 - 4 layers33 × 65.5 mm

OM FlexGrid Rigid PCB
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
56 parts19CERN-OHL-S-2.0 - 4 layers65.5 × 33 mm

OM FlexGrid Rigid PCB
Open-Muscle/OpenMuscle-FlexGrid
60-sensor wearable with flexible PCB and pressure matrix
56 parts19CERN-OHL-S-2.0 - 2 layers37.8 × 44.4 mm

Servomotor3
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.
79 parts17MIT - 2 layers38 × 44.6 mm

M3-V5
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.
71 parts17MIT