4 layers100 × 80 mm
Pd brick
enkhbold470/pd-brick
USB-C Power Delivery bench supply: STUSB4500 sink, LM5176 buck-boost, INA228 monitor, 1.2-22 V set over I2C by an ESP32-S3. 4-layer KiCad 10 board.
120 partsCERN-OHL-S-2.0
PCB
2,721 boardsKiCad boards from 1,297 GitHub repositories tagged “pcb”, the most starred first; open any of them in PCBKit.
- 4 layers84 × 66 mm
Spinner
enkhbold470/spinner
12-24 V FOC BLDC motor controller: STM32G431, three IR2104 half bridges with 60 V MOSFETs, MT6701 encoder, CAN FD. 4-layer KiCad 10 board.
87 partsCERN-OHL-S-2.0 - 2 layers52.3 × 29.7 mm
- 2 layers51.8 × 47.5 mm
Ethernet
Erhannis/LaserEthernet
Cleanup and manufacture-prep of http://blog.svenbrauch.de/2017/02/19/homemade-10-mbits-laser-optical-ethernet-transceiver, license CC-BY-SA-NC 4.0
79 parts - 2 layers316.7 × 133.4 mm
Keybored
EriicLii/Keybored65
My first attempt at making a keyboard PCB. A 65% board with OLED and rotary encoder support.
161 parts - 4 layers55 × 30 mm
Stitch candidate
EthanKahn08/example-pcb
Design-stage RP2040 USB-C microSD reader: KiCad hardware, verification evidence, UART bring-up firmware, and assembly plan. Unbuilt and untested.
68 parts - 2 layers73.7 × 38.1 mm
Chaser
existedinnettw/flywire
Point-to-point wiring for hand-built KiCad boards (wire wrap, fly wires): curved, non-overlapping wires and an interactive HTML back view
16 partsMPL-2.0 - 2 layers69.9 × 79.4 mm
10x10cm Pinguino SMD-2550
fandres/pinguino_SMD-2550
PCB in surface mount of the Pinguino board based on the microcontroller PIC18F2550
114 parts - 2 layers100 × 86 mm
InterfaceBoard
farlepet/keithley-615-printer-boards
Drop-in replacements for the buffer/printer boards for the Keithley 615 Electrometer
184 partsMIT - 2 layers54 × 64 mm
Tla probe sma breakout
farlepet/tek-tla-probes
Logic probes for Tektronix logic analyzers (specifically TLA5200 series)
51 partsGPL-3.0 - 2 layers49.5 × 20.3 mm
- 4 layers109 × 75.5 mm
Arty scope expansion board
Filip-Kubecki/arty-scope-expansion-board
Two-channel oscilloscope analog front-end shield for Arty A7 (KiCad)
138 parts - 2 layers110 × 80 mm
Codex Address LED-4IC
finnandreh/codex-cad-electronics-lab
Sanitized FreeCAD and KiCad source, exports, checks and videos from Finn Andre Hotvedt's Codex-assisted CAD lab.
44 partsMIT - 2 layers81.3 × 58.4 mm
Preamplifier
flavian112/audio_preamplifier
Hardware design and schematic for audio preamplifier.
63 parts - 2 layers51 × 51 mm
Weather station sensor board
flavian112/weather_station_sensor_board
Hardware design and schematic for weather station sensor.
12 parts - 2 layers69.1 × 95.2 mm
- 2 layers28.4 × 51.5 mm
C3-pico
FrancoSpitale/c3-pico
Minimalist ESP32-C3 dev board — USB-C native USB, no UART bridge. KiCad 9, WIP (schematic ERC-clean).
21 partsMIT - 2 layers
CoinCellSensor
frankie-eight-days/mochiRadio
A 915MHz radio w/ temp sensor, pressure sensor, LED and ATMega328p
4 partsMIT - 2 layers33 × 46 mm
M18-usb interface pcb
fred314159265/m18-usb-interface
Isolated USB-C adapter for Milwaukee M18 battery diagnostics. KiCad design and v1.0 fab files. Software: m18-protocol-rs.
31 partsUnlicense - 2 layers100 × 100 mm
G7 Senior Design V2
Fugate-A/ChairGuru
ChairGuru - A project mainly designed for classroom teachers but has applications in all areas concerning chair management! We have designed a chair system that allows an end-user to create a layout from their computer…
53 parts - 2 layers172.3 × 140.7 mm
Pcb keyboard left
Gabriele-tomai00/split_keyboard_2_qmk_pcb
My second custom split keyboard: qmk firmware, pcb, 3d files
134 parts - 2 layers95.5 × 76 mm
Ppg ecg carrier
Gene0Grey/cuffless-bp-monitor
Cuffless blood-pressure monitor (pulse transit time): ESP32 + AD8232 ECG + 4x MAX30102 PPG via TCA9548A. Single-sided KiCad carrier PCB, generators and firmware.
18 parts - 2 layers61.5 × 25 mm
ElaraGNSSMKRShield
generationmake/ElaraGNSSMKRShield
GNSS Shield with Wuerth Elara for Arduino MKR
39 parts - 2 layers80 × 49 mm
Ef hbmob
Georg-code/onboard
An open source way to save lives. With a 3D printer and a simple circuit board, you can get started. This project is designed to be reliable and easy to use.
58 parts