2 layers114 × 61.4 mm
Boards using the BAT54J
82 boardsBoards in 73 GitHub repositories, designed in KiCad, that use the BAT54J by Nexperia (1 Independent 200mA 2uA@25V 30V 600mA 800mV@100mA SOD-323F Schottky Diodes ROHS). See how each wires it, with its parts, size, README and files; the BAT54J’s symbol, footprint and pinout are on its own page.
- 4 layers350 × 155 mm
Ventilator
RespiraWorks/Ventilator
Fully-featured ICU ventilator design, optimized for manufacture using commonly available components and free to license.
788 parts169Apache-2.0 - 2 layers70 × 73.1 mm
Neopico hd
fliperama86/neopico-hd
Digital video and audio capture with HDMI output for Neo Geo MVS arcade hardware using Raspberry Pi Pico 2
37 parts90Unlicense - 2 layers47.2 × 55.5 mm
Tinta l2
c0de111/tinta
Battery-powered e-paper sign: room signage, sensor graphs, home automation, or anything over Wi-Fi. Wakes by real-time clock, NFC tap, or button. Raspberry Pi Pico W firmware, custom PCB, and 3D-printed case included.
60 parts39Apache-2.0 - 6 layers158 × 174 mm
TritonECU Main
alpauna/TritonECU
ESP32-S3 engine control unit — fuel injection, ignition timing, wideband O2 (CJ125/LSU 4.9), dashboard, and MQTT telemetry
457 parts10 - 2 layers54.1 × 48.6 mm
E Fidget V3
miameows/E-Fidget
Hi there! There's a lot of moving parts with this project right now, so why don't you check out my latest blog post for more info?
29 parts6MIT - 2 layers68.6 × 53.3 mm
INK-128DA28
TheEccentricGenius/INK4u_Board
An UNO form factor board with a AVR128DA28 processor.
59 parts5CERN-OHL-W-2.0 - 2 layers66 × 99.1 mm
- 4 layers68.4 × 52.4 mm
Openbms
open-batt/openbms-hardware
OpenBMS - Open Source Battery Management System Hardware
220 parts4MIT - 4 layers96.5 × 96.5 mm
Colorlight i5-motherboard
FPiorski/colorlight-i5-motherboard
A base board for the colorlight i5 FPGA module with a bunch of connectors
76 parts2 - 4 layers63.2 × 70.5 mm
- 4 layers136.2 × 25 mm
- 2 layers43 × 43 mm
Iec62386-panel
peterisza/iec62386-wall-panel
Wall panel for smart homes. 2 wires, no polarity, arbitrary bus topology, exchangeable front panel with hardware capacitive buttons, temperature+humidity+pressure+CO2.
64 parts2 - 4 layers100.2 × 55.7 mm
Allwinner v3s 1
Rynxie/tdrf-lorawan-gateway-pcb
A custom-designed, open-source LoRaWAN gateway PCB powered by the Allwinner V3s ARM Cortex-A7 processor and the Semtech SX1302 LoRa concentrator.
236 parts2 - 2 layers60 × 40 mm
New ADC Circuit with Op Amp
abdurrahman-eee/Bipolar--5-V-to-0-3.3-V-Sensor-Interface-Board
The Bipolar ±5 V to 0-3.3 V Sensor Interface Board is a general-purpose analog front-end designed to safely connect bipolar ±5 V sensor outputs to 3.3 V microcontroller ADC inputs.
18 parts1 - 4 layers220 × 150 mm
Dual active bridge
ajkumar-1907/POWER-ELECTRONICS-LIB
Open-source library of power electronics converter topologies — KiCad schematics, working principles, use cases, and design notes for DC-DC, AC-DC, DC-AC, and AC-AC converters. Free to use, modify, and build on.
174 parts1MIT - 4 layers60 × 107 mm
Clock sync 16
AllenNeuralDynamics/harp.device.white-rabbit
0361: A 16-output Harp clock synchronizer
172 parts1 - 4 layers
- 4 layers35 × 35 mm
NavIC GNSS
Chirag-Vadrali/ASTRA-NAV-M9-Reverse-Engineered
A reverse-engineered GNSS receiver board centered on the u-blox NEO-M9N module. The KiCad design is labeled ASTRA-NAV M9, Rev 1.0 and is intended to provide a compact, host-connected GNSS interface with a dedicated RF…
25 parts1 - 4 layers42 × 42 mm
Power Board
Harveyn4444/TocoSat-powerboard
The TocoSat power board hardware and software files
74 parts1 - 4 layers71.1 × 149.9 mm
- 4 layers100 × 70.8 mm
- 2 layers66 × 21.5 mm
- 4 layers55 × 80 mm
LORASOS
whoelse091/MAXWELLS0S
Open-source LoRa mesh that relays a hiker's SOS + GPS across cellular-dark mountains to Mountain Rescue. No GSM, no internet. Hardware under CERN-OHL-S.
49 parts1