4 layers54 × 38 mm
USB C breadboard power supply
bytesizedengineering/USB-C-Power-Delivery-Breadboard-Power-Supply
44 parts21
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.
- 4 layers30 × 23.5 mm
NIMRS-21Pin Decoder
CDFER/NIMRS-21Pin-Decoder
An open source 21-Pin DCC Decoder for model trains
89 parts21 - 2 layers88 × 88 mm
- 12 layers280 × 111.2 mm
Fpga candelabra
chipsalliance/rocket-pcb
PCB libraries and templates for rocket-chip based FPGA/ASIC designs
738 parts21Apache-2.0 - 2 layers
- 2 layers80 × 125.4 mm
- 2 layers100 × 75 mm
- 2 layers243.8 × 243.8 mm
- 4 layers25 × 25 mm
2-4GHzPA
db4um/PA_13cm_2W
Small 2W PA for the 13cm hamband. Perfekt as a preamp for Eshail2
19 parts21MIT - 2 layers25.4 × 25.5 mm
Optoiso board only
DCC-EX/DCCInspector-EX
The DCC signal packet inspector. A custom packet analyzer/sniffer for Arduino and ESP32
11 parts21GPL-3.0 - 2 layers60 × 110 mm
- 2 layers56.6 × 57.7 mm
Quack
demik/quack
Bluetooth and ADB Mouse Converter for Macintosh 128/512/Plus, Apple Lisa and Apple IIc
52 parts21Apache-2.0 - 2 layers110 × 100 mm
PidginTranslator
DevMubarak1/PidginTranslator
Handheld translator for Nigerian languages. No internet needed for common phrases, YarnGPT for everything else.
14 parts21MIT - 2 layers49.3 × 63.4 mm
- 2 layers58 × 26.8 mm
- 2 layers79.8 × 129.5 mm
- 2 layers143.5 × 78.6 mm
- 4 layers32 × 63.8 mm
- 4 layers85 × 56 mm
- 2 layers152.9 × 74.9 mm
- 2 layers67.3 × 33 mm
Led driver
eulerlab/open-visual-stimulator
An arbitrary-spectrum spatial visual stimulator for vision research
11 parts21MIT - 2 layers76.4 × 99 mm
- 2 layers54.2 × 46.5 mm
Neoheart v2
fellettigiacomo/NeoHeart
Open Source ATtiny816-based heart shaped PCB with Addressable LEDs!
46 parts21CERN-OHL-S-2.0 - 2 layers32.2 × 59.4 mm
