4 layers79.2 × 26.3 mm
HPE FlexibleLOM adapter x4
TobleMiner/HPE-FlexibleLOM-adapter
Adapter for using HPE FlexibleLOM cards in full height PCIe slots
9 parts246GPL-3.0
Interfaces and adapters
7,328 boards- 6 layers80 × 49 mm
ButterStick
butterstick-fpga/butterstick-hardware
Basic ECP5 based GigE to SYZYGY interface.
256 parts225 - 4 layers431.5 × 125.5 mm
Clavier
lsartory/Clavier
An FPGA-based mechanical keyboard with an integrated USB hub and communication interfaces
344 parts212 - 2 layers57 × 65 mm
Pitubedirect hat dip
hoglet67/PiTubeDirect
Bare-metal Raspberry Pi project that attaches to the Acorn TUBE interface and emulates many BBC Micro Co Processors
33 parts207GPL-3.0 - 2 layers26.7 × 118.1 mm
Programming adapter
free-pdk/easy-pdk-programmer-hardware
Easy PDK programmer for PADAUK microcontroller. EDA, schematic, gerber, bom, housing stl, firmware
28 parts206CC-BY-SA-4.0 - 2 layers93 × 40.7 mm
Ecp interface bjt
Dilbert66/esphome-vistaECP
This is an implementation of an ESPHOME custom component and ESP Library to interface directly to a Safewatch/Honeywell/Ademco Vista 15/20 alarm system using the ECP interface and very inexpensive ESP8266/ESP32 modules .
28 parts194LGPL-2.1 - 2 layers103.3 × 63.7 mm
- 2 layers100 × 100 mm
- 4 layers100 × 100 mm
DAC ADC PWM IO
DanielMartensson/STM32-PLC
STM32 microcontroller with lots of periferials such as ADC, differential ADC, Input Capture, PWM, USB, Encoder, DAC, Digital Input, RTC, CAN-bus + Alarm etc.
270 parts183MIT - 2 layers99.1 × 76.2 mm
Pico dev
execuc/u2if
USB to interfaces implementing MicroPython "machine" module functionalities on a computer.
36 parts182 - 2 layers35.6 × 22 mm
Sharp memory display
karnadii/sharp_memory_display_breakout
Sharp memory display breakout for LS011B7DH03
19 parts170CERN-OHL-P-2.0 - 4 layers40 × 14 mm
Rs probe
probe-rs/rusty-probe
This is an open hardware probe for the Serial Wire Debug (SWD) and JTAG protocol. Based on the RP2040 MCU.
108 parts170 - 4 layers116.8 × 121.8 mm
Se30
rhalkyard/SEthernet
Modern, low-cost 10/100 Ethernet for the Macintosh SE and SE/30
50 parts167GPL-3.0 - 2 layers99.1 × 88.9 mm
1002 EPROM EMU NG 2.2d
Kris-Sekula/EPROM-EMU-NG
EPROM Emulator Project with Arduino
49 parts161Apache-2.0 - 2 layers37.6 × 29.3 mm
Romulator programmer interface
bitfixer/bf-romulator
Romulator - RAM/ROM replacement and debug for 6502 CPU systems
5 parts160 - 2 layers21 × 15.5 mm
MRF Pro v8-breakout
acornelissen/IDENTIDEM.design-MRF2
Open hardware medium-format rangefinder for Mamiya Press lenses: ESP32-S3 firmware, LiDAR-coupled focusing, custom PCBs, printed parts.
13 parts158GPL-3.0 - 2 layers50.3 × 50.3 mm
Throwing star
greatscottgadgets/throwing-star-lan-tap
A passive tap for monitoring 10/100 Ethernet.
7 parts151 - 2 layers82.4 × 43.1 mm
27C160 Adapter
mafe72/27c160-tl866-adapter
Adapter to program EPROMs with more than 40 Pins on the TL866 universal programmer.
12 parts149GPL-3.0 - 4 layers28 × 98.2 mm
ESP32-PoE ISO Rev N1
OLIMEX/ESP32-POE-ISO
ESP32 Power Over Ethernet board with 3000VDC Galvanic insulation
146 parts145 - 4 layers40 × 14 mm
Hs probe
probe-rs/hs-probe
This is an open hardware probe for the Serial Wire Debug (SWD) and JTAG protocol. It utilizes an STM32F723 MCU which has an USB 2.0 High-speed Phy.
57 parts145 - 2 layers33.9 × 19.2 mm
Diabolic drive programmer
unit72784/Diabolic-Drive
Stealthy, modern, wireless keystroke injection tool in a universal 4 layer double-sided flash drive PCB form factor with 64 GB storage
21 parts143 - 2 layers22 × 34 mm
- 2 layers62.4 × 31.6 mm
- 2 layers36.7 × 40.6 mm
Psu
BoostedMoose/v-link
A modular, open-source vehicle diagnostic and infotainment system.
20 parts138GPL-3.0