4 layers38.1 × 17.8 mm
1bitsy
1Bitsy/1bitsy-hardware
Small breadboard friendly STM32 (eventually other mcu's too) eval boards with exposed JTAG and SWD for the use with Black Magic Probe and others!
99 parts66
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.
- 2 layers60 × 50 mm
Vx8 gps prototype v2.0
4x1md/vx8_gps
DIY GPS module for Yaesu VX-8DR/VX-8DE handheld transceiver.
56 parts66MIT - 2 layers75 × 40 mm
PicoTop Board Rev2
7west/PicoTop
A very basic computer & OS based on the RP2350 microcontroller
86 parts66 - 4 layers37.7 × 37.7 mm
Dual radio pcb
AnyLeaf/elrs-hardware
This repo contains open source hardware information for AnyLeaf ELRS receivers
68 parts66MIT - 2 layers57 × 35.5 mm
- 2 layers45 × 53 mm
LoRa Node
cernohorsky/LoRa-Node
Simple LoRa Node based on Arduino Pro mini with RFM95W module and PCB antenna.
35 parts66 - 2 layers131.5 × 184.4 mm
- 4 layers17.8 × 50.8 mm
ReDIP CIA
daglem/reDIP-CIA
MOS 6520 PIA / MOS 6522 VIA / MOS 6526/8520/8521 CIA replacement
61 parts66CERN-OHL-S-2.0 - 2 layers50 × 50 mm
OpenDTU
dokuhn/openDTU-BreakoutBoard
To read Hoymiles inverters there is a nice project called OpenDTU which uses an ESP32 to talk to them.
12 parts66 - 2 layers
T41-Main+RF board V012
DRWJSCHMIDT/T41
This is the repository for the officially released V10, V11, and V12 versions of the T41 Software Defined Transceiver hardware and kits.
255 parts66 - 2 layers59.8 × 62 mm
- 4 layers137 × 79.5 mm
- 6 layers112 × 98 mm
- 2 layers126.7 × 105.6 mm
Pskeeb4 gtr lp ks27 hotswap
klesh/pskeeb
Portal Split Keyboard with trackpoint and rotary encoder support
46 parts66Apache-2.0 - 2 layers241.6 × 90.5 mm
- 4 layers94.6 × 83.4 mm
Fmcw nightly
matthuszagh/fmcw
6GHz frequency-modulated continuous-wave radar with real-time range detection
446 parts66Apache-2.0 - 2 layers53.3 × 81.3 mm
L0ckcr4ck3r
Mew463/Project-l0ckcr4ck3r
I've always wanted to build a robot that actually decodes locks while maintaining a cool desk toy vibe! I am quite happy with the user-oriented design and doubles as a nice fidgety-toy-thing to play with.
19 parts66MIT - 6 layers30 × 48 mm
Holter
peterisza/mobilecg
MobilECG II is an open source clinical grade Holter ECG. For more information, please visit http://mobilecg.hu.
231 parts66 - 2 layers77 × 32 mm
BananaSchplit
pms67/BananaSchplit
Single rail DC (<12V) to split rail DC supply (+/-12V and +5V).
53 parts66MIT - 4 layers58.4 × 22.9 mm
Quickfeather board
QuickLogic-Corp/quick-feather-dev-board
100% open source dev kit for EOS S3 MCU+eFPGA SoC supported by fully open source SDK and FPGA Toolchain
101 parts66CC-BY-SA-4.0 - 2 layers54 × 64 mm
DonConIOmini
ravinrabbid/DonCon2040
RP2040 based firmware and hardware for DIY Taiko no Tatsujin Drum Controllers
96 parts66MIT - 2 layers149.9 × 99.5 mm
- 2 layers90 × 60 mm
Gotek Floppy Disk Emulator V2
RichardRozehnal/Gotek-Floppy-Disk-Emulator-V2
Floppy disk emulator for old computers and machines, Amiga, Atari ST, etc.
66 parts66GPL-3.0 - 2 layers156.3 × 110.1 mm
Takmak
seniorsoftwarevlogger/takmak
Takmak is the 65% orthogonal staggered columns split keyboard
131 parts66