2 layers34 × 16 mm
Interfaces and adapters
7,328 boards- 4 layers260 × 260 mm
- 2 layers82.4 × 43.1 mm
27C160 Adapter
silvervest/TL866-27Cxxx-adapter
This adapter converts the pin-outs of the parts listed below (which is similar to contemporary DIP-packaged mask ROMs) to 27C4096 pin-out as supported by the readily-available and cheap TL866 series of USB programmers.
12 parts4GPL-3.0 - 4 layers40 × 20 mm
Hdmi pmod
sparkengineering/hdmi-pmod
HDMI type A receptacle to Digilent Pmod™ breakout board
7 parts4CERN-OHL-P-2.0 - 2 layers25.4 × 25.4 mm
SparkFun Qwiic 1U Breakout
sparkfun/SparkFun_Default_KiCad_Setup
A handful of example KiCad projects containing the defaults most used by SparkFun.
67 parts4 - 2 layers74 × 47 mm
- 2 layers83.8 × 55.6 mm
Module CH224K USB C PD sink tiled
Squantor/various_PCB
Various little boards are added here like level shifters, oscillator breakouts and other simple PCB's. Most of these boards are breadboard plugin friendly.
234 parts4MIT - 2 layers80 × 100 mm
Ultimate temp controller
Technariumas/ultimate-temperature-controller
Thermocouple based kiln/oven temperature controller accessable via RS485 or LCD/keypad. Supports temperature profiles on a SD card.
76 parts4Apache-2.0 - 2 layers
MT6816CT encoder breakout
Teslafly/MT6816CT-encoder-breakout
MT6816CT encoder breakout for vesc
12 parts4 - 2 layers45 × 90 mm
Mta1-usb v1-programmer
tillitis/tp1
TP1 is the programmer for the open source security key - TKey
25 parts4CERN-OHL-S-2.0 - 2 layers26.4 × 18.8 mm
STM8S003F3
TLDR-Electronics/STM8S003F3_PCB_Breakout_and_C_examples
STM8S003F3 Breakout board and Simple STM8 C examples with the SDCC compiler
16 parts4MIT - 4 layers70 × 50 mm
Skibidi phone usb hub
tobycm/skibidi-phone-usb-hub
a very skibidi usb hub for my google pixel 7. powered by the fe1.1s, providing 1 upstream usb c port, 2 downstream usb c ports, and 2 downstream usb a ports!!
34 parts4MIT - 2 layers27.9 × 41.7 mm
Modbus Adapter
tomasmcguinness/esp32-modbus-serial-adapter
The hardware folder contains a KiCad PCB design, designed around the ESP32-C6-MINI-1. Both the antenna and non-antenna (U1) versions will work here due to the location of the ESP32.
23 parts4 - 2 layers40.5 × 21 mm
Single sided radio interface
tomwardill/cm108radiowidget
A CM108 based widget for interacting with radios via software
23 parts4MIT - 2 layers173.5 × 85 mm
Whitterm hat
tuna-f1sh/whitterm-wt220
Design files, firmware and linux scripts for my /clever/ serial terminal, the Whitterm-220 - WT-220.
208 parts4GPL-3.0 - 2 layers26.5 × 39.8 mm
- 2 layers33 × 24.5 mm
USB UART MicroUSB
vintlabs/USB-UART-MicroUSB
USB Serial UART with MicroUSB connector and RTS/DTR included in breakout (Hardware)
27 parts4GPL-3.0 - 2 layers48 × 28 mm
Saihub prerouted
xqe2011/saihub
Give your agent a hand: MIT-licensed ESP32-C5 IO board that speaks MCP, so Cursor, Claude Code & Codex can drive GPIO, PWM, UART and power on real hardware.
57 parts4MIT - 2 layers56 × 91 mm
Burstcart via
ytmytm/plus4-burstcart
Burst (fast serial) capable cartridge for Commodore C16/116/Plus4
24 parts4 - 2 layers21.6 × 22.2 mm
MiniDIN9 Breakout
zaxour/9Pin_BreakoutEx
Breakout board for 9 pin mini DIN connectors with additional features for audio and sync.
15 parts4 - 2 layers53.6 × 35 mm
- 2 layers75.9 × 66 mm
Zx talker
zxinfo-diy-electronics/zx-talkman
DIY Speech Interface for ZX Spectrum & ZX81 published in Ny Elektronik 1984 issue 10 page 36
34 parts4 - 2 layers41.9 × 23.8 mm
Grove WizFi360
0xlama/Grove_WizFi360
Grove - UART - WizFi360 is a serial transceiver module featuring the WizNet's WizFi360 WiFi module .
22 parts3MIT - 4 layers30.4 × 45.5 mm
DellModuleBay
a-little-wifi/oddPCIe
PCIe breakout for Dell Latitude laptop optical drive modular bay
39 parts3