2 layers109 × 95 mm
I2C
196 boardsKiCad boards from 85 GitHub repositories tagged “i2c”, the most starred first; open any of them in PCBKit.
- 4 layers52.7 × 42.5 mm
OmniProbe
emertcakir/OmniProbe
Open-source SWD, JTAG, UART, SPI, I2C and Logic Analyzer platform powered by RP2040
77 parts4MIT - 2 layers22 × 26.4 mm
- 2 layers80.5 × 99.9 mm
Automative Hexapod
NguyenTrongPhuc552003/reinforcement-autonomous-hexapod
Intelligent hexapod control system with AI-based adaptive gait, kernel drivers, and user-space coordination.
160 parts3GPL-2.0 - 2 layers21.6 × 25.4 mm
ByteSizedEncoderDecoder
RCMgames/BSED
Byte Sized Encoder Decoder - Reads 8 quadrature encoders and communicates over I2C (and is qwiic compatible).
17 parts3MIT - 2 layers30 × 15 mm
TFASPDIMU02
ThunderFly-aerospace/TFASPDIMU02
I²C bus differential pressure sensor with IMU and Magnetometer.
43 parts3GPL-3.0 - 2 layers45 × 45 mm
- 2 layers44 × 44 mm
Bf-027
botanicfields/PCB-RTC-PCF8563-for-M5
a PCB of PCF8563 RTC with Grove I2C for M5Stack and M5Atom synchronized with NTP
25 parts2CC0-1.0 - 2 layers56.9 × 63.9 mm
Opi hat
eddyem/ARMsingleboard
Something for singleboard PC (Orange Pi Zero1/2 etc): I2C, SPI etc.
53 parts2GPL-3.0 - 2 layers25.4 × 27.9 mm
MAX31865 I2C
JochiSt/MAX31865_I2C
SPI to I2C bridge fo iInterfacing the MAX31865 via I2C
39 parts2GPL-3.0 - 2 layers
- 2 layers40.1 × 19.8 mm
ALTIMET02
mlab-modules/ALTIMET02
High-accuracy barometric pressure and temperature sensing module with MS561101BA03.
17 parts2GPL-3.0 - 2 layers40.1 × 30 mm
LIGHTNING01
mlab-modules/LIGHTNING01
Lightning sensor module based on AS3935 Franklin Lightning Sensor IO. Sensor can be connected via I2C or SPI bus.
33 parts2 - 2 layers80.8 × 60.5 mm
- 2 layers45 × 30 mm
I2c over rj45
rmingon/i2c-over-rj45
Open-source differential I²C extender: run I²C over 100 m of Cat5e using the PCA9615. KiCad sources, RJ45 wiring, and bus-recovery included.
14 parts2CERN-OHL-S-2.0 - 2 layers30.5 × 25.4 mm
- 2 layers20 × 20 mm
B DRV2605L BRK R1.0
Boardoza/Boardoza_DRV2605L_Haptic_Driver_Breakout_Board
Boardoza DRV2605L Haptic Driver Breakout Board is an I²C-controlled smart vibration motor driver for ERM and LRA actuators with built-in haptic effect library.
10 parts1CC-BY-SA-4.0 - 2 layers20.3 × 20.3 mm
B VL53L7CX-1-BRK R1.0
Boardoza/Boardoza_VL53L7CX-1_Multizone_Time-of-Flight_Distance_Sensor_Breakout_Board
Compact 64-zone Time-of-Flight distance sensing breakout board based on the ST VL53L7CX sensor.
14 parts1CC-BY-SA-4.0 - 2 layers30 × 65 mm
Dakboard HDMI dimmer v1
DotaPie/Dakboard-HDMI-dimmer-HW
Custom Raspberry Pi HAT with a BH1750 light sensor and PIR motion sensor for automatic HDMI display dimming. KiCAD source and JLCPCB-ready gerbers. Fits any Raspberry Pi with a 40-pin header.
17 parts1EUPL-1.2 - 2 layers36 × 20.3 mm
- 2 layers25.4 × 20.3 mm
Sht45-qt
FrancoSpitale/sht45-qt
SHT45 temperature/humidity breakout, Qwiic/STEMMA QT compatible — KiCad 9, open hardware (MIT)
10 parts1MIT - 2 layers5.5 × 35 mm
LM75A PROBE PCB
galopago/i2c-temp-probe-pcb
Small circuit board, designed to be installed inside a metal tube or thermowell.
13 parts1MIT - 4 layers92 × 88 mm
IOT
Habib-creater/ESP32-IoT-Monitoring-Control-Board
4-layer ESP32-based IoT monitoring and control board with environmental sensing, relay control, USB-C, and Qwiic expansion.
63 parts1 - 2 layers51.8 × 31 mm
ESP32-WROOM-32
Habib-creater/esp32-wroom-32-usb-development-board
Professional ESP32-WROOM-32 development board with USB-UART programming, 3.3V regulation, BOOT/RESET control, GPIO expansion, I2C ESD protection, and complete KiCad manufacturing documentation.
29 parts1CERN-OHL-S-2.0