Hardware projects tagged i2c

Open hardware projects tagged i2c on BoardRepo. View schematics and PCBs in the browser and download the sources.

Projects

52 boards
wsen_hids_breakout
@myles-parfeniuk

Breakout board for Würth Elektronik 2525020210002 humidty w/ integrated temperature sensor IC.

schematicpcbbomresistorcapacitordiodeled
AGPL-3.00 stars0 commentsOct 1, 2026
MCU-Data-Logger-PCB
@khaledghanem0

Battery-powered ATmega328P data logger with RTC and dual EEPROM — designed in KiCad, optimized from 4-layer to 2-layer PCB.

schematicpcbbomAVRbatterycrystalresistor
MIT0 stars0 commentsOct 1, 2026
Boardoza_VL53L7CX-3_Multizone_Time-of-Flight_Distance_Sensor_Breakout_Board
@boardoza

Compact 64-zone Time-of-Flight distance sensing breakout board based on the ST VL53L7CX sensor.

schematicpcbbomresistorcapacitordiodeled
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_VL53L7CX-2_Multizone_Time-of-Flight_Distance_Sensor_Breakout_Board
@boardoza

5V-compatible multizone Time-of-Flight distance sensor breakout board based on the VL53L7CX with 64-zone ranging capability.

schematicpcbbomresistorcapacitordiodeled
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_TPiS_1T_1386_Non_Contact_Temperature_Sensor_Breakout_Board
@boardoza

Non-contact infrared temperature sensor breakout board based on the Excelitas TPiS 1T 1386 L5.5 H.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_SAM-M10Q_Multi_GNSS_Positioning_Breakout_Board
@boardoza

Boardoza SAM-M10Q Breakout Board is a high-precision multi-GNSS positioning module with integrated patch antenna and UART/I²C communication support.

schematicpcbbomregulatorresistorcapacitorled
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_OPT4048_High_Precision_Color_Sensor_Breakout_Board
@boardoza

High-precision ambient light and color sensing breakout board based on the Texas Instruments OPT4048 sensor.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_PCF8563T_RTC_I2C_Breakout_Board
@boardoza

Boardoza PCF8563T RTC Breakout Board is a low-power I²C real-time clock module with battery backup support.

schematicpcbbombatterycrystalresistorcapacitor
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_OPT3001_Ambient_Light_Sensor_Breakout_Board
@boardoza

OPT3001 is a compact ambient light sensor board with human-eye response matching and I²C communication support.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_MLX90641_Thermal_Camera_Breakout_Board
@boardoza

MLX90641 Thermal Camera Breakout Board provides 16x12 infrared thermal imaging with I²C interface for non-contact temperature sensing applications.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_MLX90640_Thermal_Camera_Breakout_Board
@boardoza

Compact 32x24 pixel thermal imaging breakout board based on the Melexis MLX90640 infrared sensor array.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_LSM303_Triple_Axis_Accelerometer_Magnetometer_Breakout_Board
@boardoza

LSM303 is an ultra-low-power 6-axis e-compass sensor featuring a 3-axis accelerometer and 3-axis magnetometer with 3.3V/5V logic compatibility.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_I2C_Hub_I2C_Bus_Distribution_Module
@boardoza

Boardoza I²C Hub is a compact passive module that distributes a single I²C bus to multiple connectors for easy multi-device integration.

schematicpcbbomresistordiodeledconnector
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_HP303B_Barometric_Pressure_Sensor_Breakout_Board
@boardoza

HP303B high-accuracy digital barometric pressure and temperature sensor breakout board with I²C and SPI support.

schematicpcbbomregulatorresistorcapacitordiode
CC-BY-SA-4.00 stars0 commentsOct 1, 2026
Boardoza_DRV2605L_Haptic_Driver_Breakout_Board
@boardoza

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.

schematicpcbbomresistorcapacitorconnectorIC
CC-BY-SA-4.01 star0 commentsOct 1, 2026
I2C-Level-Converter
@bluerobotics

Simple I2C Level Converter with Dronecode compatible connectors.

schematicpcbbomregulatorresistorcapacitorconnector
MIT0 stars0 commentsOct 1, 2026
tmp108
@6mil-labs

TMP108 Qwiic breakout board

schematicpcbbomresistorcapacitordiodeled
CERN-OHL-S-2.00 stars0 commentsOct 1, 2026
rpi_zero_i2c_board
@4x1md

I2C Peripherals Board for Raspberry Pi Zero

schematicpcbbomgerbersUSB-CregulatorUSBresistor
CERN-OHL-S-2.00 stars0 commentsOct 1, 2026
esp32-wroom-32-usb-development-board
@habib-creater

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.

schematicpcbbomgerbersESP32USBswitchregulator
CERN-OHL-S-2.01 star0 commentsOct 1, 2026
sht45-qt
@francospitale

SHT45 temperature/humidity breakout, Qwiic/STEMMA QT compatible — KiCad 9, open hardware (MIT)

schematicpcbbomgerbersresistorcapacitorconnectormounting hole
MIT1 star0 commentsOct 1, 2026
Dakboard-HDMI-dimmer-HW
@dotapie

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. Pairs with Dakboard-HDMI-dimmer-FW.

schematicpcbbomresistorcapacitorconnectormounting hole
CC-BY-SA-3.01 star0 commentsOct 1, 2026
Boardoza_VL53L7CX-4_Multizone_Time-of-Flight_Distance_Sensor_Breakout_Board
@boardoza

64-zone Time-of-Flight distance sensing Boardoza VL53L7CX-4 Time-of-Flight Breakout Board with I²C interface and onboard 5V-to-3.3V regulation.

schematicpcbbomresistorcapacitordiodeled
CC-BY-SA-4.01 star0 commentsOct 1, 2026
Boardoza_VL53L7CX-1_Multizone_Time-of-Flight_Distance_Sensor_Breakout_Board
@boardoza

Compact 64-zone Time-of-Flight distance sensing breakout board based on the ST VL53L7CX sensor.

schematicpcbbomresistorcapacitordiodeled
CC-BY-SA-4.01 star0 commentsOct 1, 2026
ALTIMET02
@mlab-modules

High-accuracy barometric pressure and temperature sensing module with MS561101BA03.

schematicpcbbomgerbersresistorcapacitordiodeconnector
AGPL-3.02 stars0 commentsOct 1, 2026
PCB-RTC-PCF8563-for-M5
@botanicfields

a PCB of PCF8563 RTC with Grove I2C for M5Stack and M5Atom synchronized with NTP

pcbbomcrystalresistorcapacitordiode
CC0-1.02 stars0 commentsSep 30, 2026
BSED
@rcmgames

Byte Sized Encoder Decoder - Reads 8 quadrature encoders and communicates over I2C (and is qwiic compatible).

schematicpcbbomgerbersAVRconnectorIC
MIT3 stars0 commentsSep 30, 2026
OmniProbe
@emertcakir

Open-source SWD, JTAG, UART, SPI, I2C and Logic Analyzer platform powered by RP2040

schematicpcbbomRP2040USB-Cregulatorcrystal
MIT3 stars0 commentsSep 30, 2026
tsys01
@eddyem

BTA primary mirror thermal monitoring using STM32 and TSYS01

schematicpcbbomgerbersSTM32USBswitchresistor
AGPL-3.04 stars0 commentsSep 30, 2026
Ultimate_Adafruit_MacroPad
@fescron

An upgraded Adafruit Macropad with easier macro-layer-switching using additional NeoKey buttons (and OLED display). Also includes keyboard-layout switching and dimming as well as a lot of macro-definitions.

schematicpcbbomgerbersconnectormounting hole
MIT5 stars0 commentsSep 30, 2026
USB-I2C-BRIDGE
@jana-marie

CP2112 based USB I2C bridge

schematicpcbbomUSB-CswitchUSBresistor
CERN-OHL-S-2.014 stars0 commentsSep 30, 2026
pi-eeprom-programmer
@andrewteall

A Raspberry Pi GPIO EEPROM reader and writer

schematicpcbbomgerbersconnectorIC
MIT20 stars0 commentsSep 30, 2026
reinforcement-autonomous-hexapod
@nguyentrongphuc552003

Intelligent hexapod control system with AI-based adaptive gait, kernel drivers, and user-space coordination.

schematicpcbbomresistorcapacitorinductordiode
GPL-2.03 stars0 commentsSep 23, 2026
lion2cell01
@mlab-modules

Dual-cell Li-Ion Battery management system.

schematicpcbbomswitchresistorcapacitorinductor
GPL-3.02 stars0 commentsSep 17, 2026
stm32f103rb_usb_to_uart_spi_i2c
@stulinaz

Firmware and Kicad project for my USB to UART/I2C/SPI converter

schematicpcbbomSTM32USBregulatorcrystal
No license20 stars0 commentsSep 17, 2026
mcu-datalogger-kicad
@iamshubham3

4-layer PCB datalogger designed in KiCad — ATmega328P with DS1337 RTC, I2C EEPROM, and UART/SPI/I2C breakouts

schematicpcbbomAVRbatterycrystalresistor
No license0 stars0 commentsSep 17, 2026
aspect2-pcb
@xboxoneresearch

Facet2 FabA PCB Clone

schematicpcbbomSTM32USB-Cswitchregulator
No license14 stars0 commentsSep 17, 2026
lightning01
@mlab-modules

Lightning sensor module based on AS3935 Franklin Lightning Sensor IO. Sensor can be connected via I2C or SPI bus.

schematicpcbbomresistorcapacitorinductordiode
No license2 stars0 commentsSep 17, 2026
gh4pin01
@mlab-modules

This 4-pin module connects JST-GH connectors, often used in Pixhawk drones, to standard pin headers, making it easier to build custom electronics and use I2C or CAN bus communication.

schematicpcbbomconnectormounting hole
GPL-3.01 star0 commentsSep 17, 2026
minimeter
@devkitty-io

Tiny LiPo Charger & I2C Battery Meter (w/ MAX17048)

schematicpcbbombatteryregulatorresistorcapacitor
No license1 star0 commentsSep 17, 2026
i2c-moisture-sensor
@miceuz

I2C based soil moisture sensor

pcbbom
Apache-2.0255 stars0 commentsSep 5, 2026
power-extender
@stargate01

Hardware and software for a power and IO extension PCB with current monitoring and I2C interface.

pcbbom
MIT5 stars0 commentsSep 5, 2026
i2c-temp-probe-pcb
@galopago

Small circuit board, designed to be installed inside a metal tube or thermowell.

pcbbom
MIT1 star0 commentsSep 5, 2026
iq_modulator
@antonjan

IQ Modulator for 2M and 70cm from I2C and ALSA PCM Audio on Orange PI Zero (Estimated TX Power 500mW)

pcbbom
GPL-3.07 stars0 commentsSep 5, 2026
mcp9600-module
@vintlabs

MCP9600 I²C Module (Hardware)

pcbbom
CC-BY-SA-4.01 star0 commentsSep 5, 2026
qn8035-rpi-fm-radio
@dilshan

QN8035 based Raspberry Pi FM radio receiver

pcbbom
MIT21 stars0 commentsSep 5, 2026
i2cpy
@iynehz

Python I2C library supporting multiple driver implementations

schematicpcbbomresistorcapacitordiodeled
MIT10 stars0 commentsAug 31, 2026
as5601_breakoutboard_v1_0
@y2kblog

12bit分解能の磁気式アブソリュートエンコーダAS5601(インクリメンタル出力)を2.54mmピッチに変換する基板

schematicpcbbomresistorcapacitorconnectormounting hole
MIT8 stars0 commentsAug 31, 2026
touch-n-drink
@zargony

Hardware and firmware for cashless payment device for cold drinks at the aeroclub at EDLH

schematicpcbbomESP32RISC-Vbuzzerresistor
EUPL-1.214 stars0 commentsAug 31, 2026
usbi2c01
@mlab-modules

USB device to I²C master adapter with Linux kernel support

schematicpcbbomUSBresistorcapacitordiode
GPL-3.08 stars0 commentsJul 9, 2026
oled01
@mlab-modules

OLED module with SSD1306 controller, I2C interface level shifter, integrated buzzer, touchscreen, and LEDs.

schematicpcbbomregulatorbuzzerresistorcapacitor
GPL-3.00 stars0 commentsJul 9, 2026
tfesc02
@thunderfly-aerospace

ESC for BLDC motors for UAVs with I2C interface

schematicpcbbomregulatorresistorcapacitorinductor
GPL-3.02 stars0 commentsJul 9, 2026
pi2co-usb
@ansemjo

USB to I2C bridge using an Atmel AVR ATtiny85V and even more tiny than I2C-Tiny-USB.

schematicpcbbomAVRUSBswitchregulator
GPL-2.04 stars0 commentsJul 9, 2026

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