I2C
IC serial bus protocol speed grades; standard mode: 0.1 / 0.4, fast mode: 1.0 / 3.4 / 5.0 Mbit/s are maximum ratings. Also known as: Inter-Integrated Circuit
See Also: Serial, Serial Communications, LIN, Can bus, ExpressCard, Fieldbus, FireWire, RS-232, RS-485, PCI Express, Serial ATA, Serial Peripheral Interface, SMBus
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Product
Barometric Pressure/Temperature/Altitude Sensor
BMP180
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This precision sensor from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. Because pressure changes with altitude you can also use it as an altimeter! The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins.
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Product
I2C Isolators
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Analog Devices’ family of isolated I2C isolators support a complete isolated I2C interface. This portfolio is based on our iCoupler® chip scale transformer technology. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages compared to optocouplers. By integrating iCoupler channels with semiconductor circuitry, our technology enables a complete, isolated I2C interface with a small form factor. Our I2C isolators covers applications such as central office switching, networking, and power over Ethernet.
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Product
Temperature & Humidity Sensor Breakout Board
Si7021
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Sensor for Silicon labs has ± 3% relative humidity measurements with a range of 0–80% RH, and ±0.4 °C temperature accuracy at a range of -10 to +85 °C. Great for all of your environmental sensing projects. It uses I2C for data transfer so it works with a wide range of microcontrollers.
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Product
SIMRC - 16-Channel 2-Pole Multiplexer
1020-R-16-2-5/1D
Multiplexer Module
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
Lightning Sensor Breakout
SEN-39001
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Breakout board for the AS3935 digital lightning sensor based on the AMS reference design. Includes specially tuned antenna, SPI or I2C interfacing, and a wide 2.4V to 5.5V standard operating range. This innovative sensor is designed to interface with most current development systems and boards, including all current Arduino modules. The breakout board features an inductor (antenna) specially designed for this application, and the board ships fully calibrated. This ensures that you don't have to write a massive back-end to support low-level IC calibration, just focus on your final application!
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Product
SIMRC - 16 x Uncommitted Reed Relay, SPST Screened
1010-R-16-1RF-5/1D
Reed Relay
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
Unipolar D/A Converters
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Analog Devices offers the broadest portfolio of low voltage single-supply d/a converters in the industry, which includes many leading products in performance and package size. A wide variety of applications use ADI precision nanoDAC® products because of their small footprint and robust range of features, including 8- to 16-bit resolution, low power, a fast 50 MHz SPI or 3.4 MHz I2C interface, and more, in a tiny package option. ADI’s nanoDAC+® products offer enhanced features such as higher accuracy, improved dc performance, increased robustness, and lower glitch energy, among other advantages.
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Product
Smart Card Testers
CT1000
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The CT1000 testers are open and configurable to test any kind of communication protocols used on smart cards, and to be updated for new technologies. The systems can test devices that use common standard protocols (as ISO 18000, EPC Global Gen 2, ISO 14443, ISO 15693, MIFARE™, DESFIRE™, FeliCa™, ISO 11784/85, ICode™, Hitag™, ISO 7816, ISO 7813), and are ready to test also the next generation of cards protocols, such as: USB-Keys, MMC, Micro-SD (with and without CPU inside), M-SIM, HD-SIM, SIM-WAVE, and I2C.
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Product
SparkFun Micro OLED Breakout
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The SparkFun Micro OLED Breakout Board breaks out a small monochrome, blue-on-black OLED. It’s "micro", but it still packs a punch – the OLED display is crisp, and you can fit a deceivingly large amount of graphics on there. This breakout is perfect for adding graphics to your next Arduino project, displaying diagnostic information without resorting to serial output, and teaching a little game theory while creating a fun, Arduino-based video game. Most important of all, though, is the Micro OLED is easy to control over either an SPI or I2C interface.
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Product
Multipurpose Debug Board For EC
DB30 x86 Debug Module
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The DB30 x86 Debug Card is designed for debugging of COM Express modules with FFC (FlexFoil Cable) debug connector. It includes an 80 port for Power on and Self-test (POST) via I2C interface, interface to SPI Flash for BIOS update, interface to EC for Embedded Controller (EC) update, Power and Reset buttons, and Status LEDs and Test Point for various debug tests.
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Product
SparkFun GPS Breakout
XA1110 (Qwiic)
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The SparkFun XA1110 GPS Breakout is a small I2C-supported module built for easy hookup, thanks to our Qwiic Connect System. Equipped with the XA1110 GPS module from GTOP, this board utilizes the MediaTek MT3333 chipset, loaded with specialized SparkFun firmware that enables both I2C and serial ports simultaneously. Using I2C means you won’t have to tie up your serial port with GPS, leaving it open to other possibilities.
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Product
Interface
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Renesas offers industry-leading devices to enable efficient and reliable communication for industrial control, networking and computing applications. Dual protocol transceivers, voltage level translators, I2C Buffers, wide operating voltage range RS-232 transceivers, and RS-485/422 devices with the highest noise immunity and ESD protection in small packages are available to support high-speed data transfer and a variety of configurations to fit your applications.
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Product
Mixed Signal Oscilloscopes
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A Mixed Signal Oscilloscope (MSO) is a combination Logic Analyzer and Oscilloscope. Since all inputs sample simultaneously, it is easy to see the timing relationships of the digital and analog components of your circuit. The extra channels also allow for more complex triggering. All of our MSOs have Oscilloscope triggering, Logic Analyzer triggering, SPI triggering and I2C triggering.
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Product
PCI-X Carrier For AMC Modules
PCI102
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The PCI102 allows testing of AMC.1, AMC.2 and AMC.3 modules in a PC environment during development and manufacturing; reducing the costs associated with maintaining different platforms. The PCI101 is a PCI-X edge style carrier with PCIe x4 lanes going to the AMC module. The AMC.1 module connects to the host PC’s PCI-X bus via a PCI-X to PCI ebridge. The AMC.2 module’s GbE ports are routed to RJ-45s. The AMC.3 differential pairs are routed to two SATA connectors. ThePCI102 is available with an optional VT001 IPMI controller which can test the AMC IPMI management functionality. The dual I2C bus connectors allow for connecting any I2C bus to any other I2C bus as well as being able to debug and monitor the I2C bus traffic. Provides two current sense resistors to measure the payload power as well as the management power of the AMC. The PCI102 can be powered on the bench without the host PC.
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Product
Negative Tester
I2C
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telos EDV Systementwicklung GmbH
The most common use of an I2C interface is to send and receive data in compliance with the I2C specification. This implies that the device we are talking to is known to conform to the I2C standard, as well.
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Product
SparkFun Qwiic EEPROM Breakout
512Kbit
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The SparkFun Qwiic EEPROM Breakout is a simple and cost effective option to add some extra storage space to any project. With 512 kilo-bits (or 64 kilo-bytes) of storage, this product is great for any microcontroller that doesn't have any EEPROM storage space, like the SAMD21. You can use the Qwiic EEPROM for storing data like GPS waypoints and other user settings that need to be maintained between sketch uploads. The SparkFun Qwiic EEPROM has three address jumpers, allowing for up to eight EEPROMs on one bus. All communication is enacted exclusively via I2C, utilizing our handy Qwiic system (as the name implies). However, we still have broken out 0.1" spaced pins in case you prefer to use a breadboard.
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Product
400 Watt DC/DC Converter, 3U VPX, Holdup Time
VPX68
DC Converter
NAI's VPX68 is a rugged and high-efficiency 400-Watt Output +28 VDC Input 3U VPX DC/DC converter designed for aerospace, defense, and industrial markets. It is an off-the-shelf power supply with optional integrated Holdup Time that plugs directly into a standard VITA 62 conduction cooled chassis. The power supply, engineered to meet harsh environmental conditions, includes continuous Background Built-In-Test (BIT), I2C communication, remote error sensing, and protection against Input transients, over-voltage, over-current, and short-circuits, ensuring reliable and consistent performance.
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Product
Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-H
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Breakout board for the Sensirion SHT31-DIS-B. This sensor is an extremely accurate digital (I2C interface) temperature and humidity sensing device, with +/-0.2C temperature and +/-2% humidity accuracy typical. These specs far exceed the accuracy of ICs that came before it, including the HTU2x and SHT1x series, and improves upon the success of the SHT2x that came before it. In addition, the SHT31-DIS-B has a wide input voltage range of 2.4V-5.5V and includes temperature isolation and airflow cutouts as recommended for the optimal operation. Finally, in the case of environmental changes that could cause light condensation, the SHT31-DIS-B has a built-in heater to burn off any condensate.
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Product
SIMRC - SMB RF Adapter PCB
1092-001
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Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
SparkFun GPS Breakout
ZOE-M8Q (Qwiic)
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The SparkFun ZOE-M8Q GPS Breakout is a high accuracy, miniaturized, GPS board that is perfect for applications that don't possess a lot of space. The on-board ZOE-M8Q is a 72-channel GNSS receiver, meaning it can receive signals from the GPS, GLONASS, BeiDou, and Galileo constellations. This increases precision and decreases lock time and thanks to the onboard rechargable battery you'll have backup power enabling the GPS to get a hot lock within seconds! Additionally, this u-blox receiver supports I2C (u-blox calls this Display Data Channel) which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
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Product
SparkFun Grid-EYE Infrared Array Breakout
AMG8833 (Qwiic)
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Get ready to be able to see like the Predator! The SparkFun Grid-EYE Infrared Array Breakout board is an 8x8 thermopile array, meaning you have a square array of 64 pixels capable of independent temperature detection. It’s like having a thermal camera, just in a lower resolution. To make it even easier to to get your low-resolution infrared image, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
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Product
SparkFun Photodetector Breakout
MAX30101 (Qwiic)
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The SparkFun Photodetector Breakout is an updated version of the SparkFun Particle Sensor Breakout includes the MAX30101, a highly sensitive optical sensor and successor to the MAX30105 and MAX30102. The MAX30101 Breakout utilizes a photon detector to measure the amount of returning light that is reflected back from the LEDs. This is useful for various applications like particle (i.e. smoke) detection, proximity measurements, and even photoplethysmography. To make it even easier to use this breakout, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system. However, we still have broken out 0.1" spaced pins in case you prefer to use a breadboard.
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Product
In-Circuit Programmer/Loader
SKU-018-01
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The In-Circuit Programmer/Loader (“EasyLoader” or “eLoader”) is a standalone device that was designed to provide a flexible and cost-effective solution for electronic device manufacturers, as well as for hardware design companies and their customers. It allows you to upgrade code on any JTAG/SPI/I2C compliant device (like FPGA/CPLD/EEprom/Flash, etc.) or Microcontrollers at any time of development, testing or production.
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Product
RX Family Of 32-bit High Power Efficiency MCUs
RX700
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The RX700 Series is the flagship of the RX Family with outstanding performance at up to 240MHz CPU performance, power efficiency, and connectivity. It offers up to 4MB of embedded flash memory, integrates rich peripherals such as Ethernet, USB, CAN, I2C, SSI and HMI function. The RX700 Series is an ideal fir for high end application in industry, office automation and other areas, where performance really matters.
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Product
Dual Wide Range Power Monitor
LTC2992
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The LTC®2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply’s current and power is added for total system consumption. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces current consumption to 25μA typically.
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Product
SparkFun LED Driver Breakout
LP55231
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The SparkFun LP55231 LED Driver Breakout is a self-contained solution for developing and deploying the nine-channel I2C LED controller. Remarkably simple, the breakout is equipped primarily with just the LP55231 LED controller IC, plus three RGB LEDs. It also features pads and jumpers for replacing the onboard LEDs with external ones, and configuring the I2C bus, which allows you to daisy-chain up to four LP55231s. This breakout drives the LEDs using Pulse Width Modulation (PWM), so it is well-suited for variable intensity and color-mixing applications!
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Product
SIMRC - 8 x 2 Matrix 2-Pole
1030-R-8-2-2-5/1D
Matrix Switch Module
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
Module Spectrum
nRF52833 Series
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Nordic nRF52833 solutioin features an Arm Cortex-M4 processor with 512 KB Flash and 128 KB RAM. Supports SPI, UART, I2C,I2S, PMD, PWM, ADC, NFC and USB interfaces
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Product
Intel® Atom™ E3825 & Celeron® N2930 Pico-ITX SBC, DDR3L, 18/24-Bit LVDS, VGA, DP/HDMI, 1 GbE, Full-Size Mini PCIe, 4 USB, 2 COM, SMBus, I2C, MSATA & MIOe
MIO-3260
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Embedded Intel® Atom™ E3825 & Celeron® N2930 up to Quad-Core processor design, DDR3L 1333MHz support up to 8GBIntel Gen 7 DirectX®11.1 support, Dual Independent display: 18/24bit LVDS, VGA, DP/HDMIFlexible design using integrated multiple I/O: MIOe to approach vertical applications & keep domain knowhowIntel GbE support, Rich I/O interface with 2 COM, 1 SATA, 4 USB 2.0, GPIO,SMBus, I2C, and MIOe expansion interfaceSupports iManager, SUSI APIs, WISE-DeviceOn and Edge AI Suite
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Product
USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device
781964-02
Interface Module
The NI USB‑8452 is a master interface for connecting to and communicating with inter-integrated circuit (I2C) and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8452 is a bus-powered, portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices, toggling LEDs, or strobing convert and data ready lines common to analog converter chips. You can physically place the USB‑8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.





























