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
Dual Band Block Up-Converter
DBUC Series
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*Connectorized Package *Wide Choice of Frequency Ranges *Dual Band *Integrated Filters *Gain Control *CAN, RS-232, I2C, or SPI Control *Internal / External References *Low Power Consumption *Low Phase Noise *Low Spurs
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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
Single-Supply Voltage Output D/A Converters
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Analog Devices offers the broadest portfolio of low voltage single-supply D/A converters (DACs) 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
Logic Analyzer
LAP-16128U
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Zeroplus Technology Corperation
Sample rate (Internal clock): 200MHz asynchronous operation. Sample rate (External clock): 100MHz synchronous operation. Channels may be selectively defulted to /Channels: 16 CH. Upgrade Oscilloscope to measure and decode I2C / UART (RS232C & RS485) / SPI Protocols and mixed signals.
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Product
Beagle I2C/SPI Protocol Analyzer
TP320121
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The versatile Beagle™ I2C/SPI Protocol Analyzer is the ideal tool for the embedded engineer who is developing an I2C, SPI, or MDIO based product. The Beagle analyzer provides a high performance bus monitoring solution in a small, portable package. Perfect for engineers in the field and in the lab.
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Product
SparkFun Qwiic Micro:bit Breakout (with Headers)
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The SparkFun Qwiic micro:bit Breakout is a board that connects to the BBC micro:bit and expands the capabilities of the development platform by providing access to more pins and allowing for connections to the I2C and SPI buses. We've already attached headers to this version of the board so you don't need to worry about any soldering! This breakout board for the micro:bit’s edge connector allows intermediate and advanced users to connect the micro:bit to breadboards and other Qwiic sensors, motors, LEDs and more!
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Product
Evaluation Kit
ROM-DK2620
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*NXP Arm® Cortex®-A35 i.MX 8ULP Dual up to 1.0 GHz*1 x Arm Cortex-M33 core*Onboard LPDDR4 1GB, 2000MT/s memory*1 x 4 lane MIPI-DSI*1 x USB2.0, 1 x USB 2.0 OTG, 5 x UART, 2 x I2C, 24 x GPIO, 6 x PWM, 1 x CAN*Support Ycoto Linux
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Product
SparkFun Humidity Sensor Breakout
SHTC3 (Qwiic)
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Looking to keep a log of the climate in your greenhouse, create a humidor control system or want to track temperature and humidity data for a weather station project? The SparkFun SHTC3 Humidity Sensor may be the perfect option for you! The SHTC3 is a low cost, easy-to-use, highly accurate digital humidity and temperature sensor. The SHTC3 communicates via I2C so, as you can tell by the name, we have broken out the pins on the sensor to Qwiic connectors so you can easily connect it to SparkFun's ever growing Qwiic Ecosystem.
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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
I2C Interface for Digital I/O Control
EE301-I2C
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Cable can be used with EE301-I2C or EE301-DCMI Model Numbers only. Cable + Power for Loads & Control Modules / Connects to a PC Parallel Port / Supports (2) Electronics Loads & Control Modules / 6' Power cable & 5' Data cable
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Product
SparkFun Spectral Sensor Breakout
AS7263 NIR (Qwiic)
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The SparkFun AS7263 Near Infrared (NIR) Spectral Sensor Breakout brings spectroscopy to the palm of your hand, making it easier than ever to measure and characterize how different materials absorb and reflect different wavelengths of light. The AS7263 Breakout is unique in its ability to communicate by both an I2C interface and serial interface using AT commands. Hookup is easy, thanks to the Qwiic connectors attached to the board --- simply plug one end of the Qwiic cable into the breakout and the other into one of the Qwiic shields, then stack the board on a development board. You’ll be ready to upload a sketch to start taking spectroscopy measurements in no time.
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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
SIMRC - 8-Channel 2-Pole Multiplexer
1020-R-8-2-5/1D
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
Silicon Oscillators
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Analog Devices silicon oscillators are frequency programmable via pin-strapping, or through the resistor connection or serial interface (SPI or I2C). These solid-state clocks are well-suited for general-purpose usage, such as PGAs, ASICS, microprocessors, or UARTS, and they operate from 1 kHz to 170 MHz. Silicon oscillators are also ideal switching regulator clocks as they provide synchronization and EMI reduction (via spread spectrum).
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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
Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-F
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Breakout board for the Sensirion SHT31-DIS-F with a built-in permeable membrane filter. 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 - 8 x 4 Matrix 1-Pole
1030-R-8-4-1-5/1D
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
SparkFun GPS Breakout
NEO-M9N, SMA (Qwiic)
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The SparkFun NEO-M9N GPS Breakout is a high quality GPS board with equally impressive configuration options including SMA. The NEO-M9N module is a 92-channel u-blox M9 engine GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations with ~1.5 meter accuracy. This breakout supports concurrent reception of four GNSS. This maximizes position accuracy in challenging conditions increasing, precision and decreases lock time; and thanks to the onboard rechargeable 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 makes 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
I2C Bus Monitor
Model JI-210
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The JI-210 is a PC hosted I2C bus monitor used to non-invasivelymonitor and analyze a variety of I2C networks. The desktop unitcaptures and stores up to 32KBs of bus activity including data andaddress values, stop/start, read/write, ACK/NACK, and frame errorevents. Data is displayed as both I2C messages and TimingWaveforms. A Windows software application manages capturedI2C messages, trigger setup, and recording settings.
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Product
µModule Isolated Transceivers
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Analog Devices µModule (micromodule) isolated transceivers provide robust galvanic isolation for digital serial communication interfaces, including SPI, I2C, RS-485/RS-422, RS-232, and USB. Isolation barriers are implemented using Ethernet transformers, coupling capacitors, or embedded inductors. All devices are simple to configure, have very low EMI susceptibility and emissions, and feature high noise immunity to preserve signal integrity.
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Product
SparkFun Altitude/Pressure Sensor Breakout
MPL3115A2
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Life has its ups and downs, so why not measure them? The MPL3115A2 is a MEMS pressure sensor that provides Altitude data to within 30cm (with oversampling enabled). The sensor outputs are digitized by a high resolution 24-bit ADC and transmitted over I2C, meaning it's easy to interface with most controllers. Pressure output can be resolved with output in fractions of a Pascal, and Altitude can be resolved in fractions of a meter. The device also provides 12-bit temperature measurements in degrees Celsius.
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Product
Module Spectrum
nRF52820 Series
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Nordic nRF52820 solutioin features an Arm Cortex-M4 processor with 256 KB Flash and 32 KB RAM. Supports SPI, UART, I2C and USB interfaces
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Product
720W to 1000W - Single Output
CPFE1000FI Series
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*Smaller size than CPFE1000F*Baseplate cooled, no fan required*Protective coating option*I2C Interface*High Efficiency
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Product
Sensor Boards
SensorXplorer™
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Each sensor board can be used together with the SensorXplorer board.The SensorXplorer boards acts as a USB to I2C interface between Vishay's freely available software modules and the sensor boards. The sensor boards also have test pins for the I2C interface, allowing you to connect them to your own platform.
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Product
Transistor Testing
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Radiant is introducing an I2C digital-to-analog converter product that can be attached to the Precision Premier II and is controlled from Vision. The addition of this extra voltage source makes it possible for the Premier II to measure the performance of thin-ferroelectric-film gate transistors (TFFTs and MFSFETs). This document explains the theory for such testing and gives examples of such tests using Radiant's SFRAM transistors as examples.
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Product
Smart Card Reader
UTC-100P-S
Card Reader
International Standard: Comply with PC/SC 1.0 standard and EMV L1. CPU Card: Comply with ISO7816-1,2,3,T=1 and T=0 protocol. Memory Card: Synchronous 2-line, 3-line and I2C interface.
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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
SparkFun Triple Axis Digital Accelerometer Breakout
ADXL313 (Qwiic)
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The SparkFun ADXL313 Breakout is a low power, high resolution (up to 13-bits) 3-axis accelerometer for measurement up to ±4g. This breakout measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Digital output data is formatted as 16-bit two's complement and is accessible through the on-board Qwiic connectors (I2C) or SPI.
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Product
DataComm
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SCHILLER AUTOMATION GmbH & Co. KG
With ever-growing performance, accuracy, and precision required by 112G/800G PAM4 solutions, Wilder has designed a robust HCB and MCB fixtures to support OSFP-XD, QSFP-DD, OSFP and SFP-DD compliance testing. In addition, CMIS_GUI Software provides: Displays of many of the settings and Controls in the Module including Lane States, Module Power States and Optical Power. Alarms and Warnings for Module Temp and Vcc and Optical Power Controls for Module Power, Margins, and read access to Descriptors and Data Path Configuration. Direct Read/Write access to the I2C and CMIS Memory Map as well Scripts that directly access the CMIS Memory Map Registers.
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Product
SparkFun Distance Sensor
1.3 Meter, VL53L4CD (Qwiic)
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This SparkFun Distance Sensor Breakout utilizes the VL53L4CD next generation ToF (Time of Flight) sensor module to give you the highly accurate measurements at short ranges for its size. The VL53L4CD from STMicroelectronics uses a VCSEL (Vertical Cavity Surface Emitting Laser) to emit an infrared laser to time the reflection to the target. That means that you will be able to measure the distance to an object from 1mm to 1300mm away with millimeter resolution! To make it even easier to get your readings, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system so 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.





























