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
RS232 I2C Adapter
12C Master
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*I2C frequency adjustable up to 400kHz*I2C level shifter, I2C level from 2V to 15V*Interrupt input for external events*Simple software interface (ASCII commands)
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Product
Multi Interface USB Adapter
SUB-20
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SUB-20 is a versatile and efficient bridge device providing simple interconnect between PC (USB host) and different HW devices and systems via popular interfaces such as I2C, SPI, MDIO, RS232, RS485, SMBus, ModBus, IR and others. It is also a full "any to any" converter between all supported interfaces and I/O features. SUB-20 is a powerful I/O controller with 32 GPIO, 8 Analog Inputs, PWM Outputs, Edge DEtectors, LCD, Leds and push buttons.SUB-20 system includes SW package containing driver, API Library, GUI and Command Line based applications, C,C++,C#,VB.net, MATLAB, LabView sample code and documentation. SUB-20 can be used with PC 64/32 bit running Windows 2000/XP/Vista/Win7/Win8, MacOS, Unix/Linux and DOS.Working with SUB-20 does not require deep knowledge of low layers of the specific interface. All you need to do is to call right API function at the right place. And this is really very easy as API functions are well documented and "exampled". API set is relatively small but comprehensive.SUB-20 is equipped with status Leds, optional LCD and buttons. All this guarantee fast and comfortable development, field debugging and maintenance of applications including option of standalone operation.
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Product
InfiniiVision Oscilloscopes
2000 X-Series
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70 MHz to 200 MHz See more signal detail with 50,000 wfms/s update rateView time-correlated digital content with 8 digital channels (MSO)Modulate signals within the scope with WaveGen, built-in 20 MHz function generator (optional)Quickly characterize signals with the built-in 3-digit voltmeter and 5-digit counter option Decode serial busses faster with hardware-based serial analysis options for CAN, LIN, I2C, SPI and RS232/422/485/UART Protect your investment with full upgradability
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Product
SIMRC - 8 x 2 Matrix 1-Pole
1030-R-8-2-1-5/1D
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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
Logic Analyzer
LAP-321000U-A
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Zeroplus Technology Corperation
Sample rate (Internal clock): 200MHz asynchronous operation. Sample rate (External clock): 100MHz synchronous operation. Memory Depth (per channel): 1MbitsChannels: 32CH. Upgrade Oscilloscope to measure and decode I2C / UART (RS232C & RS485) / SPI Protocols and mixed signals. Glitch Capture Capability: 5ns. Bandwidth: 75MHz.
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Product
Si1145 UV / Ambient Light / Proximity Sensor
SEN-36002
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SEN-36002 is a highly integrated carrier board designed for the Si1145 UV, Ambient Light and Proximity sensor IC from Silicon Labs. This sensor has 100mLUX resolution, and has a dynamic range of 1 LUX to 128 kLUX with IR correction. This means that whether your application is indoors in poor lighting conditions or outside in full sunlight, this sensor has you covered. In addition, we added a high power LED (150mA max, 20 degree) to take full advantage of the proximity sensing capability of this IC - something you won't see on most competitive carrier boards. Integration is easy with 4 x 4-40 sized mounting holes at the corners of the PCB and signal translation to handle interface voltages from 3V to 5V. The board is interfaced via an I2C interface and function pins have been broken out to a 0.1" pin header. The INT pin is also broken out for interrupt capability.
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Product
USB-8451, 250 kHz I2C, 12 MHz SPI I2C/SPI Interface Device
779553-01
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The NI USB‑8451 is a master interface for connecting to and communicating with inter-integrated circuit (I2C), System Management Bus (SMBus), and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8451 is a 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 or toggling LEDs. The USB‑8451 can be physically located more closely to I2C/SPI devices than PCI interfaces, reducing I2C bus length and minimizing noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
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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
SparkFun Human Presence Sensor Breakout
AK9753 (Qwiic)
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This is not your normal Passive Infrared (PIR) sensor! The SparkFun AK9753 Human Presence Sensor Breakout is a Qwiic-enabled, 4-channel Nondispersive Infrared (NDIR) sensor. Each channel has a different field of view, so not only can the AK9753 detect a human, but it can also tell which direction the person is moving. 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
Electrical Interface
QSFP-DD 200G
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Eoptolink Technology Inc., Ltd.
QSFP-DD 200G Eoptolink’s EOLD-162HG-E-10-1 QSFP-DD CWDM4, 8x25G Optical transceiver module are designed for use in 200 Gigabit links over 10km singlemode fiber. They are compliant with the QSFP-DD MSA. Digital diagnostics functions are available via the I2C interface, as specified by the QSFP-DD MSA.
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Product
I2C High Speed Interface for USB
telos Tracii XL
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telos EDV Systementwicklung GmbH
Tracii XL is the outstanding I2C Adapter featuring the I2C high-speed specification running the I2C bus with up to 2 Mbit/s. Additionally Tracii XL can work as an I2C monitor.
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Product
Grid-EYE High Performance Type
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Panasonic Industrial Devices Sales Company of America
Panasonic's Grid-EYE® Series High-Performance Type is an 8x8 (64) pixel Infrared Array Sensor. This Sensor offers digital output (I2C) for thermal presence, direction, and temperature values. The built-in lens includes a 60-degree viewing angle. The Grid-EYE Sensor features compact SMD design using MEMS thermopile technology. This Sensor offers several advancements over the original Grid-EYE, including higher accuracy, enhanced resolution, and longer detection distance for true next-generation performance.
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Product
SparkFun Pulse Oximeter And Heart Rate Sensor
MAX30101 & MAX32664 (Qwiic)
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The SparkFun Pulse Oximeter and Heart Rate Sensor is an I2C based biometric sensor, utilizing two chips from Maxim Integrated: the MAX32664 Biometric Sensor Hub and the MAX30101 Pulse Oximetry and Heart Rate Module. While the latter does all the sensing, the former is an incredibly small and fast Cortex M4 processor that handles all of the algorithmic calculations, digital filtering, pressure/position compensation, advanced R-wave detection, and automatic gain control. We've provided a Qwiic connector to easily connect to the I2C data lines but you will also need to connect to two additional lines. This board is very small, measuring at 1in x 0.5in (25.4mm x 12.7mm), which means it will fit nicely on your finger without all the bulk.
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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
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 16 Output I/O Expander Breakout
SX1509
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Are you low on I/O? No problem! The SX1509 Breakout is a 16-channel GPIO expander with an I2C interface – that means with just two wires, your microcontroller can interface with 16 fully configurable digital input/output pins. But the SX1509 can do so much more than just simple digital pin control. It can produce PWM signals, so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. This breakout is similar to a multiplexer or "mux," in that it allows you to get more IO from less pins. And, with a built-in keypad engine, it can interface with up to 64 buttons set up in an 8x8 matrix.
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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
Bridge Device and GPIO Port Expander
SPI-to-I2C
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The CP2120 compact SPI-to-I2C bridge and general purpose port expander device can be easily added to a system to solve interface compatibility problems and add more GPIO when required.
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Product
Qwiic Pressure/Humidity/Temp (PHT) Sensor - MS8607
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The MS8607 from TE is an impressive combination pressure, humidity, temperature (PHT) sensor with accuracy of ±2mbar pressure, ±3% humidity, and ±1°C. Perfect for sensing general weather conditions the MS8607 really shines for high altitude, low pressure applications. Capable of sensing down to 10mbar, this pressure sensor separates itself from many other I2C pressure sensors like the BME280. The MS8607 is simple to use and gives the user some very powerful readings with very little power and conversion time.
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Product
Small outline PCB with 72 Pin Socket
1091-001
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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
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
SparkFun MicroMod Environmental Function Board
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The SparkFun MicroMod Environmental Function Board adds additional sensing options to the MicroMod Processor Boards. This Function Board includes three sensors to monitor air quality (SGP40), humidity & temperature (SHTC3), and CO2 concentrations (STC31) in your indoor environment. To make it even easier to use, all communication is over the MicroMod's I2C bus!
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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
SparkFun Humidity And Temperature Sensor Breakout
Si7021
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The Si7021 is a low-cost, easy-to-use, highly accurate, digital humidity and temperature sensor. This sensor is ideal for environmental sensing and data logging and perfect for build a weather stations or humidor control system. All you need are two lines for I2C communication, and you’ll have relative humidity readings and very accurate temperature readings as a bonus!
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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
Training Board
JT 2156
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The JT 2156 training board has been devised to demonstrate all the latest features and test techniques available to users of JTAG Technologies’ ProVision & JTAG Live application development systems. As well as a modern ARM Core processor, the design also includes an Altera Cyclone FPGA, DDR Memory, Ethernet PHY, and several SPI and I2C peripheral parts. The JT2156 is shipped with a comprehensive self-study manual for getting to know the in-depth features of ProVision and/or JTAGLive Studio. For Altium users the design also serves as an example of how to adapt the Nano board into a realistic custom design.
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Product
Gyroscope Module 3-Axis L3G4200D
27911
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The Gyroscope Module 3-Axis L3G4200D provides raw angular rate and temperature data measurements that are accessed from the selectable digital I2C or SPI interface. The small package design and SIP interface accompanied by the mounting hole make the sensor easy to integrate into your projects. Designed to be used with a variety of microcontrollers, the module has a large operating voltage window.
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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.
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Product
SparkFun Qwiic Thermocouple Amplifier
MCP9600 (Screw Terminals)
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The MCP9600 Breakout is a high accuracy Thermocouple Amplifier equipped with an I2C interface, accessed over our Qwiic system. Inside the chip are two temperature sensors, one for the thermocouple itself (the hot junction) and one for the chip itself (the cold junction). As a result, the MCP9600 can read both the ambient temperature and the temperature of whatever you're trying to measure! The MCP9600 can do both with a resolution of 0.0625°C, and an accuracy of ±1.5°C (worst-case). The MCP9600 Thermocouple Amplifier is one of our many Qwiic compatible boards! Simply plug and go. No soldering, no figuring out which is SDA or SCL, and no voltage regulation or translation required!
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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.





























