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
I2C Protocol Analyzer
EasyI2C
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It's simple to find an I2C-style bus within arm's reach. Every computer, monitor, television and cell phone has it. Most microcontrollers directly support this protocol as well. Even so, the I2C protocol has many subtle nuances that are hard to grasp and easily forgotten. EasyI2C (TM) helps you to figure out exactly what is happening, without having to examine huge waveform trace capture files or set up complex tests.
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Product
I2C Soil Moisture Sensor
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Capacitive soil moisture sensor interfaced via I2C. Additionaly provides ambient light and temperature readings. Open Source Hardware. Soil moisture sensing, Light sensing, Temperature sensing.
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Product
1000W to 2500W- Single Output
RFE Series
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*1U High*Internal ORing FETs and Current Share*High Efficiency*I2C, PMBus™ Communication option
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Product
Efficient All-In-One Test Solution for Low-Cost IoT Devices
KT RFCT 2400
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The low price point creates a cost effective means for testing wireless communication units, while generating a favorable cost to performance ratio.The calibrated RF test system has a small footprint, integrating seamlessly into test system infrastructures via a single Ethernet connection. GPIOs control the DUT and peripherals. The test system enables communication interfaces like SPI, I2C, UART and CAN. Simple Go/No-Go tests can be performed in parallel. The KT-RFCT 2400A features a 70 MHz to 6 GHz frequency range and includes non-signaling and signaling connections. Bluetooth signaling standards are supported up to 4.1 as well as BT-LE. WIFI signaling standards supported are a, b, g, n and ac.The KT-RFCT 2400A is the perfect test system for a wide range of applications, such as Bluetooth, Infotainment, Keyless Entry, Tire Pressure Measurement, GPS and WIFI.
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Product
Pico-ITX SBC With Intel® Atom® X5-E3940 Processor, DisplayPort, LVDS, 2 GbE LAN And Audio
PICO319
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The PICO319 is powered by the onboard Intel® Atom® x5-E3940 quad-core processor. The noise-free pico-ITX motherboard offers combinations of ruggedness, high computing capabilities and enhanced graphics capability in an extremely compact size of only 100 x 72 mm. Moreover, the board features 12V DC power supply input with AT Auto Power On function. A dual-display capability is available through DisplayPort and 18/24-bit single/dual channel LVDS ports. For extensive storage needs, this compact embedded motherboard has one M.2 Key B slot (22 x 42 mm or 30 x 42 mm) for SATA or PCIe x2 SSD card and one half-size PCI Express Mini Card slot in support of mSATA. The Intel® Atom®-based pico-ITX board comes with rich I/O connectors, including two USB 2.0 ports, two USB 3.0 (USB 3.1 Gen1) ports, one RS-232/422/485 port, one RS-232 port, one HD Codec audio, and 4-channel digital I/O. It also supports SMBus that is compatible with I2C for smart battery support. The PICO319 offers watchdog timer and hardware monitoring function for reliable operation.
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Product
Engine Control
StepGenerator4
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*4-axis stepper motor control *Clock and direction signals *Speed up to 100,000 steps / s Positioning range +/- 2,147,483,647 steps *Simple ASCII commands via the serial interface *I2C adapter (master) for controlling external actuators / sensors *40-pin DIP package PCB (600mil / 19mm x 52mm).
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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
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
SparkFun Distance Sensor Breakout
4 Meter, VL53L1X (Qwiic)
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This SparkFun Distance Sensor Breakout utilizes the VL53L1X next generation ToF (Time of Flight) sensor module to give you the highly accurate measurements at long ranges for its size. The VL53L1X 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 40mm to 4m 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
Bus Analyzer, Exerciser, Emulator, and Programmer
CAS-1000-I2C/E
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While the I²C interface seems simple on the surface, this straightforward architecture is not immune to intermittent glitches, device misbehaviors, and protocol violations. Likewise, tracking down these errors can be tedious business if the right tool is not utilized.The CAS-1000-I2C/E bus analyzer is an exceptional tool for pinpointing I2c irregularities. The ability to spot complex problems and identify invisible obstacles make it the preferred I²C development solution. Advanced logging, debugging, emulation, and verification capabilities offer power and versatility, yet the Windows-based user interface makes the most complex features simple to use.The CAS-1000-I2C/E succeeds where simple monitoring and interactive I/O tools fall short—a complete solution to monitoring, emulating, stressing, and characterizing I²C and SMBus interfaces.
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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 MicroMod GNSS Carrier Board (ZED-F9P)
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With GNSS you are able to know where you are, where you're going, and how to get there anywhere on Earth within 30 seconds. This means the higher the accuracy the better! GNSS Real Time Kinematics (RTK) has mastered dialing in the accuracy of their GNSS modules to just millimeters, and that's why we had to put it on this board! With the flexibility of the MicroMod's M.2 connector, you can easily test and swap out different MicroMod processor boards for your application. Simply match up the key on your board's beveled edge connector to the key on the M.2 connector and secure the boards with a screw. This means solderless access to the ZED-F9P modules features via UART1, UART2, SPI, and I2C ports!
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Product
ARM 9 System on Module
MS 1515
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- Processor: LPC3250 processor with ARM 9 core running at 266 MHz SDRAM- Memory: DDR2 256 MB (scalable to 512 MB)- Flash Memory: NAND flash 512 MB- Display & Graphics: Programmable color LCD controller supports up to a TFT interface- Touch screen: Integrated touch screen controller- Network Support: 10/100 Base-T Ethernet PHY- PC Interface: One USB 2.0 high-speed On-the-Go interface- Serial Interfaces: Up to four external UARTs- + CAN 2.0B controller- + Three I2C ports- + Three SPI ports- GPIO: Programmable I/O depending on peripheral requirements- Mechanical: 60 mm wide x 60 mm long x 5.4 mm high
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Product
Multi Protocol Analyzer
LE-3500R
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LE-3500R/LE-2500R adopted TTL port as its standard besides RS-232C, RS-422, and RS-485 while having the same feature such as small and light body of LE-3500/LE-2500. You can monitor I2C or SPI without expansion board.
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Product
SparkFun Qwiic Single Relay
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Have you ever wanted to control something powerful or have you ever needed to turn on/off a high power device from your Arduino or another low powered microcontroller? The SparkFun Qwiic Single Relay provides you with the easiest to use relay yet. The Single Relay board can handle up to 5.5A at 240VAC for long periods of time and allows you to control large power loads with simple I2C commands. Utilizing our handy Qwiic system, and on-board screw terminals, no soldering is required to connect it to the rest of your system!
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Product
SparkFun Qwiic Micro:bit Breakout
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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. 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
ContactLAB Spy
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Laboratory class spy and protocol analyzer for easy, non-intrusive capture and analysis of communication between contact cards and readers using SWP, ISO 7816, SPI and I2C protocols.
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Product
SparkFun Digital Temperature Sensor Breakout
TMP102
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The TMP102 is an easy-to-use digital temperature sensor from Texas Instruments. The TMP102 breakout allows you to easily incorporate the digital temperature sensor into your project. While some temperature sensors use an analog voltage to represent the temperature, the TMP102 uses the I2C bus of the Arduino to communicate the temperature. Needless to say, this is a very handy sensor that doesn't require much setup.
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Product
Extension Module
GE-AI-4
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Infinite Industrial Informatics Lt
GE-AI-4 is a DIN rail mount, analog input expansion module with I2C serial communication interface. It can be used for the analog input expansion of Infinite's products as the SCOM-100 GSM controller and the iLOGPlus RTU/Data Logger.
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Product
USB I2C Adapter
MS (Master & Slave)
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*Plug & Play*No additional driver necessary*HID device drivers are included in major operating systems*Open interface description enables communication without a DLL
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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
Micsig Smart Oscilloscope
STO1000C/E
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Shenzhen Micsig Instruments Co., Ltd.
*Up to 70Mpts memory depth, Zoom into a selected part of the captured waveforms to get more details. *Support serial triggering and decode (I2C, SPI, RS232/UART,CAN, LIN) and Aerospace and defence (MIL-STD 1553, ARINC 429). Two formats to display decoding, text and graphic.
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Product
1Gsps, 18 Channel, Logic Analyzer with Protocol Analyzer plugins and Hardware Compression
DigiView™ DV518
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- Physical Channels: 18- Sample rate: 4ch@1 Gsps or 9ch@500Msps or 18ch@1Gsps (4 ch. are sampled every 1ns or 9 ch. are sampled every 2ns or 18 ch. are sammpled every 4ns)- Typical capture: 100M transitions (> 1B samples)- Hardware based triggers with 8 universal match circuits, and partitionable 16 stage sequencer- Adjustable Threshold (± 4V)- Real-time, Hardware-based, Adaptive Compression- Channels protected to ± 20V- Ground leads protected to ± 12V- High-quality test leads: 66 strand soft copper wires, flexible insulation, and gold plated connectors. Fit .025 square posts as well as the included clips.- Extra ESD protection- Streaming storage with auto fall-back to Store & Forward mode ensures large storage and reliability.- USB 3.0 (SS) or USB 2.0 (High Speed)- USB powered- Each DigiVIew includes all avialable Protocol Analyzer plugins (including: I2C, SPI, CAN, Async, Sync, 1-wire, I2S, TDM)- Free Plugin Developers' Kit- Requires Windows 7 or greater OS (32bit or 64bit)- Free Lifetime sofware updates.- 1 year warranty
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Product
USB-8451, 250 kHz I2C, 12 MHz SPI I2C/SPI Interface Device
779553-01
Interface Module
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
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
SparkFun Spectral Sensor Breakout
AS7262 Visible (Qwiic)
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The SparkFun AS7262 Visible 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 AS7262 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
Evaluation Board
emPower
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SEGGER Microcontroller GmbH & Co. KG
The emPower eval board provides a comprehensive set of SEGGER's middleware products, accelerating the start of any embedded project. SEGGER's embOS real-time operating system is at the heart of the evaluation. Furthermore, evaluation versions of the file system emFile, graphics library emWin, emUSB Host & Device, and TCP/IP stack embOS/IP (including web server demo) enable full use of the available emPower peripherals. emPower also features a J-Link OB, an on-board version of SEGGER's market-leading debug probe J-Link, which includes drag & drop programming and COM-Port support. There are three expansion interfaces to easily connect additional modules. Each connector provides I2C, SPI, UART, GPIO/timer, analog input and power. A display adapter connector enables the connection of small TFT displays. The emPower board is powered by USB only. Current consumption drawn strongly depends on the application and connected peripherals. Idle consumption is approx. 85 mA.
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Product
Interface Adapter
U2C-12
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Dimax U2C-12, all-in-one USB-I2C, USB-SPI and USB-GPIO Bridge device, converts PC USB transactions to the I2C Master, SPI Master transactions and GPIO functions. U2C-12 turns your PC running Windows, Linux or MacOS into comprehensive I2C/SPI Bus master.
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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
Proximity, Light, RGB, and Gesture Sensor
APDS9960
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Add basic gesture sensing, RGB color sensing, proximity sensing, or ambient light sensing to your project with the Adafruit APDS9960 Proximity, Light, RGB and Gesture Sensor. When connected to your microcontroller (running our library code) it can detect simple gestures (left to right, right to left, up to down, down to up are currently supported), return the amount of red, blue, green, and clear light, or return how close an object is to the front of the sensor. This device uses an I2C interface so it's easy to wire up and use.





























