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
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
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 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
USB Protocol Analyzers
Beagle Series
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Our line of Beagle Protocol Analyzers provide real-time visibility into I2C, SPI, and USB systems making them ideal tools for embedded engineers.The Beagle analyzers provide high-performance bus monitoring in a small, portable package that includes cross-platform software support making it perfect for engineers in the field and in the lab.
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Product
500 Watt DC/DC Converter, 3U VPX, VITA 86 High Altitude
VPX57C
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NAI's VPX57C is a rugged and high-performance 500-Watt Output +270 VDC Input 3U VPX DC/DC converter designed for aerospace, defense, and industrial markets. It is an off-the-shelf power supply ideal for high altitude operations such as orbit launch vehicles or Fighter-Grade applications that plugs directly into a standard VPX conduction cooled chassis utilizing a VITA 86 connector. The power supply, engineered to meet extremely harsh environmental conditions, features 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
SparkFun IR Array Breakout
55 Degree FOV, MLX90640 (Qwiic)
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It's time to say hip hip array for this IR Breakout! The MLX90640 SparkFun IR Array Breakout is equipped with a 32x24 array of thermopile sensors creating, in essence, a low resolution thermal imaging camera. With this breakout you can detect surface temperatures from many feet away with an accuracy of ±1.5°C (best case). To make it even easier to get your 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 Environmental Combo Breakout
CCS811/BME280 (Qwiic)
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The SparkFun CCS811/BME280 Environmental Combo Breakout takes care of all your atmospheric-quality sensing needs with the popular CCS811 and BME280 ICs. This unique breakout provides a variety of environmental data, including barometric pressure, humidity, temperature, TVOCs and equivalent CO2 (or eCO2) levels. 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
Digital Demultiplexers
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Advanced Science and Novel Technology, Co., Inc.
24:48 digital demultiplexer (DMUX) with SSTL1.5 input and output interfaces.Supports data rates from 1.0Mbps to 2.0Gbps.User-controllable independent internal delays for data and clock signals.1.5V I2C control interface with a user-defined 3-bit chip address.Preset function for synchronization of multiple parallel devices.Full-rate output copy of external high-speed clock input signal.Two pairs of clock divided-by-2 and synchronous clock enable outputs for supporting the tree-type demultiplexation structure.Additional synchronous clock divided-by-4 output.Dual power supply of +3.0V and +1.5V.Industrial temperature range.Low power consumption of 2.1W at 2.0Gbps.Available in custom 256-pin BGA package (13mm x 13mm x 2.5mm).
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Product
SIMRC - 8 x Reed Relay Module, SPST
1010-R-8-1-5/1D
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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 & Digital Pattern Generator
ScanaQuad Series
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ScanaQuad (SQ) is a series of high performance 4 channels logic analyzers and digital pattern generators. They are designed to be your best companion when working on serial protocols like UART, SPI, I2C, 1-Wire, USB, I2S, CAN, LIN, RS232, RS485, and more. With ScanaQuad Logic Analyzers, you can capture signals, you can play them back, and you can even build genuine test signals and generate them!
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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
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
Interface Adapter
DMX-10
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DMX-10 is, all-in-one ready to use PCIEx to I2C/SPI/GPIO Interface adapter based on system with FPGA and 1x PCIEx PHY. DMX-10 converts PCIEx transactions into the I2C, SPI master or slave transactions and GPIO control functions. DMX-10 turns your PC running Windows, DOS, Linux, MacOS or any embedded OS with PCI support into comprehensive general purpose bus master or slave adapter.
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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
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
Soil Moisture Sensor
Modbus RS485
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This is a contact-less capacitive soil moisture sensor, a continuation of my I2C soil moisture sensor. This particular version of the sensor is suited for more professional installations where long cable runs is a requirement. It adds a local voltage regulator to mitigate the voltage drop and RS485 transceiver to accommodate long wires, also reverse polarity and an additional ESD protection level is added.
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Product
Function Generators
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Respective dual channels function/arbitrary waveform generator. Sine wave output up to 160MHz, full-band resolution of 1μHz. Pulse waveform up to 50MHz (or 40MHz), adjustable time of rising, falling and duty ratio. Sampling rate of 500MSa/s and vertical resolution of 16bit. 6-bit high-precision frequency meter compatible with TTL level signal. Arbitrary wave storage of 8~32M points, 7GB non-volatile waveform storage. Multi modulation function::AM,FM,PM, ASK,FSK,PSK, BPSK, QPSK,OSK,PWM, QAM, SUM . 16bit digital arbitrary wave (TTL level) DARB. 16th Harmonic Generation Function. Protocol output: I2C, SPI, UART (TTL level). 8 Inch high-resolution TFT color LCD,WVGA(800×480). Standard interface: USB Host, USB Device, LAN, 10MHz clock source input/output. Frequency sweep and burst output. Easy-to-use multi-functional knob and numeric keypad
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Product
Smart Card Reader
UTC-510P-S01E
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Memory card -Synchronous 2-line, 3-line and I2C interface. CPU card -Complies with ISO7816-1,2,3,T=1 and T=0 protocol. Reliability: 200,000 cycles.
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Product
SparkFun GPS Breakout
NEO-M9N, Chip Antenna (Qwiic)
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The SparkFun NEO-M9N GPS Breakout with on-board chip antenna is a high quality GPS board with equally impressive configuration options. 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 witn ~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 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 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
Multipurpose Debug Board
DB40-HPC Debug Module
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The DB40-HPC Debug Card is designed for debugging of COM-HPC 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
Qwiic Connect System
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An ecosystem of I2C sensors, actuators, shields, and cables that make prototyping faster and less prone to error.
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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
Multi Protocol Analyzer
LE-2500R
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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 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
SIMRC - RS232 to I2C Converter PCB
1080-001
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Pickering Interfaces Series 1000 SIM Reed Relay Cards offer a choice of switching configurations using low cost industry standard SIM connectors. They are ideal for placing switching systems in fixtures close to the unit under test.
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Product
ARM LPC2294 Based Board
MS 2500
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- JTAG interface- Boot Flash interface- External Flash interface for data storage- External Bus interface- SPI Interface- I2C interface- Serial port interface- CAN Interface- LPC2694 based processor board- MIL1553B Bus Interface (Dual Redundancy)
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Product
Multi-protocol USB Type-C Analyzer
Type-C Tracker
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Protocol and Electrical Analysis Tool for Type-C Communications Standards. All-in-One: Concurrent and tightly synchronized capture of USB Power Delivery protocol, Type-C voltage tracking (Vconn, Vbus, SBU, and CC), USB 2.0, Thunderbolt 3 UART and DisplayPort auxiliary (AUX) signaling over the Type-C SBU lines, alternate (ALT) mode support for DisplayPort, HDMI, and Thunderbolt, and capture and decoding of Serial Wire Debug (SWD) protocol, UART, Serial Peripheral Interface (SPI) I2C vendor-specific protocols, and Type-C Port Controller Interface traffic over I2C.
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Product
Open Standard Module (OSM)
ROM-2860
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Advantech ROM-2860 OSM 1.1 Computer-on-Module is powered by Qualcomm QCS6490/5430 SoC which includes up to Arm v8 Cortex® in combination with Andreo GPU 643 and Andreo VPU 633 graphics engine. It provides PCIe, USB 3.2, Giga Ethernet, MIPI-CSI, I2C, SPI, GPIO, PWM and eDP, DP, MIPI-DSI display for embedded applications.
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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.





























