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
SparkFun LiPo Fuel Gauge
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LiPo batteries are a great way to power your projects. They're small, lightweight, and pack a pretty good punch for their size. Unfortunately, even the best batteries eventually run low on power and when they do it's often unexpected (and at the worst time). Don't be caught by surprise next time your board suddenly powers-down! The SparkFun LiPo Fuel Gauge connects your battery to your project and uses a sophisticated algorithm to detect relative state of charge and direct A/D measurement of battery voltage. In other words, it tells your microcontroller how much 'fuel' is left in the tank. The LiPo Fuel Gauge communicates with your project over I2C and an alert pin also tells you when the charge has dropped below a certain percentage.
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Product
Clock and Data Recovery/Retiming
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Analog Devices provides single rate, multiple rate, and continuous tuning clock and data recovery (CDR) ICs for metro, long haul, DWDM, FSO, instrumentation, and other applications. Our any rate CDR ICs allow easy integration into protocol agnostic applications, automatically locking onto incoming data streams at any rate, from 10 Mbps to 2.7 Gbps or from 6.5 Mbps to 11.3 Gbps, without the aid of a reference clock while reporting the acquired data rate over the I2C interface. With a proprietary dual loop design, our any rate CDR ICs feature fast locking with superior jitter performance.
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Product
Hall Sensor Board with I2C Interface
046-322
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Version: +5V/15A +12V/5A -5V/15A -12V/5A The Hall-Sensor Board is the right accessory for your system in combination with the Elma SysMon. It's possible to measure up to 4 currents and to monitor them with the Elma SysMon 3 Gen.
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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 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
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
IP Core and FPGA Products
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Our FPGA offerings include development boards and IP cores for Altera FPGA devices. The IP cores include: I2C, PCIe, JPEG-LS, LVDS Camera Link and memory controllers.
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Product
Smart Card Reader
UTC-100P-S
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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
QSeven
ROM-7510
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*TI Sitara AM5728 Dual core cortex-A15 1.5GHz high performance processor*Onboard DDR3 memory 2 GB and eMMC Flash 8 GB*Support 1 LVDS, 1 HDMI, 1 USB2.0 OTG, 4 USB2.0 HOST, 1 USB3.0,2 UART, 1 CAN, 1 SATA, 2 I2C, 1 I2S, 2 PCIE 1 lane,*Operating temperature 0 ~ 60 °C / -40 ~ 85 °C*Supports Linux Yocto
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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 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
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
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 - 8-Channel 1-Pole Multiplexer
1020-R-8-1-5/1D
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
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
LCD Controllers
CP240x
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The CP240x extremely low power LCD controller devices can drive up to 128 LCD segments. These devices are easily interfaced with any microcontroller using SPI or I2C interfaces. A benefit to this approach is designers can select the best-fit MCU for the system and then add the CP240x to handle LCD requirements efficiently with respect to system size and power consumption.
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Product
SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)
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Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus! The Qwiic Mux Breakout enables communication with multiple I2C devices that have the same address that makes it simple to interface with. The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system.
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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
Serial EEPROM
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STMicroelectronics is the world's #1 supplier of Serial EEPROM thanks to development of leading-edge technology, recognized product robustness and high manufacturing capacity. ST focuses on the availability of the complete portfolio with short lead times, high flexibility in volume and worldwide distribution through selected partners. ST's comprehensive portfolio offers reliable SPI, I2C and Microwire products in SO8N, TSSOP8, DFN2X3, DFN5, WLCSP and bare die packages.
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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
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
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
SIMRC - 16-Channel 1-Pole MUX, Screened Reed
1020-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
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
SIMRC - 16 x Uncommitted Reed Relay, SPDT
1010-R-16-1-5/3D
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
Digital Temperature Sensors
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Analog Devices offers a broad selection of digital temperature sensors with I2C, SPI, and mark space interfaces. For more intricate system design applications, some of these sensors have integrated D/A converters, A/D converters, references, and limit alarm register. All of these sensors possess a broad range of uses, including scientific, medical, and aerospace applications, in test and measurement equipment, and in industrial automation.
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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
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
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
High Flexibility Test Controller Card
TCC 1800-UE
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The TCC1800-UE Test Controller Card is a generic control board for production testing of printed circuit boards (PCBs). The board is controlled by a command language on a PC to which it is connected via Ethernet.The TCC1800-UE is designed to work with positive voltages up to 24V. The card provides extensive IO: Analog and digital interfacing, counters, PWM outputs, bidirectional I/O, ethernet-, CAN, USB, SPI and I2C interfacing.
