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 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
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
Low Speed Protocol Decode/Trigger Software (I2C, SPI, RS232, I2S, JTAG)
D9010LSSP
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This bundle includes powerful decoding and triggering for the following serial bus standards: I²C, SPI, Quad SPI, eSPI (including Quad eSPI), RS232/UART, Manchester, I²S, SVID, and JTAG (IEEE 1149.1). It is compatible with S-Series, V-Series, Z-Series, EXR-Series, MXR-Series, UXR-Series, 9000 Series, and 90000 Series Infiniium oscilloscopes. For detailed information on the decode and trigger settings, please refer to the datasheet.
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Product
Temperature & Humidity Sensor Breakout Board
Si7021
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Sensor for Silicon labs has ± 3% relative humidity measurements with a range of 0–80% RH, and ±0.4 °C temperature accuracy at a range of -10 to +85 °C. Great for all of your environmental sensing projects. It uses I2C for data transfer so it works with a wide range of microcontrollers.
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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
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
Alchitry Au FPGA Development Board (Xilinx Artix 7)
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The Alchitry Au is the "gold" standard for FPGA development boards and it's possibly one of the strongest boards of its type on the market. FPGAs, or Field-Programmable Gate Arrays, are an advanced development board type for engineers and hobbyists alike to experience the next step in programming with electronics. The Au continues the trend of more affordable and increasingly powerful FPGA boards arriving each year. This board is a fantastic starting point into the world of FPGAs and the heart of your next project. Finally, now that this board is built by SparkFun, we added a Qwiic connector for easy I2C integration!
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Product
1584W to 2500W - Single Output
HFE Series
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*1U rackmount containing up to 5 units*Up to 29.2W/in³ power density*Internal ORing MOSFET & Current Share*High Efficiency*Up to 9,500W in 1U rack*PMBus™(I2C) and LAN options
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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
Bi-Directional Level Translator
IFB-10001
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Easily connect Arduino or other 5V microcontrollers to ~3.3V sensors. Based on the TI TXB0108 auto-sensing, bi-directional level translator, this module provides access to all 8 channels of the TXB0108 and has a built-in 300mA LDO with 200mV max dropout voltage at full load. Regulated 3.3V output allows this single board to both interface withandpower 3.3V sensors. An important feature of this module is the ability to operate SPI and other digital lines (not including I2C) at high-speed, whereas the 'NXP level shifter' maxes out at 400kHz and resistor dividers fail much earlier. The TXB0108, integrated with the LP3981 LDO, provide a fast, reliable solution to mismatched interface voltages that exceeds the performance of other solutions.
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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
SparkFun Triple Axis Accelerometer Breakout
ADXL345
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This new version adds two standoff holes as well as an extra decoupling capacitor. The ADXL345 is a small, thin, low power, 3-axis MEMS accelerometer with high resolution (13-bit) measurement at up to +-16 g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.
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Product
SIMRC- 72 Pin Simm Socket
1090-001
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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
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 I2C DAC Breakout
MCP4725
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You've always wanted to output analog voltages from a microcontroller, the MCP4725 is the DAC that will let you do it! The MCP4725 is an I2C controlled Digital-to-Analog converter (DAC). A DAC allows you to send analog signal, such as a sine wave, from a digital source, such as the I2C interface on the Arduino microcontroller. Digital to analog converters are great for sound generation, musical instruments, and many other creative projects!
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Product
Logic Analyzer
LAP-16064U
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Zeroplus Technology Corperation
Sample rate (Internal clock): 100MHz 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. Glitch Capture Capability: 5ns. Bandwidth: 75MHz.
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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
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
500 Watt AC/DC Power Line Conditioner, 3U VPX, Holdup Time
VPX56-3HU
Power Line Conditioner
NAI's VPX56-3HU is a rugged, high-performance 500-Watt Output +28 VDC Input 3U VPX AC/DC Power Line Conditioner designed for aerospace, defense, and industrial markets. This off-the-shelf power supply plugs directly into a standard VPX conduction cooled chassis and protects downstream DC-DC converters from MIL-STD-704 transients, low-voltage conditions and power interruptions, providing up to 50 milliseconds of holdup time at up to 500-Watts. Continuous Background Built-In-Test (BIT) and I2C communication are included.
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Product
DC/AC Sine Inverter
44KS6
Sine Inverter
- +28 VDC- Output 26 VAC @ 400Hz- 75 VA output power- MIL-1275D Compliant- Reverse Polarity Protection- Continuous Background Built-In-Test (BIT)- IPMI Monitoring of Voltages, Currents and Temperature- I2C communication- Temperature monitor- Nuclear Event Input
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Product
Accelerometor, Gyro, Magnetometer Breakout Board
SEN-38001
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The LSM9DS1 is a highly configurable, flexible and precise motion sensing solution from ST Microelectronics - the latest in a wide-ranging inertial product line. It integrates a 3-axis accelerometer, 3-axis gyroscope and 3-axis magnetometer into a single IC , giving you a full nine degrees of freedom (9-DOF) in a tiny 3mm x 3.5mm package. Even with support components, square mounting pattern and connection breakouts for both SPI and I2C, this board is barely the size of a quarter.
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Product
Fiber Adapter
I2C fiber adapter
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*Optical data transmission*Glass fiber or POF*Optimal galvanic isolation*Up to 350kHz*Up to 50m*No software or drivers required
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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
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
SIMRC - 8 x 2 Matrix 1-Pole Screened Relay
1030-R-8-2-1RF-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
Power Monitors
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Analog Devices’ power monitoring amplifiers provide an integrated solution for digital current and voltage measurement via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. Leveraging ADI’s precision analog design techniques, ADI’s products are twice as precise as competing devices, offering best-in-class accuracy (<±0.8%). The power monitors complete the industry’s only monitor and sequencer family to deliver <±1% accuracy for 2 to 12 supplies.
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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
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
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
SparkFun Digital Temperature Sensor Breakout
AS6212 (Qwiic)
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This SparkFun Qwiic Digital Temperature Sensor Breakout provides a combination of high temperature accuracy with excellent low power consumption using the AS6212 digital temperature sensor from ams AG. The sensor measures temperature data up to ±0.2°C; accuracy over a wide range (-40°C; to +125°C;) and consumes an average of 6µA in normal operation (0.1µA in standby). The AS6212 communicates via I2C and has eight available I2C addresses selected by a pair of solder jumpers on the board. The breakout routes the I2C interface to a pair of Qwiic connectors to work with our plug-and-play Qwiic Ecosystem but also routes the bus and other pins to a standard 0.1"-spaced PTH header for users who prefer a soldered connection.
