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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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12C Adapter Slave
I2C RS232 adapter
RS model:*RS232 controlledASCII commands via the serial interfaceI2C bus transparent, 1: 1 transmission IC model:*I2C controlledcommands via the I2C busSerial interface is transparent. 1: 1 transfer
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Negative Tester
I2C
telos EDV Systementwicklung GmbH
The most common use of an I2C interface is to send and receive data in compliance with the I2C specification. This implies that the device we are talking to is known to conform to the I2C standard, as well.
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Bus Analyzer, Exerciser, Emulator, and Programmer
CAS-1000-I2C/E
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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SparkFun Pressure Sensor Breakout
MS5803-14BA
This is the MS5803-14BA Pressure Sensor Breakout, a high resolution pressure sensor with both an I2C and SPI interface. This MEMS pressure sensor measures the absolute pressure of the fluid around it which includes air, water, and anything else that acts like a viscous fluid. Depending on how you interpret the data, you can determine altitude, water depth, or any other tasks that require an accurate pressure reading. What makes the MS5803-14BA unique is the the gel membrane and antimagnetic stainless steel cap that protects against 30 bar water pressure.
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USB to I2C Adapter
Model JI-300
The JI-300 is a versatile, easy to use PC hosted adapter used to drive I2C communicationsto/from a target device. The desktop unit can be configured to interface a variety of I2Cnetworks. Bus parameters such as clock frequency, duty-cycle, setup and hold times, busvoltage, and pull-up resistor values can be varied. JI-300''s diagnostic features including"excessive clock-stretch", "bus-not-free", and "bus contention" monitoring, as well as statusreporting at the conclusion of each message transaction simplifies I2C trouble-shooting. AWindows software application manages the setup and control of the instrument.Communications and unit power is provided via a USB 2.0 connection.
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SIMRC - RS232 to I2C Converter PCB
1080-001
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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SparkFun LED Driver Breakout
LP55231
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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SparkFun Triple Axis Accelerometer Breakout
ADXL345
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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Soil Moisture Sensor
Modbus RS485
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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Training Board
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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Garmin LIDAR-Lite V4 LED
Distance Measurement Sensor (Qwiic)
The LIDAR-Lite v4 Qwiic from GARMIN is a high-performance, wireless optical distance measurement sensor that doesn't require any soldering to get started. This is the ideal solution for drone, robot, IoT, or unmanned vehicle operations when space is tight and power is limited. This sensor has up to a 10 meter range, 1cm resolution, and requires 85mA during data acquisition. The user can read and write to the LIDAR-Lite v4 using the I2C protocol; this is where the addition of the SparkFun Qwiic system really shines. The LIDAR sensor requires 5V to operate but runs on 3V3 logic. With a 5V boost circuit and an easy-to-use Qwiic connector you can power the sensor and get distance measurements over Qwiic all with a single piece of hardware.
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Evaluation Kit
ROM-DK2620
*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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SIMRC - 8 x 4 Matrix 1-Pole
1030-R-8-4-1-5/1D
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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Module Spectrum
nRF52810 Series
Nordic nRF52810 solutioin features an Arm Cortex-M4 processor with 192 KB Flash and 24 KB RAM with 32 GPIO available. Supports SPI, UART, I2C, PWM interfaces with both Chip Antenna and PCB Antenna option for selection.
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Embedded Serial Triggering and Analysis for InfiniiVision DSOX1000 Series Oscilloscopes
DSOX1EMBD
The IC, SPI, and UART/RS-232 serial decode option for InfiniiVision 1000 X-Series oscilloscopes (DSO models) displays responsive, time-aligned, on-screen decode of Inter-Integrated Circuit (IC), 3-wire Serial Peripheral Interface (SPI), and UART/RS232 serial communication buses. Because it is hardware-based, this option provides the fastest throughput solution for triggering on and analyzing IC, SPI and UART/RS-232 serial buses found in a wide variety of embedded designs.
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Silicon Oscillators
Analog Devices silicon oscillators are frequency programmable via pin-strapping, or through the resistor connection or serial interface (SPI or I2C). These solid-state clocks are well-suited for general-purpose usage, such as PGAs, ASICS, microprocessors, or UARTS, and they operate from 1 kHz to 170 MHz. Silicon oscillators are also ideal switching regulator clocks as they provide synchronization and EMI reduction (via spread spectrum).
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SparkFun Qwiic Micro:bit Breakout (with Headers)
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. We've already attached headers to this version of the board so you don't need to worry about any soldering! 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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SparkFun Qwiic EEPROM Breakout
512Kbit
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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SIMRC - 16 x Uncommitted Reed Relay, SPST Screened
1010-R-16-1RF-5/1D
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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Robust RISC-based DIN-rail Fanless Embedded System With I.MX 6UL Processor, COM, SPI, I2C, 2 LANs And DIO (2-in/1-out)
IFB125
The IFB125 is powered by the low-power Freescale i.MX6UL processor in the ARM® Cortex™-A7 micro architecture. It supports extended operating temperature ranging from -40°C to 70°C, and can withstand vibration up to 5G. Its flexible wide voltage range 9V - 48V DC power input with a lockable terminal block type connector also enhances its reliability in harsh environments. To meet most of Industrial IoT needs, the IFB125 supports multiple communication interfaces for maximum flexibility, including LAN, serial, USB, and digital I/O ports. The Industrial IoT gateway has 256MB onboard memory that features data transfer rates of DDR3-1600, as well as 4GB eMMC flash memory onboard for storage. This embedded IoT gateway platform is equipped with one PCI Express Mini Card slot and one SIM card slot. Additionally, it supports DB9 connectors with both SPI and I2C function as communication protocols to suit for specific applications
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Hall Sensor Board with I2C Interface
050-382
Version: +5V/15A +12V/15A -5V/15A -12V/15A 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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SparkFun Pulse Oximeter And Heart Rate Sensor
MAX30101 & MAX32664 (Qwiic)
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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Qwiic Connect System
An ecosystem of I2C sensors, actuators, shields, and cables that make prototyping faster and less prone to error.
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SIMRC - 8-Channel 1-Pole Multiplexer
1020-R-8-1-5/1D
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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SparkFun High Precision Temperature Sensor
TMP117 (Qwiic)
The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1°C across the temperature range of -20°C to +50°Cs with no calibration and a maximum range from -55°C to 150°C. The SparkFun High Precision Temperature Sensor also has a very low power consumption rate which minimizes the impact of self-heating on measurement accuracy. 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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SparkFun Digital Temperature Sensor Breakout
AS6212 (Qwiic)
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.
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ST VL53L0X Time-of-Flight Range/Distance Sensor
SEN-36003
Highly integrated breakout board for the ST Micro VL53L0X Time of Flight (ToF) range finder sensor, which builds on the absolute ranging technology introduced with the VL6180X. The VL53L0X drops the ambient light sensing capability of it's predecessor for a 10X improvement in absolute ranging capability, bringing the maximum possible range to 2 meters! As a result, this sensor has even more uses in the robotics, cell phone and gesture recognition space. The SEN-36003 includes the VL53L0X IC mounted between two 4-40 sized mounting holes with on board 2.8V LDO and high-speed 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. All pins are translated to allow interfacing with any microcontroller in the 3V to 5V operating range.
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Multi Protocol Analyzer
LE-3500R
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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Bridge Device and GPIO Port Expander
SPI-to-I2C
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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SparkFun Qwiic Single Relay
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!





























