I2C Interface Support from Instrument Control Toolbox
Use the I2C protocol to connect MATLAB to your chips, circuit boards, and sensors.
MATLAB supports I2C (Inter-Integrated Circuit) interface communication through Instrument Control Toolbox. I2C is a chip-to-chip interface that supports two-wire communication. Instrument Control Toolbox I2C support lets you open connections with individual chips or on-board I2C sensors. You can then read and write data over these connections.
When characterizing a sensor or verifying the performance of a device or subsystem, you can configure chip settings using I2C while measuring outputs of the board or device with other test and measurement equipment. I2C interface support is available using USB to I2C host adapters from Total Phase and National Instruments®.
Supported Interface Hardware
Instrument Control Toolbox supports the I2C interface hardware shown below. Only Controller/Master mode is supported.
Explore gallery (2 images)
| Manufacturer | Model | Minimum Toolbox Version |
|---|---|---|
| Total Phase | Aardvark TP240141 | R2013b (version 3.4) |
| National Instruments | NI-USB-8451 | R2014a (version 3.5) |
| National Instruments | NI-USB-8452 | R2014a (version 3.5) |
Get Support Package Now
There are two support packages depending on the hardware being used. Click to get your support package now:
For Total Phase Aardvark
For National Instruments USB-845x
Platform Support
For Total Phase Aardvark and for National Instruments I2C devices, support is available on 64-bit Microsoft® Windows® only. 64-bit Mac support is available only on releases R2012a - R2017b.
For National Instruments, support is available on 64-bit Microsoft Windows only.
Check the System Requirements
To install a hardware support package, you must have a supported product release, along with the required operating system and base product.
View the hardware support package system requirements table and confirm you have:
- A supported release
- A supported operating system
- The required base products
If you do not have a supported release or the required base products, you can get started with a free trial, or you can purchase products.
Continue with the Installation
After confirming you have the system requirements, proceed with either installation option listed below.
Option 1: Using the Toolstrip
Launch the Support Package Installer from your version of MATLAB and navigate to the correct support package.
Option 2: "Get Support Package" Button (.mlpkginstall file*)
Clicking the Get Support Package button provides the support package install file:
([filename].mlpkginstall)
There are several ways to initiate the Support Package Installer from these files:
- Open the
.mlpkginstallfile directly from your Internet browser. - Download and save the file (the default option for some Internet browsers), and open it directly from your Windows, Mac, or Linux operating system.
- Open the
.mlpkginstallfile directly from within MATLAB by navigating the Current Folder to the location of the downloaded file and double clicking it. That will initiate the installation for the MATLAB release that you have open.
The primary difference between using the .mlpkginstall file (option 2) rather than the toolstrip (option 1) to initiate support package installation is that the file allows the user to avoid the support package selection screen on the installer.
*These file types were introduced in MATLAB R2013a.
Users without an Internet connection can install hardware support packages by following the download instructions.
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