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Tca9548A - Getting started

Arduino library​

To install the Arduino library for the TCA9548A I2C Multiplexer, you can download it from the GitHub repository:

IO expander TCA9548A breakout Arduino library

IO expander Arduino library by Soldered
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First time Arduino user? For a detailed tutorial on how to get started with Arduino, see this section of our docs:

Getting started with Arduino

A full, comprehensive tutorial on how to fully set up and upload code for the first time on an Arduino board, from scratch!

Connections​

Below is an example connection diagram for Dasduino CONNECTPLUS. These pins will be used in the examples throughout this documentation.

Dasduino CONNECTPLUSBreakout Board
QwiicQwiic
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If you prefer, you can use I2C pins to manually connect:

Dasduino CONNECTPLUSBreakout Board
SDASDA
SCLSCL
GNDGND
5VVCC