SparkFun Qwiic GPIO - TCA9534 Arduino Library

SparkFun Qwiic GPIO - TCA9534 (DEV-16443)

The TCA9534 is an I2C->GPIO IC with 8 GPIO per IC. 8 hardware customizable addresses allow for 64 GPIO on a single bus

This library allows the user to:

• Set I/O pins as Inputs or Outputs either individually or as a port
• Write or read I/O pins when configured as Inputs or Outputs, respectively.
• Invert I/O pins' polarity individually or as a port.
• Control the Interrupt pin of the TCA9534.

Examples are included to get you started

Repository Contents

• /examples - Example sketches for the library (.ino). Run these from the Arduino IDE.
• /src - Source files for the library (.cpp, .h).
• keywords.txt - Keywords from this library that will be highlighted in the Arduino IDE.
• library.properties - General library properties for the Arduino package manager.

Documentation

• Installing an Arduino Library Guide - Basic information on how to install an Arduino library.
• Product Repository - Main repository (including hardware files) for the SparkFun Qwiic GPIO

Products That Use This Library

• SPX-16443 - Qwiic GPIO - TCA9534

License Information

This product is open source!

Please review the LICENSE.md file for license information.

If you have any questions or concerns on licensing, please contact techsupport@sparkfun.com.

Please use, reuse, and modify these files as you see fit. Please maintain attribution to SparkFun Electronics and release any derivative under the same license.

Distributed as-is; no warranty is given.

• Your friends at SparkFun.