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Reference > Libraries > Sparkfun qwiic gpio tca9534 arduino library

SparkFun Qwiic GPIO TCA9534 Arduino Library

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A library to drive the TCA9534 I2C-GPIO
The Qwiic GPIO breaks out 8 extra GPIO on an I2C bus. With 8 configurable addresses, that's 64 extra GPIO on a single I2C Bus.

Author: Andy England

Maintainer: SparkFun Electronics

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Compatibility

This library is compatible with all architectures so you should be able to use it on all the Arduino boards.

Releases

To use this library, open the Library Manager in the Arduino IDE and install it from there.