SparkFun I2C Expander Arduino Library

Library for PCA and TCA I2C GPIO Expanders

Author

SparkFun Electronics

Website

https://github.com/sparkfun/SparkFun_I2C_Expander_Arduino_Library

Category

Device Control

License

NOASSERTION

Library Type

Contributed

Architectures

Any

An Arduino Library for various 4 and 8-bit I²C expanders. This library handles the initialization of the expander IC and supports standard pinMode, digitalRead, and digitalWrite functions. The following ICs are supported: <b>PCA9534/TCA9534, PCA9536/TCA9536, PCA9537/TCA9537, PCA9554/TCA9554, PCA9556/TCA9556, PCA9557/TCA9557</b> and may support others. Library supports using alternate Wire ports (ie, Wire1, etc) as well as alternate I2C addresses. Includes support for Interrupt Pin errata (PCA9554).

Downloads

Filename	Release Date	File Size
SparkFun_I2C_Expander_Arduino_Library-1.0.1.zip	2024-11-27	14.68 KiB
SparkFun_I2C_Expander_Arduino_Library-1.0.0.zip	2024-11-18	14.69 KiB