Features:

• The Sparkfun Qwiic GPIO is an I²C device based around the TCA9534 I/O Expander IC from Texas Instruments.
• The board adds an additional eight IO pins which you can read and write just like any other digital pin on your controller.
• The TCA9534’s pins are broken out to easy-to-use latch terminals.

Specifications:

• Eight Configurable GPIO Pins Available
• I2C Address: 0x27 (Default)
• Hardware address pins allow up to eight boards on a single bus
• Input Polarity Inversion Register
• Control each I/O pin individually or all at once
• Open-Drain Active-Low Interrupt Output
• 2x Qwiic Connectors
• Dimensions: 2.40in x 1.50in (60.96mm x 38.10mm)