Adafruit PCF8575 I2C 16 GPIO Expander Breakout

Expand your project possibilities with the Adafruit PCF8575 GPIO Expander Breakout, an affordable 16-channel I2C expander. Perfect for when you need extra I/O pins without upgrading to a larger board. Easily connect via I2C and gain significant I/O control.

Utilize only two I2C pins, even share them with other devices, and add more expanders for expansive capability. Affordable with 16 I/O pins, it allows up to 8 expanders per bus, yielding 128 additional GPIO pins.

Features light pull-up inputs or strong low-driving outputs. Ideal for reading buttons or controlling LEDs. Its unconventional pin direction model suits many purposes, with available libraries simplifying operation.

Integrated in the STEMMA QT form factor, it easily interfaces using solderless connections through compatible I2C connectors. Enhance your setup seamlessly with other sensors using available cables.