NEW GUIDE: Adafruit PCF8575 I2C 16 GPIO Expander Breakout #AdafruitLearningSystem #Adafruit @adafruit

Expand your project possibilities!

The Adafruit PCF8575 GPIO Expander Breakout is an affordable 16 channel I2C expander. GPIO expanders work like this: you have a board with some number of GPIO but not enough for your project – maybe you need more buttons or LEDs. You could upgrade to a board with massive number of GPIO like the Grand Central, or you could pop on one of these boards. Connect it over I2C and then you can send/receive I2C commands to control the GPIO pins to write and read them.

The Adafruit PCF8575 I2C 16 GPIO Expander Breakout guide has everything you need to get started with your I2C expander. There’s an overview, pinouts, downloads resources, and code examples in both CircuitPython and Arduino.

Check out the full guide: Adafruit PCF8575 I2C 16 GPIO Expander Breakout!


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