Adafruit MCP23017 I2C GPIO Expander Breakout
Adafruit Industries, LLC mail
We like the MCP23017 as an expander for its simple capability. It runs from 3V or 5V logic and power, each GPIO drive up to 25mA as an output, or an input, with optional pullup. There are two IRQ pins that are configurable. With 3 address pins, you get 128 GPIO on one I2C bus! This GPIO expander uses a 4-pin Sparkfun Qwiic-compatible connector called STEMMA QT, which allows the sensor to communicate over I2C without needing to solder. Click the link labeled 'Project Website' to find out more.
Version
Rev ALicenses
Certification mark
The OSHW Certification Mark shows the project's unique certification ID and makes it easy for users to quickly find this page along with the project's details. This mark can be used throughout the project's design, documentation, and promotional material.
For more details, take a look at the Certification Mark Usage Guide.
Project Type
Electronics
