A library for use with arduino IDE to simplify using an i2c IO Expander chip.

The chip selected is a through-hole ic from Microchip, MCP23016.
Digikey part: MCP23016-I/SP-ND

UPDATE: This appears broken with recent builds of the Arduino IDE. A new version will be uploaded soon.

Project Samples

Project Activity

See All Activity >

Categories

Libraries

License

Other License

Follow io_expander

io_expander Web Site

Other Useful Business Software
Secure User Management, Made Simple | Frontegg Icon
Secure User Management, Made Simple | Frontegg

Get 7,500 MAUs, 50 tenants, and 5 SSOs free – integrated into your app with just a few lines of code.

Frontegg powers modern businesses with a user management platform that’s fast to deploy and built to scale. Embed SSO, multi-tenancy, and a customer-facing admin portal using robust SDKs and APIs – no complex setup required. Designed for the Product-Led Growth era, it simplifies setup, secures your users, and frees your team to innovate. From startups to enterprises, Frontegg delivers enterprise-grade tools at zero cost to start. Kick off today.
Start for Free
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of io_expander!

Additional Project Details

Intended Audience

Developers

Programming Language

C++

Related Categories

C++ Libraries

Registered

2010-10-19