#i2c #mcp23017 #io #hal #mcp23008

no-std mcp230xx

MCP23008/MCP23017 8/16-Bit I2C I/O Expander with I2C Interface

3 releases (stable)

1.0.1 May 5, 2024
1.0.0 Mar 23, 2023
0.1.0 Aug 5, 2022

#2283 in Embedded development

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306 downloads per month
Used in 3 crates

MIT license

12KB
217 lines

mcp230xx

This crate is a no_std driver for the MCP23017 and MCP23008 16-Bit/8-Bit I2C I/O Expanders.

Build Status crates.io Docs

Basic usage

Include this library as a dependency in your Cargo.toml:

[dependencies]
mcp230xx = "0.1"

Use embedded-hal implementation to get I2C handle and then create mcp23017 handle:

use mcp230xx::*;

let pin = Mcp23017::A0;
let mut u = Mcp230xx<I2C, Mcp23017>::default(i2c).unwrap();
u.set_direction(pin, Direction::Output).unwrap();
u.set_gpio(pin, Level::High).unwrap();
assert!(u.gpio(pin).unwrap());

Hardware address pins

Address table

Documentation

API Docs available on docs.rs

Thise crate has evolved from mcp23017.

Minimum supported Rust version (MSRV) is 1.62.0.

License

MIT license

Dependencies

~300–730KB
~16K SLoC