Crate mcp23017_rpi_lib
source · [−]Expand description
MCP23017 RPI Library
This library provides an interface for the MCP23017 gpio expander chip. It is based on a python library of the same name, found here.
You can view the docs here.
Example - Blink
let mut mcp = MCP23017::new(0x20, 1).unwrap();
let led = Pin::new(0).unwrap();
mcp.pin_mode(&led, Mode::Output).unwrap();
loop {
mcp.output(&led, State::High).unwrap();
sleep(Duration::from_millis(200));
mcp.output(&led, State::Low).unwrap();
sleep(Duration::from_millis(200));
}
Pin Conversion
PIN | MCP PIN | Name |
---|---|---|
0 | 21 | GPA0 |
1 | 22 | GPA1 |
2 | 23 | GPA2 |
3 | 24 | GPA3 |
4 | 25 | GPA4 |
5 | 26 | GPA5 |
6 | 27 | GPA6 |
7 | 28 | GPA7 |
8 | 1 | GPB0 |
9 | 2 | GPB1 |
10 | 3 | GPB2 |
11 | 4 | GPB3 |
12 | 5 | GPB4 |
13 | 6 | GPB5 |
14 | 7 | GPB6 |
15 | 8 | GPB7 |
License
This software is provided under the MIT license. Click here to view. The original python library is also licensed under MIT. It can be found here.