Struct Max6675 

pub struct Max6675 { /* private fields */ }

A representation of the MAX6675 thermocouple digitizer.

Implementations

impl Max6675

pub fn new(spi_connection_path: impl AsRef<str>) -> Result<Self, Max6675Error>

Tries to create a new Max6675 based on the given SPI path. A valid SPI path usually looks like /dev/spidev0.0.

Example

use linux_max6675::Max6675;

match Max6675::new("/dev/spidev0.0") {
    Ok(_thermo) => {
        println!("success! woohoo");
    }
    Err(e) => {
        println!("oh noooo big scary error {e}");
    }
}

pub fn read_celsius(&mut self) -> Result<Temperature, Max6675Error>

Tries to read the thermocouple’s temperature in Celsius.

Example

let mut thermo = Max6675::new("/dev/spidev0.0")?;
println!("it's {}° celsius in here!", thermo.read_celsius()?);

pub fn read_fahrenheit(&mut self) -> Result<Temperature, Max6675Error>

Tries to read the thermocouple’s temperature in Fahrenheit.

Example

let mut thermo = Max6675::new("/dev/spidev0.0")?;
println!("oh man! it's {}° fahrenheit in here!", thermo.read_fahrenheit()?);

pub fn read_kelvin(&mut self) -> Result<Temperature, Max6675Error>

Tries to read the thermocouple’s temperature in Kelvin.

Example

let mut thermo = Max6675::new("/dev/spidev0.0")?;
println!("i'm a nerd and i use kelvin! and it's {}° kelvin!", thermo.read_kelvin()?);

pub fn read_raw(&mut self) -> Result<[u8; 2], Max6675Error>

Tries to return the thermocouple’s raw data for data science. (and other fun little things)

Refer to page 5 of Maxim Integrated’s MAX6675 specsheet for info on how to interpret this raw data.

Example

let mut thermo = Max6675::new("/dev/spidev0.0")?;
let res = thermo.read_raw()?;
println!("oOoo here's my favorite bytes: [{}, {}]", res[0], res[1]);

Trait Implementations

impl Debug for Max6675

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.