Rust driver for MAX31856

Uses embedded-hal 1.0.0 traits (SpiDevice) and patterns from Eldruin's driver-examples

Communication with MAX31856 only works with Spi Mode 1 or 3.

Features:

• Modify default configuration. See: config()
• Read/write configuration. See: send_config()
• Read Linearized thermocouple temperature in Celcius. See: temperature()
• Read cold junction temperature. See: cold_junction_temperature()
• Read Fault status. See: fault_status()

Features in the next few versions:

• Interrupts with FAULT pin
• External temperature sensor for cold junction conversion
• Read/write fault mask registers.
• Read/write cold junction fault mask registers.
• Read/write Linearized temperature fault registers.
• Read/write cold junction temperature offset registers.

Usage example

use max31856;

fn example<S, FP>(spi_dev: S, fault_pin: FP) -> Result<(), max31856::Error>
where
    S: embedded_hal::spi::SpiDevice,
    FP: embedded_hal::digital::InputPin,
{
    let mut sensor = max31856::Max31856::new(spi_dev, fault_pin);
    // A default configuration is set on creation. It can be edited as follows
    sensor.config().average_samples(max31856::AveragingMode::FourSamples);
    let _ = sensor.send_config();
    println!("Temperature: {}", sensor.temperature().unwrap());
    sensor.config().conversion_mode(max31856::CMode::AutomaticConversion);
    let _ = sensor.send_config();
    println!("Temperature: {}", sensor.temperature().unwrap());
    // Faults can be assessed via 
    println!("Status: {:?}", sensor.fault_status()); 
    Ok(())
}

Support

For questions, issues, feature requests like compatibility with similar devices and other changes, please file an issue in the github project.

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Contributing

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.