Crate sensirion_i2c

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Expand description

Library with common functionality for I2C based sensors from Sensirion, based on the embedded-hal traits.

§Usage

§CRC8 calculation / validation

use sensirion_i2c::crc8;

let data = [0xbe, 0xef];
let crc = crc8::calculate(&data);

let data = [0xbe, 0xef, crc];
assert_eq!(Ok(()), crc8::validate(&data));

§I2C

The I2C helpers work with any embedded_hal::i2c implementation.

use embedded_hal_mock::eh1::i2c::{Mock as I2cMock, Transaction as I2cTransaction};
use sensirion_i2c::i2c;

let expectations = [I2cTransaction::write(0x12, vec![0x34, 0x56])];
let mut i2c_mock = I2cMock::new(&expectations);
i2c::write_command_u16(&mut i2c_mock, 0x12, 0x3456);
i2c_mock.done();
§embedded-hal-async

The i2c_async module provides versions of the I2C helpers in this crate that use the embedded-hal-async crate, rather than the blocking I2C traits from embedded-hal.

This module is only available when the embedded-hal-async Cargo feature is enabled.

Modules§

  • crc8
    Helper functions for CRC8 checksum validation
  • i2c
    Helper functions for I²C communication.
  • i2c_asyncembedded-hal-async
    embedded-hal-async helper functions for I²C communication.