Rust Drivers for the ACS37800 Energy Metering IC

Important

This driver is a work in progress. Only the I²C variants of the IC are currently supported. Reading the EEPROM registers is the only currently supported operation.

Crate Features

In most every case you will need to enable at least one feature depending on the variant of the ACS37800 you are targeting.

Feature	Description
i2c	Enables I²C driver
spi	Enables SPI driver

Example

// Instantiate the I²C bus device
let i2c = I2cdev::new("/dev/i2c-1").unwrap();

// Instantiate the ACS37800 I²C driver
let mut acs37800 = Acs37800I2c::builder().i2c(i2c).build();

// Read the EEPROM data
match acs37800.read_eeprom() {
    Ok(eeprom) => {
        println!("{eeprom:#?}");
    }
    Err(cause) => {
        eprintln!("Reading EEPROM failed: {cause}");
    }
}

The code above will print out:

Acs37800Eeprom {
    qvo_fine_codes: 30,
    qvo_fine_icodes_offset: 1920,
    sns_fine_codes: -454,
    crs_sns: 4,
    iavgsel_enabled: false,
    pavgsel_enabled: false,
    rms_avg_1: 0,
    rms_avg_2: 0,
    vchan_offset_codes: 0,
    ichan_delay_enabled: false,
    chan_delay_sel: 0,
    fault_threshold_codes: 70,
    fault_delay_setting: 0,
    vevent_cycles: 0,
    overvoltage_threshold_codes: 32,
    undervoltage_threshold_codes: 32,
    zerocross_pulse_width_us: 32,
    halfcycle_en: false,
    squarewave_en: false,
    zerocross_current_channel: false,
    zerocross_rising_edge: false,
    i2c_address_7bit: 127,
    i2c_address_disabled: false,
    dio0_sel_raw: 0,
    dio1_sel_raw: 0,
    n_cycles: 0,
    bypass_n_en: false,
}

Additional examples, including async usage, can be found in the examples folder