LDC3114

Driver crate for the TI LDC3114 Inductance-to-Digital Converter. Compatible with embedded-hal and embedded-hal-async traits.

Example usage

let mut inductance_sensor = Ldc3114::new(inductance_sensor_i2c);

// Set the device in configuration mode
inductance_sensor.config_mode().await.unwrap();

// Wait until the registers are ready to write
loop {
    if inductance_sensor.is_ready_to_write().await.unwrap() {
        break;
    }
    Timer::after_millis(5).await;
}

// Your setup
inductance_sensor.set_normal_scan_rate(ScanRate::Lowest).await.unwrap();
inductance_sensor.set_low_power_scan_rate(LowPowerScanRate::Low).await.unwrap();
inductance_sensor.enable_button_press_detection_algorithm(false).await.unwrap();

// Set the device in normal mode
inductance_sensor.normal_mode().await.unwrap();

// Wait until the chip is ready
loop {
    if inductance_sensor.is_chip_ready().await.unwrap() {
        break;
    }
    Timer::after_millis(5).await;
}

loop {
    // Read status to update raw data registers
    let _ = inductance_sensor.read_status().await.unwrap();
    let ch0 = inductance_sensor.read_raw_data(Channel0).await.unwrap();
    let ch1 = inductance_sensor.read_raw_data(Channel1).await.unwrap();
    let ch2 = inductance_sensor.read_raw_data(Channel2).await.unwrap();
    let ch3 = inductance_sensor.read_raw_data(Channel3).await.unwrap();
}

Alternative setup

If you have many configurations to set, set up a const DeviceConfig:

const LDC3114_CONFIG: DeviceConfig = DeviceConfig {
    scan_rate: ScanRate::Highest,
    ..DeviceConfig::const_default()
};

and then call

inductance_sensor.set_device_configuration(&LDC3114_CONFIG).await.unwrap();

Resources

• Datasheet
• Application Note

License

This work is 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.