Crate bq27441 

High-level BQ27441 battery fuel gauge driver with synchronous and asynchronous support.

This driver provides access to the BQ27441-G1 battery fuel gauge IC from Texas Instruments. It supports I²C communication with both blocking and async modes.

Features

• State of Charge (SOC) monitoring
• Voltage, current, and temperature measurements
• Remaining capacity and full charge capacity reporting
• Power and current averaging
• State of Health (SOH) reporting
• Configuration via Data Memory
• SEALED/UNSEALED access modes
• Multiple power modes (NORMAL, SLEEP, HIBERNATE, SHUTDOWN)

Examples

Blocking I2C

use bq27441::Bq27441;

// Create driver with default I2C address (0x55)
let mut gauge = Bq27441::new(i2c)?;

// Read battery voltage
let voltage_mv = gauge.voltage()?;

// Read state of charge (0-100%)
let soc = gauge.state_of_charge()?;

// Read remaining capacity
let capacity_mah = gauge.remaining_capacity()?;

Async I2C

use bq27441::Bq27441Async;

// Create async driver
let mut gauge = Bq27441Async::new(i2c).await?;

// Read battery status asynchronously
let voltage = gauge.voltage().await?;
let soc = gauge.state_of_charge().await?;

Modules

field_sets

Module containing the generated fieldsets of the registers and commands

Structs

Bq27441

Blocking BQ27441 driver.

Bq27441Device

Root block of the Bq27441Device driver

DeviceInterface

Blocking I²C interface wrapper.

Enums

ChemId

Battery chemistry variant.

ControlCmd

Control subcommand codes.

Error

Error type for BQ27441 operations.

Constants

DEFAULT_I2C_ADDRESS

Default I²C address for BQ27441.

DEVICE_TYPE_ID

Expected device type ID.

UNSEAL_KEY

Unseal key value (sent twice to unseal device).