Crate ina226

This is a platform agnostic Rust driver for the INA226, an I2C output current/voltage/power monitor with alerts, using the embedded-hal traits.

This driver allows you to:

• Callibrate the device. See callibrate().
• Read the shunt voltage. See shunt_voltage_microvolts().
• Read the bus voltage. See bus_voltage_millivolts().
• Read the current. See current_amps().
• Read the power. See power_watts().

The device

The INA226 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, conversion times, and averaging, combined with an internal multiplier, enable direct readouts of current in amperes and power in watts.

The INA226 senses current on common-mode bus voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device operates from a single 2.7-V to 5.5-V supply, drawing a typical of 330 µA of supply current. The device is specified over the operating temperature range between –40°C and 125°C and features up to 16 programmable addresses on the I2C-compatible interface.

Datasheet:

• INA226

Structs

• Config
  The state of the configuration register.
• INA226
  INA226 voltage/current/power monitor
• MaskEnableFlags
  The Mask/Enable Register selects the function that is enabled to control the Alert pin as well as how that pin functions. If multiple functions are enabled, the highest significant bit position Alert Function (D15-D11) takes priority and responds to the Alert Limit Register.

Enums

• AVG
  Determines the number of samples that are collected and averaged.
• MODE
  Selects continuous, triggered, or power-down mode of operation.
• VBUSCT
  Sets the conversion time for the bus voltage measurement.
• VSHCT
  Sets the conversion time for the shunt voltage measurement.

Constants

• DEFAULT_ADDRESS
  Default address of INA226 devices.