ina219

Documentation

Index

• Constants
• type Calibration
• type Config
• type Device
  • func New(bus drivers.I2C) Device
  • func (d *Device) Configure(config *Config) bool
  • func (d *Device) GetCurrent_uA() int32
  • func (d *Device) GetPower_uW() int32
  • func (d *Device) GetVoltage_mV() int16

Constants

const (
	REG_CONFIG byte = iota
	REG_SHUNT_VOLTAGE
	REG_BUS_VOLTAGE
	REG_POWER
	REG_CURRENT
	REG_CALIBRATION
)

Register names and addresses.

const Address = 0x40

The I2C address which this device listens to by default.

Types

type Calibration

type Calibration int

const (
	V32A2 Calibration = iota
	V32A1
	V16mA400
)

type Config

type Config struct {
	CalibrationValue   uint16
	ConfigValue        uint16
	CurrentDivider_mA  uint16
	PowerMultiplier_uW uint16
}

type Device

type Device struct {
	// contains filtered or unexported fields
}

Device wraps an I2C connection to a INA219 device.

func New

func New(bus drivers.I2C) Device

New creates a new INA219 connection. The I2C bus must already be configured.

This function only creates the Device object. It does not touch the device.

func (*Device) Configure

func (d *Device) Configure(config *Config) bool

Configure sets up the device for communication.

func (*Device) GetCurrent_uA

func (d *Device) GetCurrent_uA() int32

func (*Device) GetPower_uW

func (d *Device) GetPower_uW() int32

func (*Device) GetVoltage_mV

func (d *Device) GetVoltage_mV() int16