devices

type Celsius Milli

type Device interface {
	// Halt stops the device.
	//
	// Unlike a connection, a device cannot be closed, only the port can be
	// closed. On the other hand, a device can be halted. What halting entails
	// depends on the actual device but it should stop motion, sensing or light
	// emission.
	Halt() error
}

type Display interface {
	Device

	// Writer can be used when the native display pixel format is known. Each
	// write must cover exactly the whole screen as a single packed stream of
	// pixels.
	io.Writer
	// ColorModel returns the device native color model.
	//
	// It is generally color.NRGBA for a color display.
	ColorModel() color.Model
	// Bounds returns the size of the output device.
	//
	// Generally displays should have Min at {0, 0} but this is not guaranteed in
	// multiple displays setup or when an instance of this interface represents a
	// section of a larger logical display.
	Bounds() image.Rectangle
	// Draw updates the display with this image starting at 'sp' offset into the
	// display into 'r'. The code will likely be faster if the image is in the
	// display's native color format.
	//
	// To be compatible with draw.Drawer, this function doesn't return an error.
	Draw(r image.Rectangle, src image.Image, sp image.Point)
}

type Environment struct {
	Temperature Celsius
	Pressure    KPascal
	Humidity    RelativeHumidity
}

type Environmental interface {
	Device

	// Sense returns the value read from the sensor. Unsupported metrics are not
	// modified.
	Sense(env *Environment) error
	// SenseContinuous initiates a continuous sensing at the specified interval.
	//
	// It is important to call Halt() once done with the sensing, which will turn
	// the device off and will close the channel.
	SenseContinuous(interval time.Duration) (<-chan Environment, error)
}

type Fahrenheit Milli

type KPascal Milli

type Milli int32

type RelativeHumidity int32