oled_i2c

Documentation

Index

• type OLED
  • func Open(o driver.Opener, addr, w, h int) (*OLED, error)
  • func (o *OLED) Clear() error
  • func (o *OLED) Close() error
  • func (o *OLED) DisableScroll() error
  • func (o *OLED) Draw() error
  • func (o *OLED) EnableScroll(startY, endY int) error
  • func (o *OLED) Height() int
  • func (o *OLED) Init() (err error)
  • func (o *OLED) Off() error
  • func (o *OLED) On() error
  • func (o *OLED) SetImage(x, y int, img image.Image) error
  • func (o *OLED) SetPixel(x, y int, v byte) error
  • func (o *OLED) Width() int

Types

type OLED

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

OLED represents an SSD1306 OLED display.

func Open

func Open(o driver.Opener, addr, w, h int) (*OLED, error)

Open opens an SSD1306 OLED display. Once not in use, it needs to be close by calling Close. The default width is 128, height is 64 if zero values are given.

func (*OLED) Clear

func (o *OLED) Clear() error

Clear clears the entire display.

func (*OLED) Close

func (o *OLED) Close() error

Close closes the display.

func (*OLED) DisableScroll

func (o *OLED) DisableScroll() error

DisableScroll stops the scrolling on the display.

func (*OLED) Draw

func (o *OLED) Draw() error

Draw draws the intermediate pixel buffer on the display. See SetPixel and SetImage to mutate the buffer.

func (*OLED) EnableScroll

func (o *OLED) EnableScroll(startY, endY int) error

EnableScroll starts scrolling in the horizontal direction starting from startY column to endY column.

func (*OLED) Height

func (o *OLED) Height() int

Height returns the display height.

func (*OLED) Init

func (o *OLED) Init() (err error)

Init sets up the display for writing

func (*OLED) Off

func (o *OLED) Off() error

Off turns off the display if it is on.

func (*OLED) On

func (o *OLED) On() error

On turns on the display if it is off.

func (*OLED) SetImage

func (o *OLED) SetImage(x, y int, img image.Image) error

SetImage draws an image on the display buffer starting from x, y. A call to Draw is required to display it on the OLED display.

func (*OLED) SetPixel

func (o *OLED) SetPixel(x, y int, v byte) error

SetPixel set and x,y pixel to on or off

func (*OLED) Width

func (o *OLED) Width() int

Width returns the display width.