EBOLED Class Reference

API for EBOLED spi controlled OLED display. More...

Detailed Description

• ID: eboled
• Name: SparkFun Block for Intel Edison - OLED
• Other Names: ssd1306
• Category: display
• Manufacturer: sparkfun
• Link: https://www.sparkfun.com/products/13035
• Connection: spi

The EBOLED is an ssd1306 with some modifications to work as an Edison Block. It is a 64x48 pixel OLED display that connects directly to an edison via it's 80-pin connector. Edison Blocks are stackable modules created by Sparkfun.

This block has some buttons on it that can be accessed using standard GPIO – this driver only concerns itself with the display.

OLED Sensor image provided by SparkFun* under CC BY 2.0.

    // Instantiate an Edison Block OLED using default values
    upm::EBOLED lcd;

    lcd.clear();
    lcd.setCursor(10, 15);
    lcd.write("Hello");
    lcd.setCursor(30, 15);
    lcd.write("World!");
    lcd.refresh();

    cout << "Sleeping for 5 seconds..." << endl;
    upm_delay(5);

Public Member Functions
	EBOLED (int spi=EBOLED_DEFAULT_SPI_BUS, int CD=EBOLED_DEFAULT_CD, int reset=EBOLED_DEFAULT_RESET)
	~EBOLED ()
mraa::Result	refresh ()
mraa::Result	write (std::string msg)
mraa::Result	setCursor (int row, int column)
void	setTextColor (uint8_t textColor)
void	setTextSize (uint8_t size)
void	setTextWrap (uint8_t wrap)
void	drawChar (uint8_t x, uint8_t y, uint8_t data, uint8_t color, uint8_t size)
mraa::Result	clear ()
void	clearScreenBuffer ()
mraa::Result	home ()
void	drawPixel (int8_t x, int8_t y, uint8_t color=COLOR_WHITE)
void	drawLine (int8_t x0, int8_t y0, int8_t x1, int8_t y1, uint8_t color=COLOR_WHITE)
void	drawLineHorizontal (int8_t x, int8_t y, uint8_t width, uint8_t color=COLOR_WHITE)
void	drawLineVertical (int8_t x, int8_t y, uint8_t height, uint8_t color=COLOR_WHITE)
void	drawRectangle (int8_t x, int8_t y, uint8_t width, uint8_t height, uint8_t color=COLOR_WHITE)
void	drawRoundedRectangle (int8_t x, int8_t y, int8_t width, int8_t height, int16_t radius, uint8_t color)
void	drawRectangleFilled (int8_t x, int8_t y, uint8_t width, uint8_t height, uint8_t color=COLOR_WHITE)
void	drawTriangle (int8_t x0, int8_t y0, int8_t x1, int8_t y1, int8_t x2, int8_t y2, uint8_t color=COLOR_WHITE)
void	drawTriangleFilled (int8_t x0, int8_t y0, int8_t x1, int8_t y1, int8_t x2, int8_t y2, uint8_t color)
void	drawCircle (int16_t x0, int16_t y0, int16_t radius, uint8_t color=COLOR_WHITE)
void	drawRoundCorners (int8_t x0, int8_t y0, int16_t radius, uint8_t cornername, uint8_t color)
void	drawCircleFilled (int8_t x0, int8_t y0, int16_t radius, uint8_t color)
void	drawRoundedCornersFilled (int8_t x0, int8_t y0, int16_t radius, uint8_t cornername, int16_t delta, uint8_t color)
void	fillScreen (uint8_t color=COLOR_WHITE)
Public Member Functions inherited from LCD
mraa::Result	write (int x, int y, std::string msg)
std::string	name ()

Protected Member Functions
mraa::Result	command (uint8_t cmd)
mraa::Result	data (uint16_t data)
mraa::Result	writeChar (uint8_t value)
mraa::Result	setAddressingMode (displayAddressingMode mode)

Additional Inherited Members
Protected Attributes inherited from LCD
std::string	m_name

Constructor & Destructor Documentation

EBOLED	(	int	spi = EBOLED_DEFAULT_SPI_BUS,
		int	CD = EBOLED_DEFAULT_CD,
		int	reset = EBOLED_DEFAULT_RESET
	)

EBOLED Constructor. Note that you will not have any choice as to the pins used, so they are all set to default values.

Parameters

spi	spi bus to use
CD	Command/Data select pin
reset	reset pin

~EBOLED

(

)

EBOLED Destructor

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Member Function Documentation

mraa::Result refresh

(

)

Draw the buffer to screen.

Returns

result of operation

mraa::Result write ( std::string  msg )

virtual

Write a string to LCD

Parameters

msg	the std::string to write to display, note only ascii chars are supported

Returns

result of operation

Implements LCD.

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mraa::Result setCursor ( int  row, int  column  )

virtual

Set cursor to a coordinate

Parameters

row	Axis on the vertical scale. This device supports 6 rows.
column	Axis on the horizontal scale This device supports 64 columns

Returns

result of operation

Implements LCD.

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void setTextColor

(

uint8_t

textColor

)

Sets a text color for a message

Parameters

textColor

Font color: COLOR_WHITE, COLOR_BLACK or COLOR_XOR

void setTextSize

(

uint8_t

size

)

Sets the size of the font

Parameters

size

Font size

void setTextWrap

(

uint8_t

wrap

)

Wraps a printed message

Parameters

wrap	True (1) or false (0)

void drawChar	(	uint8_t	x,
		uint8_t	y,
		uint8_t	data,
		uint8_t	color,
		uint8_t	size
	)

Write a single character to the screen.

Parameters

x	Axis on the horizontal scale
y	Axis on the vertical scale
data	Character to write
color	Character color
size	Size of the font

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mraa::Result clear ( )

virtual

Clear display

Returns

result of operation

Implements LCD.

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mraa::Result home ( )

virtual

Return to coordinate 0,0

Returns

result of operation

Implements LCD.

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void drawPixel	(	int8_t	x,
		int8_t	y,
		uint8_t	color = COLOR_WHITE
	)

Write a single pixel to the screen buffer. Can do an specific color write or toggle (xor) a pixel.

Parameters

x	the x position of the pixel
y	the y position of the pixel
color	pixel is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawLine	(	int8_t	x0,
		int8_t	y0,
		int8_t	x1,
		int8_t	y1,
		uint8_t	color = COLOR_WHITE
	)

Draw a line to the screen buffer.

Parameters

x0	the x position of the beginning of the line
y0	the y position of the beginning of the line
x1	the x position of the end of the line
y1	the y position of the end of the line
color	line is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawLineHorizontal	(	int8_t	x,
		int8_t	y,
		uint8_t	width,
		uint8_t	color = COLOR_WHITE
	)

Draw a horizontal line to the screen buffer.

Parameters

x	the x position of the beginning of the line
y	the y position of the beginning of the line
width	is the horizontal length of the line
color	line is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawLineVertical	(	int8_t	x,
		int8_t	y,
		uint8_t	height,
		uint8_t	color = COLOR_WHITE
	)

Draw a vertical line to the screen buffer.

Parameters

x	the x position of the beginning of the line
y	the y position of the beginning of the line
height	is the vertical length of the line
color	line is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawRectangle	(	int8_t	x,
		int8_t	y,
		uint8_t	width,
		uint8_t	height,
		uint8_t	color = COLOR_WHITE
	)

Draw a rectangle to the screen buffer.

Parameters

x	the left edge
y	the top edge
width	sets the right edge
height	bottom edge
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawRoundedRectangle	(	int8_t	x,
		int8_t	y,
		int8_t	width,
		int8_t	height,
		int16_t	radius,
		uint8_t	color
	)

Draw a rectangle with rounded corners to the screen buffer.

Parameters

x	the left edge
y	the top edge
width	sets the right edge
height	bottom edge
radius	of the rounded corners
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawRectangleFilled	(	int8_t	x,
		int8_t	y,
		uint8_t	width,
		uint8_t	height,
		uint8_t	color = COLOR_WHITE
	)

Draw a filled rectangle to the screen buffer.

Parameters

x	the left edge
y	the top edge
width	sets the right edge
height	bottom edge
color	fill color is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawTriangle	(	int8_t	x0,
		int8_t	y0,
		int8_t	x1,
		int8_t	y1,
		int8_t	x2,
		int8_t	y2,
		uint8_t	color = COLOR_WHITE
	)

Draw a triangle to the screen buffer.

Parameters

x0	the x coordinate of the first corner
y0	the y coordinate of the first corner
x1	the x coordinate of the second corner
y1	the y coordinate of the second corner
x2	the x coordinate of the third corner
y2	the y coordinate of the third corner
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawTriangleFilled	(	int8_t	x0,
		int8_t	y0,
		int8_t	x1,
		int8_t	y1,
		int8_t	x2,
		int8_t	y2,
		uint8_t	color
	)

Draw a filled triangle to the screen buffer.

Parameters

x0	the x coordinate of the first corner
y0	the y coordinate of the first corner
x1	the x coordinate of the second corner
y1	the y coordinate of the second corner
x2	the x coordinate of the third corner
y2	the y coordinate of the third corner
color	fill color is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawCircle	(	int16_t	x0,
		int16_t	y0,
		int16_t	radius,
		uint8_t	color = COLOR_WHITE
	)

Draw a circle to the screen buffer.

Parameters

x0	the x coordinate of the circle's center
y0	the y coordinate of the circle's center
radius	the radius of the circle
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawRoundCorners	(	int8_t	x0,
		int8_t	y0,
		int16_t	radius,
		uint8_t	cornername,
		uint8_t	color
	)

Draw a quarter circle arc to the screen buffer.

Parameters

x0	the x coordinate of the arc's center
y0	the y coordinate of the arc's center
radius	the radius of the arc
cornername	denotes which of the 4 quarters to draw - 1,2,4,8
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawCircleFilled	(	int8_t	x0,
		int8_t	y0,
		int16_t	radius,
		uint8_t	color
	)

Draw a filled circle to the screen buffer.

Parameters

x0	the x coordinate of the circle's center
y0	the y coordinate of the circle's center
radius	the radius of the circle
color	outline is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void drawRoundedCornersFilled	(	int8_t	x0,
		int8_t	y0,
		int16_t	radius,
		uint8_t	cornername,
		int16_t	delta,
		uint8_t	color
	)

Draw a quarter pie to the screen buffer.

Parameters

x0	the x coordinate of the arc's center
y0	the y coordinate of the arc's center
radius	the radius of the arc
cornername	denotes which of the 4 quarters to draw - 1,2,4,8
color	fill color is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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void fillScreen

(

uint8_t

color = COLOR_WHITE

)

Fill the screen buffer with specified color.

Parameters

color

fill color is COLOR_WHITE, COLOR_BLACK or COLOR_XOR

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Inheritance diagram for EBOLED:

Collaboration diagram for EBOLED:

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The documentation for this class was generated from the following files:

• src/lcd/eboled.hpp
• src/lcd/eboled.cxx