SSD1327 Class Reference

API for SSD1327 I2C-controlled OLED displays. More...

Detailed Description

• ID: ssd1327
• Name: OLED Display
• Other Names: Grove OLED Display 1.12"
• Category: display
• Manufacturer: seeed adafruit
• Link: http://wiki.seeed.cc/Grove-OLED_Display_1.12inch/
• Connection: i2c

SSD1327 is a 96x96 dot-matrix OLED/PLED segment driver with a controller. This implementation was tested using the Grove LED 96*96 Display module, which is an OLED monochrome display.

    upm::SSD1327 lcd(BUS_NUMBER, 0x3C);

    // If you don't set the display to be white, the seeed logo will appear jagged
    lcd.setGrayLevel(12);
    lcd.draw(SeeedLogo, 96 * 96 / 8);

    // Simple print hello world
    for (uint8_t i = 0; i < 12; i++) {
        lcd.setCursor(i, 0);
        lcd.setGrayLevel(i);
        lcd.write("Hello World");
    }

Public Member Functions
	SSD1327 (int bus, int address=0x3C)
	~SSD1327 ()
mraa::Result	draw (uint8_t *data, int bytes)
void	setGrayLevel (uint8_t level)
mraa::Result	write (std::string msg)
mraa::Result	setCursor (int row, int column)
mraa::Result	clear ()
mraa::Result	home ()
Public Member Functions inherited from LCD
mraa::Result	write (int x, int y, std::string msg)
std::string	name ()

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

Constructor & Destructor Documentation

SSD1327	(	int	bus,
		int	address = 0x3C
	)

SSD1327 constructor; calls libmraa initialisation functions

Parameters

bus	I2C bus to use
address	Slave address the LCD is registered on

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~SSD1327

(

)

SSD1327 destructor

Member Function Documentation

mraa::Result draw	(	uint8_t *	data,
		int	bytes
	)

Draws an image; see examples/python/make_oled_pic.py for an explanation of how pixels are mapped to bytes

Parameters

data	Buffer to read
bytes	Number of bytes to read from the pointer

Returns

Result of the operation

void setGrayLevel

(

uint8_t

level

)

Sets the gray level for the LCD panel

Parameters

level

level from 0 to 255

Returns

Result of the operation

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

virtual

Writes a string to the LCD

Parameters

msg	std::string to write to the display; note: only ASCII characters are supported

Returns

Result of the operation

Implements LCD.

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

virtual

Sets the cursor to specified coordinates

Parameters

row	Row to set the cursor to
column	Column to set the cursor to

Returns

Result of the operation

Implements LCD.

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mraa::Result clear ( )

virtual

Clears the display of all characters

Returns

Result of the operation

Implements LCD.

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mraa::Result home ( )

virtual

Returns to the original coordinates (0,0)

Returns

Result of the operation

Implements LCD.

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Inheritance diagram for SSD1327:

Collaboration diagram for SSD1327:

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

• src/lcd/ssd1327.hpp
• src/lcd/ssd1327.cxx