SSD1308 Class Reference

C++ API for SSD1308 i2c controlled OLED displays. More...

Detailed Description

The SSD1308 is a 128x64 Dot matrix OLED/PLED segment driver with controller. This implementation was tested using the Grove LED 128×64 Display module which is an OLED monochrome display

    upm::SSD1308 *lcd = new upm::SSD1308(BUS_NUMBER, DEVICE_ADDRESS);

    lcd->clear();
    lcd->draw(intel_logo, 1024);

    lcd->close();

Public Member Functions
	SSD1308 (int bus, int address)
	~SSD1308 ()
mraa_result_t	draw (uint8_t *data, int bytes)
mraa_result_t	write (std::string msg)
mraa_result_t	setCursor (int row, int column)
mraa_result_t	clear ()
mraa_result_t	home ()
Public Member Functions inherited from I2CLcd
	I2CLcd (int bus, int lcdAddress)
mraa_result_t	write (int x, int y, std::string msg)
virtual mraa_result_t	i2Cmd (mraa_i2c_context ctx, uint8_t value)
virtual mraa_result_t	i2cReg (mraa_i2c_context ctx, int deviceAdress, int addr, uint8_t data)
virtual mraa_result_t	i2cData (mraa_i2c_context ctx, uint8_t value)
mraa_result_t	close ()
std::string	name ()

Additional Inherited Members
Protected Attributes inherited from I2CLcd
std::string	m_name
int	m_lcd_control_address
int	m_bus
mraa_i2c_context	m_i2c_lcd_control

Constructor & Destructor Documentation

SSD1308	(	int	bus,
		int	address
	)

SSD1308 Constructor, calls libmraa initialisation functions

Parameters

bus	i2c bus to use
address	the slave address the lcd is registered on

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~SSD1308

(

)

SSD1308 Destructor

Member Function Documentation

mraa_result_t draw	(	uint8_t *	data,
		int	bytes
	)

Draw an image, see examples/python/make_oled_pic.py for an explanation on how the pixels are mapped to bytes

Parameters

data	the buffer to read
bytes	the amount of bytes to read from the pointer

Returns

Result of operation

mraa_result_t 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 I2CLcd.

mraa_result_t setCursor ( int  row, int  column  )

virtual

Set cursor to a coordinate

Parameters

row	The row to set cursor to
column	The column to set cursor to

Returns

Result of operation

Implements I2CLcd.

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mraa_result_t clear ( )

virtual

Clear display from characters

Returns

Result of operatio

Implements I2CLcd.

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mraa_result_t home ( )

virtual

Return to coordinate 0,0

Returns

Result of operation

Implements I2CLcd.

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Inheritance diagram for SSD1308:

Collaboration diagram for SSD1308:

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

• /var/lib/jenkins/workspace/upm-doc/src/lcd/ssd1308.h
• /var/lib/jenkins/workspace/upm-doc/src/lcd/ssd1308.cxx