API for the JHD1313M1 I2C controller for HD44780-based displays with an RGB backlight, such as a Grove RGB I2C LCD display. More...

Detailed Description

ID: jhd1313m1
Name: JHD1313M1 Display
Other Names: Grove RGB LCD
Category: display
Manufacturer: seeed adafruit sparkfun
Link: http://www.seeedstudio.com/depot/Grove-LCD-RGB-Backlight-p-1643.html?cPath=34_36
Connection: i2c
Kit: gsk

JHD1313M1 has two I2C addreses: one belongs to a controller, very similar to the upm::Lcm1602 LCD driver, that controls the HD44780-based display, and the other controls only the backlight. This module was tested with the Seeed Grove LCD RGB Backlight v2.0 display that requires 5V to operate.

    // 0x62 RGB_ADDRESS, 0x3E LCD_ADDRESS
    upm::Jhd1313m1 *lcd = new upm::Jhd1313m1(0, 0x3E, 0x62);
    lcd->setCursor(0,0);
    lcd->write("Hello World");
    lcd->setCursor(1,2);
    lcd->write("Hello World");
    printf("Sleeping for 5 seconds\n");
    sleep(5);
    delete lcd;

Public Member Functions
	Jhd1313m1 (int bus, int lcdAddress=0x3E, int rgbAddress=0x62)

	~Jhd1313m1 ()

mraa::Result	scroll (bool direction)

mraa::Result	setColor (uint8_t r, uint8_t g, uint8_t b)

Public Member Functions inherited from Lcm1602
	Lcm1602 (int bus, int address, bool isExpander=true, uint8_t numColumns=16, uint8_t numRows=4)

	Lcm1602 (uint8_t rs, uint8_t enable, uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3, uint8_t numColumns=16, uint8_t numRows=4)

	~Lcm1602 ()

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

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

mraa::Result	clear ()

mraa::Result	home ()

mraa::Result	createChar (uint8_t charSlot, uint8_t charData[])

mraa::Result	displayOn ()

mraa::Result	displayOff ()

mraa::Result	cursorOn ()

mraa::Result	cursorOff ()

mraa::Result	cursorBlinkOn ()

mraa::Result	cursorBlinkOff ()

mraa::Result	scrollDisplayLeft ()

mraa::Result	scrollDisplayRight ()

mraa::Result	entryLeftToRight ()

mraa::Result	entryRightToLeft ()

mraa::Result	autoscrollOn ()

mraa::Result	autoscrollOff ()

Public Member Functions inherited from LCD
mraa::Result	write (int x, int y, std::string msg)

std::string	name ()

Protected Member Functions
virtual mraa::Result	command (uint8_t cmd)

virtual mraa::Result	data (uint8_t data)

Protected Member Functions inherited from Lcm1602
mraa::Result	send (uint8_t value, int mode)

mraa::Result	write4bits (uint8_t value)

mraa::Result	expandWrite (uint8_t value)

mraa::Result	pulseEnable (uint8_t value)

Additional Inherited Members
Protected Attributes inherited from Lcm1602
uint8_t	m_displayControl

uint8_t	m_entryDisplayMode

uint8_t	m_numColumns

uint8_t	m_numRows

int	m_lcd_control_address

mraa::I2c *	m_i2c_lcd_control

Protected Attributes inherited from LCD
std::string	m_name