ST7735 Class Reference

API for the ST7735 LCD. More...

Detailed Description

• ID: st7735
• Name: ST7735 LCD
• Category: display
• Manufacturer: adafruit
• Link: http://www.adafruit.com/product/358
• Connection: spi

This module defines the interface for the ST7735 display library

        upm_st7735.ST7735 lcd = new upm_st7735.ST7735((short) 7, (short) 4, (short) 9, (short) 8);

        lcd.fillScreen(upm_st7735.javaupm_st7735Constants.ST7735_RED);
        lcd.refresh();

        lcd.fillScreen(upm_st7735.javaupm_st7735Constants.ST7735_CYAN);
        lcd.refresh();

        lcd.fillScreen(upm_st7735.javaupm_st7735Constants.ST7735_BLACK);
        lcd.refresh();

        lcd.drawLine((short) 10, (short) 10, (short) 10, (short) 100,
                upm_st7735.javaupm_st7735Constants.ST7735_MAGENTA);
        lcd.drawLine((short) 20, (short) 20, (short) 10, (short) 100,
                upm_st7735.javaupm_st7735Constants.ST7735_YELLOW);
        lcd.drawLine((short) 30, (short) 30, (short) 50, (short) 100,
                upm_st7735.javaupm_st7735Constants.ST7735_WHITE);
        lcd.refresh();

        lcd.drawPixel((short) 20, (short) 20, upm_st7735.javaupm_st7735Constants.ST7735_GREEN);
        lcd.refresh();

        lcd.drawTriangle((short) 50, (short) 50, (short) 80, (short) 80, (short) 60, (short) 90,
                upm_st7735.javaupm_st7735Constants.ST7735_GREEN);
        lcd.refresh();

        lcd.drawCircle((short) 100, (short) 110, (short) 10,
                upm_st7735.javaupm_st7735Constants.ST7735_BLUE);
        lcd.refresh();

        lcd.setTextWrap((short) 0);

        lcd.setCursor((short) 0, (short) 30);
        lcd.setTextColor(upm_st7735.javaupm_st7735Constants.ST7735_RED,
                upm_st7735.javaupm_st7735Constants.ST7735_RED);
        lcd.setTextSize((short) 1);
        lcd.print("Hello World!");

        lcd.setCursor((short) 10, (short) 50);
        lcd.setTextColor(upm_st7735.javaupm_st7735Constants.ST7735_RED,
                upm_st7735.javaupm_st7735Constants.ST7735_YELLOW);
        lcd.setTextSize((short) 2);
        lcd.print("BIG");

        lcd.refresh();

Public Member Functions
synchronized void	delete ()
	ST7735 (short csLCD, short cSD, short rs, short rst)
String	name ()
void	initModule ()
void	configModule ()
void	write (short value)
void	data (short value)
void	executeCMDList (byte[] addr)
void	setAddrWindow (short x0, short y0, short x1, short y1)
void	drawPixel (short x, short y, int color)
void	refresh ()
int	lcdCSOn ()
int	lcdCSOff ()
int	sdCSOn ()
int	sdCSOff ()
int	rsHIGH ()
int	rsLOW ()
Public Member Functions inherited from GFX
synchronized void	delete ()
void	setAddrWindow (short x0, short y0, short x1, short y1)
void	drawPixel (short x, short y, int color)
void	refresh ()
void	drawChar (short x, short y, short data, int color, int bg, short size)
void	print (String msg)
int	setPixel (int x, int y, int color)
void	fillScreen (int color)
void	fillRect (short x, short y, short w, short h, int color)
void	drawFastVLine (short x, short y, short h, int color)
void	drawLine (short x0, short y0, short x1, short y1, int color)
void	drawTriangle (short x0, short y0, short x1, short y1, short x2, short y2, int color)
void	drawCircle (short x, short y, short r, int color)
void	setCursor (short x, short y)
void	setTextColor (int textColor, int textBGColor)
void	setTextSize (short size)
void	setTextWrap (short wrap)
void	setM_height (int value)
int	getM_height ()
void	setM_width (int value)
int	getM_width ()
void	setM_textSize (int value)
int	getM_textSize ()
void	setM_textColor (int value)
int	getM_textColor ()
void	setM_textBGColor (int value)
int	getM_textBGColor ()
void	setM_cursorX (int value)
int	getM_cursorX ()
void	setM_cursorY (int value)
int	getM_cursorY ()
void	setM_wrap (int value)
int	getM_wrap ()

Constructor & Destructor Documentation

ST7735	(	short	csLCD,
		short	cSD,
		short	rs,
		short	rst
	)

Instantiates an ST7735 object

Parameters

csLCD	LCD chip select pin
cSD	SD card chip select pin
rs	Data/command pin
rst	Reset pin

Member Function Documentation

void configModule

(

)

Configures the chip via the SPI

void data

(

short

value

)

Sends data to an SPI bus (rs must be HIGH)

Parameters

value

Command number

void drawPixel	(	short	x,
		short	y,
		int	color
	)

Sends a pixel color (RGB) to the chip.

Parameters

x	Axis on the horizontal scale
y	Axis on the vertical scale
color	RGB (16-bit) color (R[0-4], G[5-10], B[11-15])

void executeCMDList

(

byte[]

addr

)

Executes a set of commands and data

Parameters

addr	Pointer to the start of the commands/data section

void initModule

(

)

Initializes the module GPIOs

int lcdCSOff

(

)

LCD chip select is HIGH

int lcdCSOn

(

)

LCD chip select is LOW

String name

(

)

Returns the name of the component

void refresh

(

)

Copies the buffer to the chip via the SPI.

int rsHIGH

(

)

Data select is HIGH

int rsLOW

(

)

Data select is LOW

int sdCSOff

(

)

CD card select is HIGH

int sdCSOn

(

)

CD card chip select is LOW

void setAddrWindow	(	short	x0,
		short	y0,
		short	x1,
		short	y1
	)

Sets the window size inside the screen where pixels data is written.

Parameters

x0	First coordinate
y0	First coordinate
x1	Second coordinate
y1	Second coordinate

void write

(

short

value

)

Sends a command to an SPI bus (rs must be LOW)

Parameters

value

Command number

Inheritance diagram for ST7735:

Collaboration diagram for ST7735:

---

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

• /var/lib/jenkins/workspace/upm-doc-stable/build-33/src/st7735/ST7735.java