Adafuit SSD1306

Github Repo	C Header	C source	JS source
mongoose-os-libs/arduino-adafruit-ssd1306	Adafruit_SSD1306.h		api_arduino_ssd1306.js

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JS API

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Colors

Colors

• Adafruit_SSD1306.BLACK
• Adafruit_SSD1306.WHITE
• Adafruit_SSD1306.INVERSE

Adafruit_SSD1306.create_i2c

Adafruit_SSD1306.create_i2c(rst, res)

Create an SSD1306 object for I2C. rst is a number of reset pin, res is the resolution, one of the:

• Adafruit_SSD1306.RES_96_16
• Adafruit_SSD1306.RES_128_32
• Adafruit_SSD1306.RES_128_64

Return value: an object with methods described below. Example:

Adafruit_SSD1306.create_i2c(12, Adafruit_SSD1306.RES_128_32);

Adafruit_SSD1306.create_spi

Adafruit_SSD1306.create_spi(dc, rst, cs, res)

Create an SSD1306 object for SPI. dc is a number of data command pin, rst is a number of reset pin, cs is a number of chip select pin, res is the resolution, one of the:

• Adafruit_SSD1306.RES_96_16
• Adafruit_SSD1306.RES_128_32
• Adafruit_SSD1306.RES_128_64

Return value: an object with methods described below. Example:

Adafruit_SSD1306.create_spi(10, 12, 11, Adafruit_SSD1306.RES_128_32);

mySSD1306.close

mySSD1306.close()

Close Adafruit_SSD1306 instance. Return value: none.

mySSD1306.begin

mySSD1306.begin(vccst, i2caddr, reset)

Initialize the display. vccst is a VCC state, one of those:

• Adafruit_SSD1306.EXTERNALVCC
• Adafruit_SSD1306.SWITCHCAPVCC i2caddr is an I2C address (ignored if create_spi was used). reset is a boolean; if true, then the display controller will be reset. Return value: none. Example:

mySSD1306.begin(Adafruit_SSD1306.EXTERNALVCC, 0x42, true);

mySSD1306.ssd1306_command

mySSD1306.ssd1306_command(cmd)

Send an arbitrary command cmd, which must be a number from 0 to 255. Return value: none.

mySSD1306.clearDisplay

mySSD1306.clearDisplay()

Clear display. Return value: none.

mySSD1306.invertDisplay

mySSD1306.invertDisplay(i)

Set invert mode: 0 - don't invert; 1 - invert. Return value: none.

mySSD1306.display

mySSD1306.display()

Put image data to the display. Return value: none.

mySSD1306.startScrollRight

mySSD1306.startScrollRight()

Activate a right handed scroll for rows from start to stop. Return value: none.

mySSD1306.startScrollLeft

mySSD1306.startScrollLeft()

Activate a left handed scroll for rows from start to stop. Return value: none.

mySSD1306.startScrollDiagRight

mySSD1306.startScrollDiagRight()

Activate a diagonal scroll for rows from start to stop. Return value: none.

mySSD1306.startScrollDiagLeft

mySSD1306.startScrollDiagLeft()

Activate a diagonal scroll for rows from start to stop. Return value: none.

mySSD1306.stopScroll

mySSD1306.stopScroll()

Stop scrolling. Return value: none.

mySSD1306.dim

mySSD1306.dim(dim)

Set dim mode: dim is 1: display is dimmed; dim is 0: display is normal. Return value: none.

mySSD1306.drawPixel

mySSD1306.drawPixel(x, y, color)

Set a single pixel with coords x, y to have the given color. See available colors above. Return value: none.

mySSD1306.drawFastVLine

mySSD1306.drawFastVLine(x, y, h, color)

Draw a vertical line with height h starting from x, y, with color color. See available colors above. Return value: none. Example:

mySSD1306.drawFastVLine(10, 5, 15, Adafruit_SSD1306.WHITE);

mySSD1306.drawFastHLine

mySSD1306.drawFastHLine(x, y, w, color)

Draw a horizontal line of width w starting from x, y, with color color. See available colors above. Return value: none. Example:

mySSD1306.drawFastHLine(10, 10, 20, Adafruit_SSD1306.WHITE);

mySSD1306.drawCircle

mySSD1306.drawCircle(x, y, r, color)

Draw a circle with the radius r, centered at from x, y, with color color. See available colors above. Return value: none. Example:

mySSD1306.drawCircle(10, 10, 20, 10, 3, Adafruit_SSD1306.WHITE);

mySSD1306.fillCircle

mySSD1306.fillCircle(x, y, r, color)

Draw a filled circle with the radius r, centered at from x, y, with color color. See available colors above. Return value: none. Example:

mySSD1306.fillCircle(10, 10, 5, Adafruit_SSD1306.WHITE);

mySSD1306.drawTriangle

mySSD1306.drawTriangle(x0, y0, x1, y1, x2, y2, color)

Draw a triangle at the given coordinates, with color color. See available colors above. Return value: none. Example:

mySSD1306.drawTriangle(10, 0, 20, 20, 0, 20, Adafruit_SSD1306.WHITE);

mySSD1306.drawRoundRect

mySSD1306.drawRoundRect(x0, y0, w, h, radius, color)

Draw a rectangle with round corners; x0, y0 are the coords of the left-top corner, w is width, h is height, radius is the corners radius, with color color. See available colors above. Return value: none. Example:

mySSD1306.drawRoundRect(10, 10, 20, 10, 3, Adafruit_SSD1306.WHITE);

mySSD1306.drawRoundRect

mySSD1306.drawRoundRect(x0, y0, w, h, radius, color)

Draw a filled rectangle with round corners; x0, y0 are the coords of the left-top corner, w is width, h is height, radius is the corners radius, with color color. See available colors above. Return value: none. Example:

mySSD1306.fillRoundRect(10, 10, 20, 10, 3, Adafruit_SSD1306.WHITE);

mySSD1306.drawChar

mySSD1306.drawChar(x, y, c, color, bg, size)

Draw a character c starting at the point x, y, with the color color (see available colors above). If bg is different from color, then the background is filled with bg; otherwise bacground is left intact.

There is only one font (to save space) and it's meant to be 5x8 pixels, but an optional size parameter which scales the font by this factor (e.g. size=2 will render the text at 10x16 pixels per character). Return value: none. Example:

mySSD1306.drawChar(10, 10, 'a',
                   Adafruit_SSD1306.WHITE, Adafruit_SSD1306.WHITE, 1);

mySSD1306.setCursor

mySSD1306.setCursor(x, y)

Set text cursor for the following calls to mySSD1306.write(). See example for write() below. Return value: none.

mySSD1306.setTextColor

mySSD1306.setTextColor(color)

Set text color for the following calls to mySSD1306.write(). See available colors above. See example for write() below. Return value: none.

mySSD1306.setTextColorBg

mySSD1306.setTextColorBg(color, bg)

Set text color and background color for the following calls to mySSD1306.write(). If bg is equal to the color, then the background will be left intact while drawing characters. See example for write() below. Return value: none.

mySSD1306.setTextSize

mySSD1306.setTextSize(size)

Set text color for the following calls to mySSD1306.write(). There is only one font (to save space) and it's meant to be 5x8 pixels, but an optional size parameter which scales the font by this factor (e.g. size=2 will render the text at 10x16 pixels per character). See example for write() below. Return value: none.

mySSD1306.setTextWrap

mySSD1306.setTextWrap(wrap)

Set text wrap mode (true or false) for the following calls to mySSD1306.write(). See example for write() below. Return value: none.

mySSD1306.write

mySSD1306.write(str)

Write given string str using the parameters set before (setCursor(), setTextColor(), setTextColorBg(), setTextSize(), setTextWrap()) Return value: 1. Example:

mySSD1306.setCursor(10, 10);
mySSD1306.setTextColor(Adafruit_SSD1306.WHITE);
mySSD1306.setTextSize(2);
mySSD1306.setTextWrap(true);
mySSD1306.write("Hello world!");

mySSD1306.height

mySSD1306.height()

Return display height in pixels.

mySSD1306.width

mySSD1306.width()

Return display width in pixels.

mySSD1306.setRotation

mySSD1306.setRotation(rot)

Set display rotation:

• 0: no rotation
• 1: rotated at 90 degrees
• 2: rotated at 180 degrees
• 3: rotated at 270 degrees

mySSD1306.getRotation

mySSD1306.getRotation()

Return rotation previously set with setRotation()

mySSD1306.getCursorX

mySSD1306.getCursorX()

Return cursor X coordinate, previously set with setCursor().

mySSD1306.getCursorY

mySSD1306.getCursorY()

Return cursor Y coordinate, previously set with setCursor().

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