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class LCD -- LCD control for the LCD touch-sensor pyskin

The LCD class is used to control the LCD on the LCD touch-sensor pyskin, LCD32MKv1.0. The LCD is a 128x32 pixel monochrome screen, part NHD-C12832A1Z.

The pyskin must be connected in either the X or Y positions, and then an LCD object is made using:

lcd = pyb.LCD('X')      # if pyskin is in the X position
lcd = pyb.LCD('Y')      # if pyskin is in the Y position

Then you can use:

lcd.light(True)                 # turn the backlight on
lcd.write('Hello world!\n')     # print text to the screen

This driver implements a double buffer for setting/getting pixels. For example, to make a bouncing dot, try:

x = y = 0
dx = dy = 1
while True:
    # update the dot's position
    x += dx
    y += dy

    # make the dot bounce of the edges of the screen
    if x <= 0 or x >= 127: dx = -dx
    if y <= 0 or y >= 31: dy = -dy

    lcd.fill(0)                 # clear the buffer
    lcd.pixel(x, y, 1)          # draw the dot
    lcd.show()                  # show the buffer
    pyb.delay(50)               # pause for 50ms

コンストラクタ

class pyb.LCD(skin_position)

Construct an LCD object in the given skin position. skin_position can be 'X' or 'Y', and should match the position where the LCD pyskin is plugged in.

メソッド

LCD.command(instr_data, buf)

Send an arbitrary command to the LCD. Pass 0 for instr_data to send an instruction, otherwise pass 1 to send data. buf is a buffer with the instructions/data to send.

LCD.contrast(value)

Set the contrast of the LCD. Valid values are between 0 and 47.

LCD.fill(colour)

Fill the screen with the given colour (0 or 1 for white or black).

This method writes to the hidden buffer. Use show() to show the buffer.

LCD.get(x, y)

Get the pixel at the position (x, y). Returns 0 or 1.

This method reads from the visible buffer.

LCD.light(value)

Turn the backlight on/off. True or 1 turns it on, False or 0 turns it off.

LCD.pixel(x, y, colour)

Set the pixel at (x, y) to the given colour (0 or 1).

This method writes to the hidden buffer. Use show() to show the buffer.

LCD.show()

Show the hidden buffer on the screen.

LCD.text(str, x, y, colour)

Draw the given text to the position (x, y) using the given colour (0 or 1).

This method writes to the hidden buffer. Use show() to show the buffer.

LCD.write(str)

Write the string str to the screen. It will appear immediately.