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4 text commands – Matrix Orbital LCD/VFD Legacy User Manual

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3.4 Text Commands

In this section commands are identified by their names and decimal values. Hex and ASCII equivalents

are given in the summary.

3.4.1 Auto scroll on (254 81)

When auto scrolling is on, it causes the display to shift the entire display’s contents up to make room for

a new line of text when the text reaches the scroll position (the bottom right character position).

3.4.2 Auto scroll off (254 82)

When auto scrolling is disabled, text will wrap to the top left corner of the display area. Existing text in

the display area is not erased before new text is placed. A series of ’spaces’ followed by a “Cursor home”

command may be used to erase the top line of text.

3.4.3 Set cursor position (254 71 [column] [row])

This command sets the cursor position (text insertion point) to the [column] and [row] specified. Columns

have values from 1 to 20 (0x01 to 0x14) and rows have values of 1 and 2 (0x01 and 0x02).

3.4.4 Send cursor home (254 72)

This command moves the cursor position (text insertion point) to the top left of the display area.

3.4.5 Turn on underline cursor (254 74)

Turns on the underline cursor. The cursor shows the current text insertion point. Both underline and

blinking cursors may be turned on or off independently. The cursor is off by default.

3.4.6 Turn off underline cursor (254 75)

Turns off the underline cursor. Does not affect the blinking block cursor.

3.4.7 Turn on block (blinking) cursor (254 83)

Turns on the blinking block cursor. The cursor shows the current text insertion point. Both blinking and

underline cursors may be turned on or off independently. The cursor is off by default.

Matrix Orbital

LCD4041

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