mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-12 02:43:42 +00:00
Alan Wang
45 lines
953 B
Go
45 lines
953 B
Go
package hd44780i2c
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const (
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// commands
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DISPLAY_CLEAR = 0x01
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CURSOR_HOME = 0x02
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ENTRY_MODE = 0x04
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DISPLAY_ON_OFF = 0x08
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CURSOR_DISPLAY_SHIFT = 0x10
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FUNCTION_MODE = 0x20
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CGRAM_SET = 0x40
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DDRAM_SET = 0x80
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// flags for display entry mode
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// CURSOR_DECREASE = 0x00
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CURSOR_INCREASE = 0x02
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// DISPLAY_SHIFT = 0x01
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DISPLAY_NO_SHIFT = 0x00
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// flags for display on/off control
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DISPLAY_ON = 0x04
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DISPLAY_OFF = 0x00
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CURSOR_ON = 0x02
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CURSOR_OFF = 0x00
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CURSOR_BLINK_ON = 0x01
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CURSOR_BLINK_OFF = 0x00
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// flags for function set
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// DATA_LENGTH_8BIT = 0x10
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DATA_LENGTH_4BIT = 0x00
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TWO_LINE = 0x08
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ONE_LINE = 0x00
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FONT_5X10 = 0x04
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FONT_5X8 = 0x00
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// flags for backlight control
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BACKLIGHT_ON = 0x08
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BACKLIGHT_OFF = 0x00
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En = 0x04 // Enable bit
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// Rw = 0x02 // Read/Write bit
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Rs = 0x01 // Register select bit
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)
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