doc: add link to firmware
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@ -44,4 +44,4 @@ By default the LCD is initialized as 2-lines, 5x8 dots, no cursor or blinking.
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To display text on line 1, select the I²C to HD44780 adapter I²C slave, write 1 followed by the ASCII text.
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To display text on line 1, select the I²C to HD44780 adapter I²C slave, write 1 followed by the ASCII text.
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To display text on line 2, select the I²C to HD44780 adapter I²C slave, write 2 followed by the ASCII text.
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To display text on line 2, select the I²C to HD44780 adapter I²C slave, write 2 followed by the ASCII text.
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In case the display is in a very weird state and does not update text, you can re-initialize it by writing 0 after selecting it.
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In case the display is in a very weird state and does not update text, you can re-initialize it by writing 0 after selecting it.
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More commands are described in the firmware.
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More commands are described in the [firmware](https://git.cuvoodoo.info/kingkevin/stm8s/src/branch/i2c_hd44780).
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