2021-01-29 06:31:58 -05:00
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[](https://github.com/marketplace/actions/arduino_ci)
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[](https://github.com/RobTillaart/PAR27979/blob/master/LICENSE)
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[](https://github.com/RobTillaart/PAR27979/releases)
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2020-11-27 05:28:57 -05:00
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# PAR27979
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2013-09-30 12:12:19 -04:00
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2020-11-27 05:28:57 -05:00
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Arduino library for the Parallax 27979 serial display
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## Description
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The library is essentially a wrapper around a Stream, typically Serial,
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Serial2 (3,4..) or newSoftSerial or equivalent.
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This stream is given as parameter in the constructor.
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2021-01-29 06:31:58 -05:00
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## Interface
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2020-11-27 05:28:57 -05:00
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The library implements the **Print** interface to print integers
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floats and strings and all printable types.
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The library does not keep any state information, it only implements a few
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methods to make working with it easier.
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### Base
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- **PAR27979(Stream \* str)** constructor, used stream as parameter.
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- **on()** switch display on
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- **off()** switch display off
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- **clearHome()** clear the display
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- **backlightOn()** enable the backlight
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- **backLightOff()** disable the backlight
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### Cursor Movement
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- **cursorLeft()** move cursor
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- **cursorRight()** move cursor
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- **lineFeed()** idem
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- **formFeed()** idem
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- **gotoXY(x, y)**
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### Sound support
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- **octave(octave)** octave = 3 4 5 6 7
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- **duration(duration)** duration = 1 2 4 8 16 32 64
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- **play(note)** note = 0 1 2 3 4 5 6 7 8 9 10 11 0=A 1=A# etc
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- **noSound()**
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## Support Parallax 27976 & 27977
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Although not tested, the functions should work with the
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Parallax 27976 and 27977 displays too.
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2021-01-29 06:31:58 -05:00
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## Todo
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- baudrate?
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2020-11-27 05:28:57 -05:00
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## Operation
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See example
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