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other_boards:midi_keyboard [2017/07/05 23:22]
admin [MIDI] 		other_boards:midi_keyboard [2019/03/26 18:47]
admin removed
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 ---- ----
 +==== Code ====
 +{{ :​other_boards:​midi_keyboard_04.zip |}}\\
  
 +----
 ==== MCP23017 ==== ==== MCP23017 ====
 === I2C === === I2C ===
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    ​B2 ​      ​G#​1 ​       10    ​B2 ​      ​G#​1 ​       10
    ​B3 ​      ​A1 ​        11    ​B3 ​      ​A1 ​        11
-   ​B4 ​                 12+   ​B4 ​   ​Switch ​       ​12
    ​B5 ​  ​Octave Up      13    ​B5 ​  ​Octave Up      13
    ​B6 ​  ​Octave Down    14    ​B6 ​  ​Octave Down    14
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    ​B3 ​      ​A2 ​        11    ​B3 ​      ​A2 ​        11
    ​B4 ​      ​C3 ​        12    ​B4 ​      ​C3 ​        12
-   ​B5 ​                 13 +   ​B5 ​  Program Up     13 
-   ​B6 ​    ​Program ​     14+   ​B6 ​  ​Program ​Down   14
    ​B7 ​                 15    ​B7 ​                 15
        
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 === Bit Converter === === Bit Converter ===
 [[http://​en.radzio.dxp.pl/​bitmap_converter/​]]\\ [[http://​en.radzio.dxp.pl/​bitmap_converter/​]]\\
 +To convert a picture one need a 128x64 pixel, B/W, 1Bit Bitmap.\\
 +Settings:\\
 +   Byte Orientation:​ vertical
 +   ​Width:​ 128  Hight: 64
 +   Size Endianness: Little
 +   ​Pixel/​Byte 8
  
 === Example Code === === Example Code ===