[226] | 1 | /*
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| 2 | SeeedGrayOLED.cpp - SSD1327 Gray OLED Driver Library
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| 3 | 2011 Copyright (c) Seeed Technology Inc. All right reserved.
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| 4 |
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| 5 | Author: Visweswara R
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| 6 |
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| 7 | This library is free software; you can redistribute it and/or
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| 8 | modify it under the terms of the GNU Lesser General Public
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| 9 | License as published by the Free Software Foundation; either
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| 10 | version 2.1 of the License, or (at your option) any later version.
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| 11 |
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| 12 | This library is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 15 | Lesser General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU Lesser General Public
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| 18 | License along with this library; if not, write to the Free Software
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| 19 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 20 | */
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| 21 |
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| 22 | #include "Arduino.h"
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| 23 |
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| 24 | //#include "WProgram.h"
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| 25 | #include "Wire.h"
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| 26 |
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| 27 | #include "SeeedGrayOLED.h"
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| 28 |
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| 29 | #include <avr/pgmspace.h>
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| 30 |
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| 31 | // 8x8 Font ASCII 32 - 127 Implemented
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| 32 | // Users can modify this to support more characters(glyphs)
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| 33 | // BasicFont is placed in code memory.
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| 34 |
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| 35 | // This font can be freely used without any restriction(It is placed in public domain)
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| 36 | const unsigned char BasicFont[][8] PROGMEM=
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| 37 | {
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| 38 | {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00},
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| 39 | {0x00,0x00,0x5F,0x00,0x00,0x00,0x00,0x00},
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| 40 | {0x00,0x00,0x07,0x00,0x07,0x00,0x00,0x00},
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| 41 | {0x00,0x14,0x7F,0x14,0x7F,0x14,0x00,0x00},
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| 42 | {0x00,0x24,0x2A,0x7F,0x2A,0x12,0x00,0x00},
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| 43 | {0x00,0x23,0x13,0x08,0x64,0x62,0x00,0x00},
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| 44 | {0x00,0x36,0x49,0x55,0x22,0x50,0x00,0x00},
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| 45 | {0x00,0x00,0x05,0x03,0x00,0x00,0x00,0x00},
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| 46 | {0x00,0x1C,0x22,0x41,0x00,0x00,0x00,0x00},
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| 47 | {0x00,0x41,0x22,0x1C,0x00,0x00,0x00,0x00},
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| 48 | {0x00,0x08,0x2A,0x1C,0x2A,0x08,0x00,0x00},
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| 49 | {0x00,0x08,0x08,0x3E,0x08,0x08,0x00,0x00},
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| 50 | {0x00,0xA0,0x60,0x00,0x00,0x00,0x00,0x00},
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| 51 | {0x00,0x08,0x08,0x08,0x08,0x08,0x00,0x00},
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| 52 | {0x00,0x60,0x60,0x00,0x00,0x00,0x00,0x00},
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| 53 | {0x00,0x20,0x10,0x08,0x04,0x02,0x00,0x00},
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| 54 | {0x00,0x3E,0x51,0x49,0x45,0x3E,0x00,0x00},
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| 55 | {0x00,0x00,0x42,0x7F,0x40,0x00,0x00,0x00},
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| 56 | {0x00,0x62,0x51,0x49,0x49,0x46,0x00,0x00},
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| 57 | {0x00,0x22,0x41,0x49,0x49,0x36,0x00,0x00},
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| 58 | {0x00,0x18,0x14,0x12,0x7F,0x10,0x00,0x00},
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| 59 | {0x00,0x27,0x45,0x45,0x45,0x39,0x00,0x00},
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| 60 | {0x00,0x3C,0x4A,0x49,0x49,0x30,0x00,0x00},
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| 61 | {0x00,0x01,0x71,0x09,0x05,0x03,0x00,0x00},
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| 62 | {0x00,0x36,0x49,0x49,0x49,0x36,0x00,0x00},
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| 63 | {0x00,0x06,0x49,0x49,0x29,0x1E,0x00,0x00},
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| 64 | {0x00,0x00,0x36,0x36,0x00,0x00,0x00,0x00},
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| 65 | {0x00,0x00,0xAC,0x6C,0x00,0x00,0x00,0x00},
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| 66 | {0x00,0x08,0x14,0x22,0x41,0x00,0x00,0x00},
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| 67 | {0x00,0x14,0x14,0x14,0x14,0x14,0x00,0x00},
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| 68 | {0x00,0x41,0x22,0x14,0x08,0x00,0x00,0x00},
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| 69 | {0x00,0x02,0x01,0x51,0x09,0x06,0x00,0x00},
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| 70 | {0x00,0x32,0x49,0x79,0x41,0x3E,0x00,0x00},
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| 71 | {0x00,0x7E,0x09,0x09,0x09,0x7E,0x00,0x00},
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| 72 | {0x00,0x7F,0x49,0x49,0x49,0x36,0x00,0x00},
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| 73 | {0x00,0x3E,0x41,0x41,0x41,0x22,0x00,0x00},
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| 74 | {0x00,0x7F,0x41,0x41,0x22,0x1C,0x00,0x00},
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| 75 | {0x00,0x7F,0x49,0x49,0x49,0x41,0x00,0x00},
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| 76 | {0x00,0x7F,0x09,0x09,0x09,0x01,0x00,0x00},
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| 77 | {0x00,0x3E,0x41,0x41,0x51,0x72,0x00,0x00},
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| 78 | {0x00,0x7F,0x08,0x08,0x08,0x7F,0x00,0x00},
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| 79 | {0x00,0x41,0x7F,0x41,0x00,0x00,0x00,0x00},
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| 80 | {0x00,0x20,0x40,0x41,0x3F,0x01,0x00,0x00},
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| 81 | {0x00,0x7F,0x08,0x14,0x22,0x41,0x00,0x00},
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| 82 | {0x00,0x7F,0x40,0x40,0x40,0x40,0x00,0x00},
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| 83 | {0x00,0x7F,0x02,0x0C,0x02,0x7F,0x00,0x00},
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| 84 | {0x00,0x7F,0x04,0x08,0x10,0x7F,0x00,0x00},
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| 85 | {0x00,0x3E,0x41,0x41,0x41,0x3E,0x00,0x00},
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| 86 | {0x00,0x7F,0x09,0x09,0x09,0x06,0x00,0x00},
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| 87 | {0x00,0x3E,0x41,0x51,0x21,0x5E,0x00,0x00},
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| 88 | {0x00,0x7F,0x09,0x19,0x29,0x46,0x00,0x00},
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| 89 | {0x00,0x26,0x49,0x49,0x49,0x32,0x00,0x00},
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| 90 | {0x00,0x01,0x01,0x7F,0x01,0x01,0x00,0x00},
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| 91 | {0x00,0x3F,0x40,0x40,0x40,0x3F,0x00,0x00},
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| 92 | {0x00,0x1F,0x20,0x40,0x20,0x1F,0x00,0x00},
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| 93 | {0x00,0x3F,0x40,0x38,0x40,0x3F,0x00,0x00},
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| 94 | {0x00,0x63,0x14,0x08,0x14,0x63,0x00,0x00},
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| 95 | {0x00,0x03,0x04,0x78,0x04,0x03,0x00,0x00},
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| 96 | {0x00,0x61,0x51,0x49,0x45,0x43,0x00,0x00},
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| 97 | {0x00,0x7F,0x41,0x41,0x00,0x00,0x00,0x00},
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| 98 | {0x00,0x02,0x04,0x08,0x10,0x20,0x00,0x00},
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| 99 | {0x00,0x41,0x41,0x7F,0x00,0x00,0x00,0x00},
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| 100 | {0x00,0x04,0x02,0x01,0x02,0x04,0x00,0x00},
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| 101 | {0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00},
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| 102 | {0x00,0x01,0x02,0x04,0x00,0x00,0x00,0x00},
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| 103 | {0x00,0x20,0x54,0x54,0x54,0x78,0x00,0x00},
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| 104 | {0x00,0x7F,0x48,0x44,0x44,0x38,0x00,0x00},
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| 105 | {0x00,0x38,0x44,0x44,0x28,0x00,0x00,0x00},
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| 106 | {0x00,0x38,0x44,0x44,0x48,0x7F,0x00,0x00},
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| 107 | {0x00,0x38,0x54,0x54,0x54,0x18,0x00,0x00},
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| 108 | {0x00,0x08,0x7E,0x09,0x02,0x00,0x00,0x00},
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| 109 | {0x00,0x18,0xA4,0xA4,0xA4,0x7C,0x00,0x00},
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| 110 | {0x00,0x7F,0x08,0x04,0x04,0x78,0x00,0x00},
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| 111 | {0x00,0x00,0x7D,0x00,0x00,0x00,0x00,0x00},
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| 112 | {0x00,0x80,0x84,0x7D,0x00,0x00,0x00,0x00},
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| 113 | {0x00,0x7F,0x10,0x28,0x44,0x00,0x00,0x00},
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| 114 | {0x00,0x41,0x7F,0x40,0x00,0x00,0x00,0x00},
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| 115 | {0x00,0x7C,0x04,0x18,0x04,0x78,0x00,0x00},
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| 116 | {0x00,0x7C,0x08,0x04,0x7C,0x00,0x00,0x00},
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| 117 | {0x00,0x38,0x44,0x44,0x38,0x00,0x00,0x00},
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| 118 | {0x00,0xFC,0x24,0x24,0x18,0x00,0x00,0x00},
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| 119 | {0x00,0x18,0x24,0x24,0xFC,0x00,0x00,0x00},
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| 120 | {0x00,0x00,0x7C,0x08,0x04,0x00,0x00,0x00},
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| 121 | {0x00,0x48,0x54,0x54,0x24,0x00,0x00,0x00},
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| 122 | {0x00,0x04,0x7F,0x44,0x00,0x00,0x00,0x00},
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| 123 | {0x00,0x3C,0x40,0x40,0x7C,0x00,0x00,0x00},
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| 124 | {0x00,0x1C,0x20,0x40,0x20,0x1C,0x00,0x00},
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| 125 | {0x00,0x3C,0x40,0x30,0x40,0x3C,0x00,0x00},
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| 126 | {0x00,0x44,0x28,0x10,0x28,0x44,0x00,0x00},
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| 127 | {0x00,0x1C,0xA0,0xA0,0x7C,0x00,0x00,0x00},
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| 128 | {0x00,0x44,0x64,0x54,0x4C,0x44,0x00,0x00},
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| 129 | {0x00,0x08,0x36,0x41,0x00,0x00,0x00,0x00},
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| 130 | {0x00,0x00,0x7F,0x00,0x00,0x00,0x00,0x00},
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| 131 | {0x00,0x41,0x36,0x08,0x00,0x00,0x00,0x00},
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| 132 | {0x00,0x02,0x01,0x01,0x02,0x01,0x00,0x00},
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| 133 | {0x00,0x02,0x05,0x05,0x02,0x00,0x00,0x00}
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| 134 | };
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| 135 |
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| 136 | void SeeedGrayOLED::init(void)
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| 137 | {
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| 138 | sendCommand(0xFD); // Unlock OLED driver IC MCU interface from entering command. i.e: Accept commands
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| 139 | sendCommand(0x12);
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| 140 | sendCommand(0xAE); // Set display off
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| 141 | sendCommand(0xA8); // set multiplex ratio
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| 142 | sendCommand(0x5F); // 96
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| 143 | sendCommand(0xA1); // set display start line
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| 144 | sendCommand(0x00);
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| 145 | sendCommand(0xA2); // set display offset
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| 146 | sendCommand(0x60);
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| 147 | sendCommand(0xA0); // set remap
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| 148 | sendCommand(0x46);
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| 149 | sendCommand(0xAB); // set vdd internal
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| 150 | sendCommand(0x01); //
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| 151 | sendCommand(0x81); // set contrasr
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| 152 | sendCommand(0x53); // 100 nit
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| 153 | sendCommand(0xB1); // Set Phase Length
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| 154 | sendCommand(0X51); //
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| 155 | sendCommand(0xB3); // Set Display Clock Divide Ratio/Oscillator Frequency
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| 156 | sendCommand(0x01);
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| 157 | sendCommand(0xB9); //
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| 158 | sendCommand(0xBC); // set pre_charge voltage/VCOMH
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| 159 | sendCommand(0x08); // (0x08);
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| 160 | sendCommand(0xBE); // set VCOMH
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| 161 | sendCommand(0X07); // (0x07);
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| 162 | sendCommand(0xB6); // Set second pre-charge period
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| 163 | sendCommand(0x01); //
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| 164 | sendCommand(0xD5); // enable second precharge and enternal vsl
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| 165 | sendCommand(0X62); // (0x62);
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| 166 | sendCommand(0xA4); // Set Normal Display Mode
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| 167 | sendCommand(0x2E); // Deactivate Scroll
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| 168 | sendCommand(0xAF); // Switch on display
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| 169 | delay(100);
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| 170 |
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| 171 | // Row Address
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| 172 | sendCommand(0x75); // Set Row Address
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| 173 | sendCommand(0x00); // Start 0
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| 174 | sendCommand(0x5f); // End 95
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| 175 |
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| 176 |
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| 177 | // Column Address
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| 178 | sendCommand(0x15); // Set Column Address
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| 179 | sendCommand(0x08); // Start from 8th Column of driver IC. This is 0th Column for OLED
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| 180 | sendCommand(0x37); // End at (8 + 47)th column. Each Column has 2 pixels(segments)
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| 181 |
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| 182 | // Init gray level for text. Default:Brightest White
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| 183 | grayH= 0xF0;
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| 184 | grayL= 0x0F;
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| 185 | }
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| 186 |
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| 187 | void SeeedGrayOLED::sendCommand(unsigned char command)
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| 188 | {
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| 189 | Wire.beginTransmission(SeeedGrayOLED_Address); // begin I2C communication
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| 190 | Wire.write(SeeedGrayOLED_Command_Mode); // Set OLED Command mode
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| 191 | Wire.write(command);
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| 192 | Wire.endTransmission(); // End I2C communication
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| 193 | }
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| 194 |
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| 195 | void SeeedGrayOLED::setContrastLevel(unsigned char ContrastLevel)
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| 196 | {
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| 197 | sendCommand(SeeedGrayOLED_Set_ContrastLevel_Cmd);
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| 198 | sendCommand(ContrastLevel);
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| 199 | }
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| 200 |
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| 201 | void SeeedGrayOLED::setHorizontalMode()
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| 202 | {
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| 203 | sendCommand(0xA0); // remap to
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| 204 | sendCommand(0x42); // horizontal mode
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| 205 |
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| 206 | // Row Address
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| 207 | sendCommand(0x75); // Set Row Address
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| 208 | sendCommand(0x00); // Start 0
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| 209 | sendCommand(0x5f); // End 95
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| 210 |
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| 211 | // Column Address
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| 212 | sendCommand(0x15); // Set Column Address
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| 213 | sendCommand(0x08); // Start from 8th Column of driver IC. This is 0th Column for OLED
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| 214 | sendCommand(0x37); // End at (8 + 47)th column. Each Column has 2 pixels(or segments)
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| 215 | }
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| 216 |
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| 217 | void SeeedGrayOLED::setVerticalMode()
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| 218 | {
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| 219 | sendCommand(0xA0); // remap to
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| 220 | sendCommand(0x46); // Vertical mode
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| 221 | }
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| 222 |
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| 223 | void SeeedGrayOLED::setTextXY(unsigned char Row, unsigned char Column)
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| 224 | {
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| 225 | //Column Address
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| 226 | sendCommand(0x15); /* Set Column Address */
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| 227 | sendCommand(0x08+(Column*4)); /* Start Column: Start from 8 */
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| 228 | sendCommand(0x37); /* End Column */
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| 229 | // Row Address
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| 230 | sendCommand(0x75); /* Set Row Address */
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| 231 | sendCommand(0x00+(Row*8)); /* Start Row*/
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| 232 | sendCommand(0x07+(Row*8)); /* End Row*/
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| 233 | }
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| 234 |
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| 235 | void SeeedGrayOLED::clearDisplay()
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| 236 | {
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| 237 | unsigned char i,j;
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| 238 | for(j=0;j<48;j++)
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| 239 | {
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| 240 | for(i=0;i<96;i++) //clear all columns
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| 241 | {
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| 242 | sendData(0x00);
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | }
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| 247 |
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| 248 | void SeeedGrayOLED::sendData(unsigned char Data)
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| 249 | {
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| 250 | Wire.beginTransmission(SeeedGrayOLED_Address); // begin I2C transmission
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| 251 | Wire.write(SeeedGrayOLED_Data_Mode); // data mode
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| 252 | Wire.write(Data);
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| 253 | Wire.endTransmission(); // stop I2C transmission
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| 254 | }
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| 255 |
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| 256 | void SeeedGrayOLED::setGrayLevel(unsigned char grayLevel)
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| 257 | {
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| 258 | grayH = (grayLevel << 4) & 0xF0;
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| 259 | grayL = grayLevel & 0x0F;
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| 260 | }
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| 261 |
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| 262 | void SeeedGrayOLED::putChar(unsigned char C)
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| 263 | {
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| 264 | if(C < 32 || C > 127) //Ignore non-printable ASCII characters. This can be modified for multilingual font.
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| 265 | {
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| 266 | C=' '; //Space
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| 267 | }
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| 268 |
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| 269 |
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| 270 | for(char i=0;i<8;i=i+2)
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| 271 | {
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| 272 | for(char j=0;j<8;j++)
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| 273 | {
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| 274 | // Character is constructed two pixel at a time using vertical mode from the default 8x8 font
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| 275 | char c=0x00;
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| 276 | char bit1=(pgm_read_byte(&BasicFont[C-32][i]) >> j) & 0x01;
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| 277 | char bit2=(pgm_read_byte(&BasicFont[C-32][i+1]) >> j) & 0x01;
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| 278 | // Each bit is changed to a nibble
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| 279 | c|=(bit1)?grayH:0x00;
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| 280 | c|=(bit2)?grayL:0x00;
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| 281 | sendData(c);
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| 282 | }
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| 283 | }
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| 284 | }
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| 285 |
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| 286 | void SeeedGrayOLED::putString(const char *String)
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| 287 | {
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| 288 | unsigned char i=0;
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| 289 | while(String[i])
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| 290 | {
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| 291 | putChar(String[i]);
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| 292 | i++;
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| 293 | }
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| 294 | }
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| 295 |
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| 296 | unsigned char SeeedGrayOLED::putNumber(long long_num)
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| 297 | {
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| 298 | unsigned char char_buffer[10]="";
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| 299 | unsigned char i = 0;
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| 300 | unsigned char f = 0;
|
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| 301 |
|
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| 302 | if (long_num < 0)
|
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| 303 | {
|
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| 304 | f=1;
|
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| 305 | putChar('-');
|
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| 306 | long_num = -long_num;
|
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| 307 | }
|
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| 308 | else if (long_num == 0)
|
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| 309 | {
|
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| 310 | f=1;
|
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| 311 | putChar('0');
|
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| 312 | return f;
|
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| 313 | }
|
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| 314 |
|
---|
| 315 | while (long_num > 0)
|
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| 316 | {
|
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| 317 | char_buffer[i++] = long_num % 10;
|
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| 318 | long_num /= 10;
|
---|
| 319 | }
|
---|
| 320 |
|
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| 321 | f=f+i;
|
---|
| 322 | for(; i > 0; i--)
|
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| 323 | {
|
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| 324 | putChar('0'+ char_buffer[i - 1]);
|
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| 325 | }
|
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| 326 | return f;
|
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| 327 |
|
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| 328 | }
|
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| 329 |
|
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| 330 |
|
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| 331 |
|
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| 332 | void SeeedGrayOLED::drawBitmap(unsigned char *bitmaparray,int bytes)
|
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| 333 | {
|
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| 334 | char localAddressMode = addressingMode;
|
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| 335 | if(addressingMode != HORIZONTAL_MODE)
|
---|
| 336 | {
|
---|
| 337 | //Bitmap is drawn in horizontal mode
|
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| 338 | setHorizontalMode();
|
---|
| 339 | }
|
---|
| 340 |
|
---|
| 341 | for(int i=0;i<bytes;i++)
|
---|
| 342 | {
|
---|
| 343 |
|
---|
| 344 | for(int j=0;j<8;j=j+2)
|
---|
| 345 | {
|
---|
| 346 | char c=0x00;
|
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| 347 | char bit1=pgm_read_byte(&bitmaparray[i]) << j & 0x80;
|
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| 348 | char bit2=pgm_read_byte(&bitmaparray[i]) << (j+1) & 0x80;
|
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| 349 |
|
---|
| 350 | // Each bit is changed to a nibble
|
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| 351 | c|=(bit1)?grayH:0x00;
|
---|
| 352 | // Each bit is changed to a nibble
|
---|
| 353 | c|=(bit2)?grayL:0x00;
|
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| 354 | sendData(c);
|
---|
| 355 | }
|
---|
| 356 | }
|
---|
| 357 | if(localAddressMode == VERTICAL_MODE)
|
---|
| 358 | {
|
---|
| 359 | //If Vertical Mode was used earlier, restore it.
|
---|
| 360 | setVerticalMode();
|
---|
| 361 | }
|
---|
| 362 |
|
---|
| 363 | }
|
---|
| 364 |
|
---|
| 365 | void SeeedGrayOLED::setHorizontalScrollProperties(bool direction,unsigned char startRow, unsigned char endRow,unsigned char startColumn, unsigned char endColumn, unsigned char scrollSpeed)
|
---|
| 366 | {
|
---|
| 367 | /*
|
---|
| 368 | Use the following defines for 'direction' :
|
---|
| 369 |
|
---|
| 370 | Scroll_Left
|
---|
| 371 | Scroll_Right
|
---|
| 372 |
|
---|
| 373 | Use the following defines for 'scrollSpeed' :
|
---|
| 374 |
|
---|
| 375 | Scroll_2Frames
|
---|
| 376 | Scroll_3Frames
|
---|
| 377 | Scroll_4Frames
|
---|
| 378 | Scroll_5Frames
|
---|
| 379 | Scroll_25Frames
|
---|
| 380 | Scroll_64Frames
|
---|
| 381 | Scroll_128Frames
|
---|
| 382 | Scroll_256Frames
|
---|
| 383 |
|
---|
| 384 | */
|
---|
| 385 |
|
---|
| 386 | if(Scroll_Right == direction)
|
---|
| 387 | {
|
---|
| 388 | //Scroll Right
|
---|
| 389 | sendCommand(0x27);
|
---|
| 390 | }
|
---|
| 391 | else
|
---|
| 392 | {
|
---|
| 393 | //Scroll Left
|
---|
| 394 | sendCommand(0x26);
|
---|
| 395 | }
|
---|
| 396 | sendCommand(0x00); //Dummmy byte
|
---|
| 397 | sendCommand(startRow);
|
---|
| 398 | sendCommand(scrollSpeed);
|
---|
| 399 | sendCommand(endRow);
|
---|
| 400 | sendCommand(startColumn+8);
|
---|
| 401 | sendCommand(endColumn+8);
|
---|
| 402 | sendCommand(0x00); //Dummmy byte
|
---|
| 403 |
|
---|
| 404 | }
|
---|
| 405 |
|
---|
| 406 | void SeeedGrayOLED::activateScroll()
|
---|
| 407 | {
|
---|
| 408 | sendCommand(SeeedGrayOLED_Activate_Scroll_Cmd);
|
---|
| 409 | }
|
---|
| 410 |
|
---|
| 411 | void SeeedGrayOLED::deactivateScroll()
|
---|
| 412 | {
|
---|
| 413 | sendCommand(SeeedGrayOLED_Dectivate_Scroll_Cmd);
|
---|
| 414 | }
|
---|
| 415 |
|
---|
| 416 | void SeeedGrayOLED::setNormalDisplay()
|
---|
| 417 | {
|
---|
| 418 | sendCommand(SeeedGrayOLED_Normal_Display_Cmd);
|
---|
| 419 | }
|
---|
| 420 |
|
---|
| 421 | void SeeedGrayOLED::setInverseDisplay()
|
---|
| 422 | {
|
---|
| 423 | sendCommand(SeeedGrayOLED_Inverse_Display_Cmd);
|
---|
| 424 | }
|
---|
| 425 |
|
---|
| 426 | SeeedGrayOLED SeeedGrayOled; // Preinstantiate Objects
|
---|
| 427 |
|
---|