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 |
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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;
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319 | }
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320 |
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321 | f=f+i;
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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)
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336 | {
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337 | //Bitmap is drawn in horizontal mode
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338 | setHorizontalMode();
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339 | }
|
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340 |
|
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341 | for(int i=0;i<bytes;i++)
|
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342 | {
|
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343 |
|
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344 | for(int j=0;j<8;j=j+2)
|
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345 | {
|
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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 |
|
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350 | // Each bit is changed to a nibble
|
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351 | c|=(bit1)?grayH:0x00;
|
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352 | // Each bit is changed to a nibble
|
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353 | c|=(bit2)?grayL:0x00;
|
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354 | sendData(c);
|
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355 | }
|
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356 | }
|
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357 | if(localAddressMode == VERTICAL_MODE)
|
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358 | {
|
---|
359 | //If Vertical Mode was used earlier, restore it.
|
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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)
|
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366 | {
|
---|
367 | /*
|
---|
368 | Use the following defines for 'direction' :
|
---|
369 |
|
---|
370 | Scroll_Left
|
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371 | Scroll_Right
|
---|
372 |
|
---|
373 | Use the following defines for 'scrollSpeed' :
|
---|
374 |
|
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375 | Scroll_2Frames
|
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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 |
|
---|