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ssd1306.c
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ssd1306.c
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/*
* SSD1306 controller frame-buffer-less driver with 6x8 and 8x16 pixel fonts
*
* Created: 9-9-2018 14:13:39
* Author: Tim Dorssers
*/
#include "ssd1306.h"
/* Standard ASCII 6x8 font */
const uint8_t font6x8[] PROGMEM = {
0x00, 0x00, 0x00, 0x00, 0x00, // 0
0x00, 0x00, 0x2f, 0x00, 0x00, // ! 1
0x00, 0x07, 0x00, 0x07, 0x00, // " 2
0x14, 0x7f, 0x14, 0x7f, 0x14, // # 3
0x24, 0x2a, 0x7f, 0x2a, 0x12, // $ 4
0x62, 0x64, 0x08, 0x13, 0x23, // % 5
0x36, 0x49, 0x55, 0x22, 0x50, // & 6
0x00, 0x05, 0x03, 0x00, 0x00, // ' 7
0x00, 0x1c, 0x22, 0x41, 0x00, // ( 8
0x00, 0x41, 0x22, 0x1c, 0x00, // ) 9
0x14, 0x08, 0x3E, 0x08, 0x14, // * 10
0x08, 0x08, 0x3E, 0x08, 0x08, // + 11
0x00, 0x00, 0xA0, 0x60, 0x00, // , 12
0x08, 0x08, 0x08, 0x08, 0x08, // - 13
0x00, 0x60, 0x60, 0x00, 0x00, // . 14
0x20, 0x10, 0x08, 0x04, 0x02, // / 15
0x3E, 0x51, 0x49, 0x45, 0x3E, // 0 16
0x00, 0x42, 0x7F, 0x40, 0x00, // 1 17
0x42, 0x61, 0x51, 0x49, 0x46, // 2 18
0x21, 0x41, 0x45, 0x4B, 0x31, // 3 19
0x18, 0x14, 0x12, 0x7F, 0x10, // 4 20
0x27, 0x45, 0x45, 0x45, 0x39, // 5 21
0x3C, 0x4A, 0x49, 0x49, 0x30, // 6 22
0x01, 0x71, 0x09, 0x05, 0x03, // 7 23
0x36, 0x49, 0x49, 0x49, 0x36, // 8 24
0x06, 0x49, 0x49, 0x29, 0x1E, // 9 25
0x00, 0x36, 0x36, 0x00, 0x00, // : 26
0x00, 0x56, 0x36, 0x00, 0x00, // ; 27
0x08, 0x14, 0x22, 0x41, 0x00, // < 28
0x14, 0x14, 0x14, 0x14, 0x14, // = 29
0x00, 0x41, 0x22, 0x14, 0x08, // > 30
0x02, 0x01, 0x51, 0x09, 0x06, // ? 31
0x32, 0x49, 0x59, 0x51, 0x3E, // @ 32
0x7C, 0x12, 0x11, 0x12, 0x7C, // A 33
0x7F, 0x49, 0x49, 0x49, 0x36, // B 34
0x3E, 0x41, 0x41, 0x41, 0x22, // C 35
0x7F, 0x41, 0x41, 0x22, 0x1C, // D 36
0x7F, 0x49, 0x49, 0x49, 0x41, // E 37
0x7F, 0x09, 0x09, 0x09, 0x01, // F 38
0x3E, 0x41, 0x49, 0x49, 0x7A, // G 39
0x7F, 0x08, 0x08, 0x08, 0x7F, // H 40
0x00, 0x41, 0x7F, 0x41, 0x00, // I 41
0x20, 0x40, 0x41, 0x3F, 0x01, // J 42
0x7F, 0x08, 0x14, 0x22, 0x41, // K 43
0x7F, 0x40, 0x40, 0x40, 0x40, // L 44
0x7F, 0x02, 0x0C, 0x02, 0x7F, // M 45
0x7F, 0x04, 0x08, 0x10, 0x7F, // N 46
0x3E, 0x41, 0x41, 0x41, 0x3E, // O 47
0x7F, 0x09, 0x09, 0x09, 0x06, // P 48
0x3E, 0x41, 0x51, 0x21, 0x5E, // Q 49
0x7F, 0x09, 0x19, 0x29, 0x46, // R 50
0x46, 0x49, 0x49, 0x49, 0x31, // S 51
0x01, 0x01, 0x7F, 0x01, 0x01, // T 52
0x3F, 0x40, 0x40, 0x40, 0x3F, // U 53
0x1F, 0x20, 0x40, 0x20, 0x1F, // V 54
0x3F, 0x40, 0x38, 0x40, 0x3F, // W 55
0x63, 0x14, 0x08, 0x14, 0x63, // X 56
0x07, 0x08, 0x70, 0x08, 0x07, // Y 57
0x61, 0x51, 0x49, 0x45, 0x43, // Z 58
0x00, 0x7F, 0x41, 0x41, 0x00, // [ 59
0x02, 0x04, 0x08, 0x10, 0x20, // \ 60
0x00, 0x41, 0x41, 0x7F, 0x00, // ] 61
0x04, 0x02, 0x01, 0x02, 0x04, // ^ 62
0x40, 0x40, 0x40, 0x40, 0x40, // _ 63
0x00, 0x01, 0x02, 0x04, 0x00, // ' 64
0x20, 0x54, 0x54, 0x54, 0x78, // a 65
0x7F, 0x48, 0x44, 0x44, 0x38, // b 66
0x38, 0x44, 0x44, 0x44, 0x20, // c 67
0x38, 0x44, 0x44, 0x48, 0x7F, // d 68
0x38, 0x54, 0x54, 0x54, 0x18, // e 69
0x08, 0x7E, 0x09, 0x01, 0x02, // f 70
0x18, 0xA4, 0xA4, 0xA4, 0x7C, // g 71
0x7F, 0x08, 0x04, 0x04, 0x78, // h 72
0x00, 0x44, 0x7D, 0x40, 0x00, // i 73
0x40, 0x80, 0x84, 0x7D, 0x00, // j 74
0x7F, 0x10, 0x28, 0x44, 0x00, // k 75
0x00, 0x41, 0x7F, 0x40, 0x00, // l 76
0x7C, 0x04, 0x18, 0x04, 0x78, // m 77
0x7C, 0x08, 0x04, 0x04, 0x78, // n 78
0x38, 0x44, 0x44, 0x44, 0x38, // o 79
0xFC, 0x24, 0x24, 0x24, 0x18, // p 80
0x18, 0x24, 0x24, 0x18, 0xFC, // q 81
0x7C, 0x08, 0x04, 0x04, 0x08, // r 82
0x48, 0x54, 0x54, 0x54, 0x20, // s 83
0x04, 0x3F, 0x44, 0x40, 0x20, // t 84
0x3C, 0x40, 0x40, 0x20, 0x7C, // u 85
0x1C, 0x20, 0x40, 0x20, 0x1C, // v 86
0x3C, 0x40, 0x30, 0x40, 0x3C, // w 87
0x44, 0x28, 0x10, 0x28, 0x44, // x 88
0x1C, 0xA0, 0xA0, 0xA0, 0x7C, // y 89
0x44, 0x64, 0x54, 0x4C, 0x44, // z 90
0x08, 0x36, 0x41, 0x41, 0x00, // { 91
0x00, 0x00, 0x7F, 0x00, 0x00, // | 92
0x00, 0x41, 0x41, 0x36, 0x08, // } 93
0x08, 0x04, 0x08, 0x10, 0x08, // ~ 94
};
/* Standard ASCII 8x16 font */
const uint8_t font8x16[] PROGMEM = {
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // 0
0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00, // ! 1
0x00,0x10,0x0C,0x06,0x10,0x0C,0x06,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // " 2
0x40,0xC0,0x78,0x40,0xC0,0x78,0x40,0x00,0x04,0x3F,0x04,0x04,0x3F,0x04,0x04,0x00, // # 3
0x00,0x70,0x88,0xFC,0x08,0x30,0x00,0x00,0x00,0x18,0x20,0xFF,0x21,0x1E,0x00,0x00, // $ 4
0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00, // % 5
0x00,0xF0,0x08,0x88,0x70,0x00,0x00,0x00,0x1E,0x21,0x23,0x24,0x19,0x27,0x21,0x10, // & 6
0x10,0x16,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // ' 7
0x00,0x00,0x00,0xE0,0x18,0x04,0x02,0x00,0x00,0x00,0x00,0x07,0x18,0x20,0x40,0x00, // ( 8
0x00,0x02,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x40,0x20,0x18,0x07,0x00,0x00,0x00, // ) 9
0x40,0x40,0x80,0xF0,0x80,0x40,0x40,0x00,0x02,0x02,0x01,0x0F,0x01,0x02,0x02,0x00, // * 10
0x00,0x00,0x00,0xF0,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x1F,0x01,0x01,0x01,0x00, // + 11
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00, // , 12
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01, // - 13
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00, // . 14
0x00,0x00,0x00,0x00,0x80,0x60,0x18,0x04,0x00,0x60,0x18,0x06,0x01,0x00,0x00,0x00, // / 15
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00, // 0 16
0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00, // 1 17
0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00, // 2 18
0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00, // 3 19
0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00, // 4 20
0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00, // 5 21
0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00, // 6 22
0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00, // 7 23
0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00, // 8 24
0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00, // 9 25
0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00, // : 26
0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x60,0x00,0x00,0x00,0x00, // ; 27
0x00,0x00,0x80,0x40,0x20,0x10,0x08,0x00,0x00,0x01,0x02,0x04,0x08,0x10,0x20,0x00, // < 28
0x40,0x40,0x40,0x40,0x40,0x40,0x40,0x00,0x04,0x04,0x04,0x04,0x04,0x04,0x04,0x00, // = 29
0x00,0x08,0x10,0x20,0x40,0x80,0x00,0x00,0x00,0x20,0x10,0x08,0x04,0x02,0x01,0x00, // > 30
0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00, // ? 31
0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00, // @ 32
0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20, // A 33
0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00, // B 34
0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00, // C 35
0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00, // D 36
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00, // E 37
0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00, // F 38
0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00, // G 39
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20, // H 40
0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00, // I 41
0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00, // J 42
0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00, // K 43
0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x20,0x30,0x00, // L 44
0x08,0xF8,0xF8,0x00,0xF8,0xF8,0x08,0x00,0x20,0x3F,0x00,0x3F,0x00,0x3F,0x20,0x00, // M 45
0x08,0xF8,0x30,0xC0,0x00,0x08,0xF8,0x08,0x20,0x3F,0x20,0x00,0x07,0x18,0x3F,0x00, // N 46
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x10,0x20,0x20,0x20,0x10,0x0F,0x00, // O 47
0x08,0xF8,0x08,0x08,0x08,0x08,0xF0,0x00,0x20,0x3F,0x21,0x01,0x01,0x01,0x00,0x00, // P 48
0xE0,0x10,0x08,0x08,0x08,0x10,0xE0,0x00,0x0F,0x18,0x24,0x24,0x38,0x50,0x4F,0x00, // Q 49
0x08,0xF8,0x88,0x88,0x88,0x88,0x70,0x00,0x20,0x3F,0x20,0x00,0x03,0x0C,0x30,0x20, // R 50
0x00,0x70,0x88,0x08,0x08,0x08,0x38,0x00,0x00,0x38,0x20,0x21,0x21,0x22,0x1C,0x00, // S 51
0x18,0x08,0x08,0xF8,0x08,0x08,0x18,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00, // T 52
0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00, // U 53
0x08,0x78,0x88,0x00,0x00,0xC8,0x38,0x08,0x00,0x00,0x07,0x38,0x0E,0x01,0x00,0x00, // V 54
0xF8,0x08,0x00,0xF8,0x00,0x08,0xF8,0x00,0x03,0x3C,0x07,0x00,0x07,0x3C,0x03,0x00, // W 55
0x08,0x18,0x68,0x80,0x80,0x68,0x18,0x08,0x20,0x30,0x2C,0x03,0x03,0x2C,0x30,0x20, // X 56
0x08,0x38,0xC8,0x00,0xC8,0x38,0x08,0x00,0x00,0x00,0x20,0x3F,0x20,0x00,0x00,0x00, // Y 57
0x10,0x08,0x08,0x08,0xC8,0x38,0x08,0x00,0x20,0x38,0x26,0x21,0x20,0x20,0x18,0x00, // Z 58
0x00,0x00,0x00,0xFE,0x02,0x02,0x02,0x00,0x00,0x00,0x00,0x7F,0x40,0x40,0x40,0x00, // [ 59
0x00,0x0C,0x30,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x06,0x38,0xC0,0x00, // \ 60
0x00,0x02,0x02,0x02,0xFE,0x00,0x00,0x00,0x00,0x40,0x40,0x40,0x7F,0x00,0x00,0x00, // ] 61
0x00,0x00,0x04,0x02,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // ^ 62
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x80, // _ 63
0x00,0x02,0x02,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // ` 64
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20, // a 65
0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00, // b 66
0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00, // c 67
0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20, // d 68
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00, // e 69
0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00, // f 70
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00, // g 71
0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20, // h 72
0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00, // i 73
0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00, // j 74
0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00, // k 75
0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00, // l 76
0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F, // m 77
0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20, // n 78
0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00, // o 79
0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00, // p 80
0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80, // q 81
0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00, // r 82
0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00, // s 83
0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00, // t 84
0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20, // u 85
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00, // v 86
0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00, // w 87
0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00, // x 88
0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00, // y 89
0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00, // z 90
0x00,0x00,0x00,0x00,0x80,0x7C,0x02,0x02,0x00,0x00,0x00,0x00,0x00,0x3F,0x40,0x40, // { 91
0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0x00,0x00,0x00, // | 92
0x00,0x02,0x02,0x7C,0x80,0x00,0x00,0x00,0x00,0x40,0x40,0x3F,0x00,0x00,0x00,0x00, // } 93
0x00,0x06,0x01,0x01,0x02,0x02,0x04,0x04,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // ~ 94
};
const uint8_t ssd1306_init_sequence[] PROGMEM = { // Initialization Sequence
// 0xAE, // Display OFF (sleep mode)
// 0x20, 0b10, // Set Memory Addressing Mode
// 00=Horizontal Addressing Mode; 01=Vertical Addressing Mode;
// 10=Page Addressing Mode (RESET); 11=Invalid
// 0xB0, // Set Page Start Address for Page Addressing Mode, 0-7
0xC8, // Set COM Output Scan Direction
// 0x00, // ---set low column address
// 0x10, // ---set high column address
// 0x40, // --set start line address
// 0x81, 0x7F, // Set contrast control register
0xA1, // Set Segment Re-map. A0=address mapped; A1=address 127 mapped.
// 0xA6, // Set display mode. A6=Normal; A7=Inverse
0xA8, 0x1F, // Set multiplex ratio(1 to 64)
// 0xA4, // Output RAM to Display
// 0xA4=Output follows RAM content; 0xA5,Output ignores RAM content
// 0xD3, 0x00, // Set display offset. 00 = no offset
// 0xD5, 0x80, // --set display clock divide ratio/oscillator frequency
// 0xD9, 0x22, // Set pre-charge period
0xDA, 0x02, // Set com pins hardware configuration
// 0xDB, 0x20, // --set vcomh 0x20 = 0.77xVcc
0x8D, 0x14 // Set DC-DC enable
};
uint8_t oledX = 0, oledY = 0;
uint8_t renderingFrame = 0xB0, drawingFrame = 0x40;
void ssd1306_send_command_start(void) {
i2c_start(SSD1306_ADDR + I2C_WRITE);
i2c_write(SSD1306_COMMAND);
}
void ssd1306_init(void) {
ssd1306_send_command_start();
for (uint8_t i = 0; i < sizeof(ssd1306_init_sequence); i++) {
i2c_write(pgm_read_byte(&ssd1306_init_sequence[i]));
}
i2c_stop();
//ssd1306_set_com_output_direction(1);
//ssd1306_set_segment_remap(1);
//ssd1306_set_multiplex_ratio(32);
//ssd1306_set_com_pins_hardware_configuration(0, 0);
//ssd1306_enable_charge_pump();
}
void ssd1306_send_command(uint8_t command) {
ssd1306_send_command_start();
i2c_write(command);
i2c_stop();
}
void ssd1306_send_data_start(void) {
i2c_start(SSD1306_ADDR + I2C_WRITE);
i2c_write(SSD1306_DATA);
}
void ssd1306_set_cursor(uint8_t x, uint8_t y) {
ssd1306_send_command_start();
i2c_write(renderingFrame | (y & 0x07));
i2c_write(0x10 | ((x & 0xf0) >> 4));
i2c_write(x & 0x0f);
i2c_stop();
oledX = x;
oledY = y;
}
void ssd1306_fill_length(uint8_t fill, uint8_t length) {
oledX += length;
ssd1306_send_data_start();
do {
i2c_write(fill);
} while (--length);
i2c_stop();
}
void ssd1306_fill_to_eol(uint8_t fill) {
ssd1306_fill_length(fill, 128 - oledX);
}
void ssd1306_fill(uint8_t fill) {
for (uint8_t i = 0; i < SSD1306_PAGES; i++) {
ssd1306_set_cursor(0, i);
ssd1306_fill_to_eol(fill);
}
ssd1306_set_cursor(0, 0);
}
void ssd1306_clear(void) {
for (uint8_t y = 0; y < SSD1306_PAGES; y++) {
ssd1306_set_cursor(0, y);
ssd1306_send_data_start();
for (uint8_t i = 128; --i > 0; ) {
i2c_write(0x00);
}
i2c_stop();
}
ssd1306_set_cursor(0, 0);
}
// height in pages (8 pixels)
void ssd1306_new_line(uint8_t fontHeight) {
oledY+=fontHeight;
if (oledY > SSD1306_PAGES - fontHeight) {
oledY = SSD1306_PAGES - fontHeight;
}
ssd1306_set_cursor(0, oledY);
}
void ssd1306_bitmap(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t bitmap[]) {
uint16_t j = 0;
for (uint8_t y = y0; y < y1; y++) {
ssd1306_set_cursor(x0,y);
ssd1306_send_data_start();
for (uint8_t x = x0; x < x1; x++) {
i2c_write(bitmap[j++]);
}
i2c_stop();
}
ssd1306_set_cursor(0, 0);
}
void ssd1306_bitmap_p(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, const uint8_t bitmap[]) {
uint16_t j = 0;
for (uint8_t y = y0; y < y1; y++) {
ssd1306_set_cursor(x0,y);
ssd1306_send_data_start();
for (uint8_t x = x0; x < x1; x++) {
i2c_write(pgm_read_byte(&bitmap[j++]));
}
i2c_stop();
}
ssd1306_set_cursor(0, 0);
}
void ssd1306_char_font6x8(uint8_t c) {
if (c == '\r')
return;
if (c == '\n') {
ssd1306_new_line(1);
return;
}
if (oledX > 122) {
ssd1306_new_line(1);
}
ssd1306_send_data_start();
uint16_t offset = ((uint16_t)c - 32) * 5;
i2c_write(0x00);
for (uint8_t i = 0; i < 5; i++) {
i2c_write(pgm_read_byte(&font6x8[offset++]));
}
i2c_stop();
oledX+=6;
}
void ssd1306_string_font6x8(uint8_t *s) {
while (*s) {
ssd1306_char_font6x8(*s++);
}
}
void ssd1306_string_font6x8_p(const uint8_t *s) {
uint8_t c;
while ((c = pgm_read_byte(s++))) {
ssd1306_char_font6x8(c);
}
}
void ssd1306_char_font8x16(uint8_t c) {
if (c == '\r')
return;
if (c == '\n') {
ssd1306_new_line(2);
return;
}
if (oledX > 120) {
ssd1306_new_line(2);
}
uint16_t offset = ((uint16_t)c - 32) * 16;
uint8_t line = 2;
do
{
ssd1306_send_data_start();
for (uint8_t i = 0; i < 8; i++) {
i2c_write(pgm_read_byte(&font8x16[offset++]));
}
i2c_stop();
if (line > 1) {
ssd1306_set_cursor(oledX, oledY + 1);
}
else {
ssd1306_set_cursor(oledX + 8, oledY - 1);
}
}
while (--line);
}
void ssd1306_string_font8x16(uint8_t *s) {
while (*s) {
ssd1306_char_font8x16(*s++);
}
}
void ssd1306_string_font8x16_p(const uint8_t *s) {
uint8_t c;
while ((c = pgm_read_byte(s++))) {
ssd1306_char_font8x16(c);
}
}
void ssd1306_put_pixel(uint8_t x, uint8_t y) {
ssd1306_set_cursor(x, y / 8);
ssd1306_send_data_start();
i2c_write(1 << y % 8);
i2c_stop();
}
void ssd1306_put_pixels(uint8_t x, uint8_t y, uint8_t pixels) {
ssd1306_set_cursor(x, y / 8);
ssd1306_send_data_start();
i2c_write(pixels);
i2c_stop();
}
void ssd1306_draw_hline(uint8_t y) {
for (uint8_t i = 0; i < 128; i++) {
ssd1306_put_pixel(i, y);
}
}
void ssd1306_draw_vline(uint8_t x) {
for (uint8_t i = 0; i < SSD1306_PAGES; i++) {
ssd1306_set_cursor(x, i);
ssd1306_send_data_start();
i2c_write(0xFF);
i2c_stop();
}
}
// 1. Fundamental Command Table
void ssd1306_set_contrast(uint8_t contrast) {
ssd1306_send_command_start();
i2c_write(0x81);
i2c_write(contrast);
i2c_stop();
}
// Double Buffering Commands
void ssd1306_switch_render_frame(void) {
renderingFrame ^= 0x04;
}
void ssd1306_switch_display_frame(void) {
drawingFrame ^= 0x20;
ssd1306_send_command(drawingFrame);
}
void ssd1306_switchFrame(void) {
//ssd1306_switch_display_frame();
//ssd1306_switch_render_frame();
drawingFrame ^= 0x20;
ssd1306_send_command(drawingFrame);
renderingFrame ^= 0x04;
}
uint8_t ssd1306_current_render_frame(void) {
return (renderingFrame >> 2) & 0x01;
}
uint8_t ssd1306_current_display_frame(void) {
return (drawingFrame >> 5) & 0x01;
}
// 2. Scrolling Command Table
void ssd1306_scroll_right(uint8_t startPage, uint8_t interval, uint8_t endPage) {
ssd1306_send_command_start();
i2c_write(0x26);
i2c_write(0x00);
i2c_write(startPage);
i2c_write(interval);
i2c_write(endPage);
i2c_write(0x00);
i2c_write(0xFF);
i2c_stop();
}
void ssd1306_scroll_left(uint8_t startPage, uint8_t interval, uint8_t endPage) {
ssd1306_send_command_start();
i2c_write(0x27);
i2c_write(0x00);
i2c_write(startPage);
i2c_write(interval);
i2c_write(endPage);
i2c_write(0x00);
i2c_write(0xFF);
i2c_stop();
}
void ssd1306_scroll_right_vertical_offset(uint8_t startPage, uint8_t interval, uint8_t endPage, uint8_t offset) {
ssd1306_send_command_start();
i2c_write(0x29);
i2c_write(0x00);
i2c_write(startPage);
i2c_write(interval);
i2c_write(endPage);
i2c_write(offset);
i2c_stop();
}
void ssd1306_scroll_left_vertical_offset(uint8_t startPage, uint8_t interval, uint8_t endPage, uint8_t offset) {
ssd1306_send_command_start();
i2c_write(0x2A);
i2c_write(0x00);
i2c_write(startPage);
i2c_write(interval);
i2c_write(endPage);
i2c_write(offset);
i2c_stop();
}
void ssd1306_set_vertical_scroll_area(uint8_t top, uint8_t rows) {
ssd1306_send_command_start();
i2c_write(0xA3);
i2c_write(top);
i2c_write(rows);
i2c_stop();
}
// 3. Addressing Setting Command Table
void ssd1306_set_column_start_address(uint8_t startAddress) {
ssd1306_send_command_start();
i2c_write(startAddress & 0x0F);
i2c_write(startAddress >> 4);
i2c_stop();
}
void ssd1306_set_memory_addressing_mode(uint8_t mode) {
ssd1306_send_command_start();
i2c_write(0x20);
i2c_write(mode & 0x03);
i2c_stop();
}
void ssd1306_set_column_address(uint8_t startAddress, uint8_t endAddress) {
ssd1306_send_command_start();
i2c_write(0x21);
i2c_write(startAddress & 0x7F);
i2c_write(endAddress & 0x7F);
i2c_stop();
}
void ssd1306_set_page_address(uint8_t startPage, uint8_t endPage) {
ssd1306_send_command_start();
i2c_write(0x22);
i2c_write(startPage & 0x07);
i2c_write(endPage & 0x07);
i2c_stop();
}
void ssd1306_set_page_start_address(uint8_t startPage) {
ssd1306_send_command(0xB0 | (startPage & 0x07));
}
// 4. Hardware Configuration (Panel resolution and layout related) Command Table
void ssd1306_set_display_start_line(uint8_t startLine) {
ssd1306_send_command(0x40 | (startLine & 0x3F));
}
void ssd1306_set_segment_remap(uint8_t remap) {
ssd1306_send_command(0xA0 | (remap & 0x01));
}
void ssd1306_set_multiplex_ratio(uint8_t mux) {
ssd1306_send_command_start();
i2c_write(0xA8);
i2c_write((mux - 1) & 0x3F);
i2c_stop();
}
void ssd1306_set_com_output_direction(uint8_t direction) {
ssd1306_send_command(0xC0 | ((direction & 0x01)<<3));
}
void ssd1306_set_display_offset(uint8_t offset) {
ssd1306_send_command_start();
i2c_write(0xD3);
i2c_write(offset & 0x3F);
i2c_stop();
}
void ssd1306_set_com_pins_hardware_configuration(uint8_t alternative, uint8_t enableLeftRightRemap) {
ssd1306_send_command_start();
i2c_write(0xDA);
i2c_write(((enableLeftRightRemap & 0x01) << 5) | ((alternative & 0x01) << 4) | 0x02);
i2c_stop();
}
// 5. Timing and Driving Scheme Setting Command table
void ssd1306_set_display_clock(uint8_t divideRatio, uint8_t oscillatorFrequency) {
ssd1306_send_command_start();
i2c_write(0xD5);
i2c_write(((oscillatorFrequency & 0x0F) << 4) | ((divideRatio -1) & 0x0F));
i2c_stop();
}
void ssd1306_set_precharge_period(uint8_t phaseOnePeriod, uint8_t phaseTwoPeriod) {
ssd1306_send_command_start();
i2c_write(0xD9);
i2c_write(((phaseTwoPeriod & 0x0F) << 4) | (phaseOnePeriod & 0x0F));
i2c_stop();
}
void ssd1306_set_vcomh_deselect_level(uint8_t level) {
ssd1306_send_command_start();
i2c_write(0xDB);
i2c_write((level & 0x07) << 4);
i2c_stop();
}
// 6. Advance Graphic Command table
void ssd1306_fade_out(uint8_t interval) {
ssd1306_send_command_start();
i2c_write(0x23);
i2c_write((0x20 | (interval & 0x0F)));
i2c_stop();
}
void ssd1306_blink(uint8_t interval) {
ssd1306_send_command_start();
i2c_write(0x23);
i2c_write((0x30 | (interval & 0x0F)));
i2c_stop();
}
void ssd1306_disable_fade_out_and_blinking(void) {
ssd1306_send_command_start();
i2c_write(0x23);
i2c_write(0x00);
i2c_stop();
}
void ssd1306_enable_zoom_in(void) {
ssd1306_send_command_start();
i2c_write(0xD6);
i2c_write(0x01);
i2c_stop();
}
void ssd1306_disable_zoom_in(void) {
ssd1306_send_command_start();
i2c_write(0xD6);
i2c_write(0x00);
i2c_stop();
}
// Charge Pump Settings
void ssd1306_enable_charge_pump(void) {
ssd1306_send_command_start();
i2c_write(0x8D);
i2c_write(0x14);
i2c_stop();
}
void ssd1306_disable_charge_pump(void) {
ssd1306_send_command_start();
i2c_write(0x8D);
i2c_write(0x10);
i2c_stop();
}