-
Notifications
You must be signed in to change notification settings - Fork 58
/
SSD1306.h
115 lines (101 loc) · 4.94 KB
/
SSD1306.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
/*!
* @file Adafruit_SSD1306.h
*
* This is part of for Adafruit's SSD1306 library for monochrome
* OLED displays: http://www.adafruit.com/category/63_98
*
* These displays use I2C or SPI to communicate. I2C requires 2 pins
* (SCL+SDA) and optionally a RESET pin. SPI requires 4 pins (MOSI, SCK,
* select, data/command) and optionally a reset pin. Hardware SPI or
* 'bitbang' software SPI are both supported.
*
* Adafruit invests time and resources providing this open source code,
* please support Adafruit and open-source hardware by purchasing
* products from Adafruit!
*
* Written by Limor Fried/Ladyada for Adafruit Industries, with
* contributions from the open source community.
*
* BSD license, all text above, and the splash screen header file,
* must be included in any redistribution.
*
*/
#ifndef _Adafruit_SSD1306_H_
#define _Adafruit_SSD1306_H_
#include "TWI_Master.h"
#include "string.h"
#include "constants.h"
/// The following "raw" color names are kept for backwards client compatability
/// They can be disabled by predefining this macro before including the Adafruit header
/// client code will then need to be modified to use the scoped enum values directly
#ifndef NO_ADAFRUIT_SSD1306_COLOR_COMPATIBILITY
#define BLACK SSD1306_BLACK ///< Draw 'off' pixels
#define WHITE SSD1306_WHITE ///< Draw 'on' pixels
#define INVERSE SSD1306_INVERSE ///< Invert pixels
#endif
/// fit into the SSD1306_ naming scheme
#define SSD1306_BLACK 0 ///< Draw 'off' pixels
#define SSD1306_WHITE 1 ///< Draw 'on' pixels
#define SSD1306_INVERSE 2 ///< Invert pixels
#define SSD1306_MEMORYMODE 0x20 ///< See datasheet
#define SSD1306_COLUMNADDR 0x21 ///< See datasheet
#define SSD1306_PAGEADDR 0x22 ///< See datasheet
#define SSD1306_SETCONTRAST 0x81 ///< See datasheet
#define SSD1306_CHARGEPUMP 0x8D ///< See datasheet
#define SSD1306_SEGREMAP 0xA0 ///< See datasheet
#define SSD1306_DISPLAYALLON_RESUME 0xA4 ///< See datasheet
#define SSD1306_DISPLAYALLON 0xA5 ///< Not currently used
#define SSD1306_NORMALDISPLAY 0xA6 ///< See datasheet
#define SSD1306_INVERTDISPLAY 0xA7 ///< See datasheet
#define SSD1306_SETMULTIPLEX 0xA8 ///< See datasheet
#define SSD1306_DISPLAYOFF 0xAE ///< See datasheet
#define SSD1306_DISPLAYON 0xAF ///< See datasheet
#define SSD1306_COMSCANINC 0xC0 ///< Not currently used
#define SSD1306_COMSCANDEC 0xC8 ///< See datasheet
#define SSD1306_SETDISPLAYOFFSET 0xD3 ///< See datasheet
#define SSD1306_SETDISPLAYCLOCKDIV 0xD5 ///< See datasheet
#define SSD1306_SETPRECHARGE 0xD9 ///< See datasheet
#define SSD1306_SETCOMPINS 0xDA ///< See datasheet
#define SSD1306_SETVCOMDETECT 0xDB ///< See datasheet
#define SSD1306_SETLOWCOLUMN 0x00 ///< Not currently used
#define SSD1306_SETHIGHCOLUMN 0x10 ///< Not currently used
#define SSD1306_SETSTARTLINE 0x40 ///< See datasheet
#define SSD1306_EXTERNALVCC 0x01 ///< External display voltage source
#define SSD1306_SWITCHCAPVCC 0x02 ///< Gen. display voltage from 3.3V
#define SSD1306_RIGHT_HORIZONTAL_SCROLL 0x26 ///< Init rt scroll
#define SSD1306_LEFT_HORIZONTAL_SCROLL 0x27 ///< Init left scroll
#define SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL 0x29 ///< Init diag scroll
#define SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL 0x2A ///< Init diag scroll
#define SSD1306_DEACTIVATE_SCROLL 0x2E ///< Stop scroll
#define SSD1306_ACTIVATE_SCROLL 0x2F ///< Start scroll
#define SSD1306_SET_VERTICAL_SCROLL_AREA 0xA3 ///< Set scroll range
/*!
@brief Class that stores state and functions for interacting with
SSD1306 OLED displays.
*/
template <uint8_t WIDTH, uint8_t HEIGHT>
class Adafruit_SSD1306 {
public:
Adafruit_SSD1306() = default;
~Adafruit_SSD1306(void) = default;
bool begin(uint8_t switchvcc=SSD1306_SWITCHCAPVCC,
uint8_t i2caddr=0);
void display(void);
void clearDisplay(void);
void invertDisplay(bool i);
void drawPixel(int16_t x, int16_t y, uint16_t color);
void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
bool getPixel(int16_t x, int16_t y);
uint8_t *getBuffer(void);
void clearRect(uint8_t, uint8_t, uint8_t, uint8_t);
void drawBitmap(int16_t x, int16_t y, const uint8_t bitmap[], int16_t w, int16_t h, uint16_t color);
private:
void drawFastVLineInternal(int16_t x, int16_t y, int16_t h,
uint16_t color);
void ssd1306_command1(uint8_t c);
void ssd1306_commandList(const uint8_t *c, uint8_t n);
uint8_t buffer[WIDTH * ((HEIGHT + 7) / 8)];
int8_t i2caddr, vccstate, page_end;
};
template class Adafruit_SSD1306<SCREEN_WIDTH, SCREEN_HEIGHT>;
#endif // _Adafruit_SSD1306_H_