Craig Evans / N5110

Library for interfacing to Nokia 5110 LCD display (as found on the SparkFun website).

Dependents:   LV7_LCDtest LV7_Grupa5_Tim003_Zadatak1 lv7_Grupa5_Tim008_zad1 LV7_PAI_Grupa5_tim10_Zadatak1 ... more

This library is designed to make it easy to interface an mbed with a Nokia 5110 LCD display.

These can be found at Sparkfun (https://www.sparkfun.com/products/10168) and Adafruit (http://www.adafruit.com/product/338).

The library uses the SPI peripheral on the mbed which means it is much faster sending data to the display than other libraries available on other platforms that use software SPI.

The library can print strings as well as controlling individual pixels, meaning that both text and primitive graphics can be displayed.

N5110.h@49:93355c01e261, 2018-03-19 (annotated)

Committer:
eencae
Date:
Mon Mar 19 13:44:23 2018 +0000
Revision:
49:93355c01e261
Parent:
48:af12980ac515
Child:
50:e73cd097fdcb
Changed default contrast (0.55). This seems to work better with the majority of screens.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
eencae 25:444e55e2e419 1 #ifndef N5110_H
eencae 25:444e55e2e419 2 #define N5110_H
eencae 25:444e55e2e419 3
eencae 25:444e55e2e419 4 #include "mbed.h"
eencae 1:df68f34cd32d 5
eencae 48:af12980ac515 6 // number of pixels on display
eencae 48:af12980ac515 7 #define WIDTH 84
eencae 48:af12980ac515 8 #define HEIGHT 48
eencae 48:af12980ac515 9 #define BANKS 6
eencae 48:af12980ac515 10
eencae 48:af12980ac515 11 /// Fill types for 2D shapes
eencae 48:af12980ac515 12 enum FillType {
eencae 48:af12980ac515 13 FILL_TRANSPARENT, ///< Transparent with outline
eencae 48:af12980ac515 14 FILL_BLACK, ///< Filled black
eencae 48:af12980ac515 15 FILL_WHITE, ///< Filled white (no outline)
eencae 48:af12980ac515 16 };
eencae 48:af12980ac515 17
eencae 25:444e55e2e419 18 /** N5110 Class
eencae 24:342bdb6679a1 19 @brief Library for interfacing with Nokia 5110 LCD display (https://www.sparkfun.com/products/10168) using the hardware SPI on the mbed.
eencae 24:342bdb6679a1 20 @brief The display is powered from a GPIO pin meaning it can be controlled via software. The LED backlight is also software-controllable (via PWM pin).
eencae 24:342bdb6679a1 21 @brief Can print characters and strings to the display using the included 5x7 font.
eencae 24:342bdb6679a1 22 @brief The library also implements a screen buffer so that individual pixels on the display (84 x 48) can be set, cleared and read.
eencae 24:342bdb6679a1 23 @brief The library can print primitive shapes (lines, circles, rectangles)
eencae 24:342bdb6679a1 24 @brief Acknowledgements to Chris Yan's Nokia_5110 Library.
eencae 24:342bdb6679a1 25
eencae 24:342bdb6679a1 26 @brief Revision 1.3
eencae 24:342bdb6679a1 27
eencae 24:342bdb6679a1 28 @author Craig A. Evans
eencae 24:342bdb6679a1 29 @date 7th February 2017
eencae 24:342bdb6679a1 30
eencae 24:342bdb6679a1 31 @code
eencae 24:342bdb6679a1 32
eencae 24:342bdb6679a1 33 #include "mbed.h"
eencae 24:342bdb6679a1 34 #include "N5110.h"
eencae 24:342bdb6679a1 35
eencae 37:c708b92609aa 36 // rows,cols
eencae 37:c708b92609aa 37 int sprite[8][5] = {
eencae 37:c708b92609aa 38 { 0,0,1,0,0 },
eencae 37:c708b92609aa 39 { 0,1,1,1,0 },
eencae 37:c708b92609aa 40 { 0,0,1,0,0 },
eencae 37:c708b92609aa 41 { 0,1,1,1,0 },
eencae 37:c708b92609aa 42 { 1,1,1,1,1 },
eencae 37:c708b92609aa 43 { 1,1,1,1,1 },
eencae 37:c708b92609aa 44 { 1,1,0,1,1 },
eencae 37:c708b92609aa 45 { 1,1,0,1,1 },
eencae 37:c708b92609aa 46 };
eencae 37:c708b92609aa 47
eencae 24:342bdb6679a1 48 // VCC,SCE,RST,D/C,MOSI,SCLK,LED
eencae 24:342bdb6679a1 49 //N5110 lcd(p7,p8,p9,p10,p11,p13,p21); // LPC1768 - pwr from GPIO
eencae 37:c708b92609aa 50 N5110 lcd(p8,p9,p10,p11,p13,p21); // LPC1768 - powered from +3V3 - JP1 in 2/3 position
eencae 37:c708b92609aa 51 //N5110 lcd(PTC9,PTC0,PTC7,PTD2,PTD1,PTC11); // K64F - pwr from 3V3
eencae 24:342bdb6679a1 52
eencae 24:342bdb6679a1 53 int main()
eencae 24:342bdb6679a1 54 {
eencae 24:342bdb6679a1 55 // first need to initialise display
eencae 24:342bdb6679a1 56 lcd.init();
eencae 45:97e54ea40dac 57
eencae 45:97e54ea40dac 58 // change set contrast in range 0.0 to 1.0
eencae 45:97e54ea40dac 59 // 0.4 appears to be a good starting point
eencae 45:97e54ea40dac 60 lcd.setContrast(0.4);
eencae 24:342bdb6679a1 61
eencae 24:342bdb6679a1 62 while(1) {
eencae 24:342bdb6679a1 63
eencae 24:342bdb6679a1 64 // these are default settings so not strictly needed
eencae 24:342bdb6679a1 65 lcd.normalMode(); // normal colour mode
eencae 24:342bdb6679a1 66 lcd.setBrightness(0.5); // put LED backlight on 50%
eencae 24:342bdb6679a1 67
eencae 37:c708b92609aa 68 lcd.clear();
valavanisalex 42:596c207519de 69 // x origin, y origin, rows, cols, sprite
eencae 37:c708b92609aa 70 lcd.drawSprite(20,6,8,5,(int *)sprite);
eencae 37:c708b92609aa 71 lcd.refresh();
eencae 37:c708b92609aa 72 wait(5.0);
eencae 37:c708b92609aa 73
eencae 24:342bdb6679a1 74 lcd.clear(); // clear buffer at start of every loop
eencae 24:342bdb6679a1 75 // can directly print strings at specified co-ordinates (must be less than 84 pixels to fit on display)
eencae 24:342bdb6679a1 76 lcd.printString("Hello, World!",0,0);
eencae 24:342bdb6679a1 77
eencae 24:342bdb6679a1 78 char buffer[14]; // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
eencae 24:342bdb6679a1 79 // so can display a string of a maximum 14 characters in length
eencae 24:342bdb6679a1 80 // or create formatted strings - ensure they aren't more than 14 characters long
eencae 24:342bdb6679a1 81 int temperature = 27;
eencae 24:342bdb6679a1 82 int length = sprintf(buffer,"T = %2d C",temperature); // print formatted data to buffer
eencae 24:342bdb6679a1 83 // it is important the format specifier ensures the length will fit in the buffer
eencae 24:342bdb6679a1 84 if (length <= 14) // if string will fit on display (assuming printing at x=0)
eencae 24:342bdb6679a1 85 lcd.printString(buffer,0,1); // display on screen
eencae 24:342bdb6679a1 86
eencae 24:342bdb6679a1 87 float pressure = 1012.3; // same idea with floats
eencae 24:342bdb6679a1 88 length = sprintf(buffer,"P = %.2f mb",pressure);
eencae 24:342bdb6679a1 89 if (length <= 14)
eencae 24:342bdb6679a1 90 lcd.printString(buffer,0,2);
eencae 24:342bdb6679a1 91
eencae 24:342bdb6679a1 92 // can also print individual characters at specified place
eencae 24:342bdb6679a1 93 lcd.printChar('X',5,3);
eencae 24:342bdb6679a1 94
eencae 24:342bdb6679a1 95 // draw a line across the display at y = 40 pixels (origin top-left)
eencae 24:342bdb6679a1 96 for (int i = 0; i < WIDTH; i++) {
eencae 46:6de3ebf5b195 97 lcd.setPixel(i,40,true);
eencae 24:342bdb6679a1 98 }
eencae 24:342bdb6679a1 99 // need to refresh display after setting pixels or writing strings
eencae 24:342bdb6679a1 100 lcd.refresh();
eencae 24:342bdb6679a1 101 wait(5.0);
valavanisalex 29:5bc91bd44c77 102
eencae 24:342bdb6679a1 103 // can check status of pixel using getPixel(x,y);
eencae 24:342bdb6679a1 104 lcd.clear(); // clear buffer
eencae 46:6de3ebf5b195 105 lcd.setPixel(2,2,true); // set random pixel in buffer
eencae 24:342bdb6679a1 106 lcd.refresh();
valavanisalex 29:5bc91bd44c77 107 wait(1.0);
valavanisalex 29:5bc91bd44c77 108
eencae 24:342bdb6679a1 109 int pixel_to_test = lcd.getPixel(2,2);
valavanisalex 29:5bc91bd44c77 110
eencae 24:342bdb6679a1 111 if ( pixel_to_test ) {
valavanisalex 29:5bc91bd44c77 112 lcd.printString("2,2 is set",0,4);
eencae 24:342bdb6679a1 113 }
valavanisalex 29:5bc91bd44c77 114
eencae 24:342bdb6679a1 115 // this one shouldn't be set
eencae 46:6de3ebf5b195 116 lcd.setPixel(3,3,false); // clear random pixel in buffer
eencae 46:6de3ebf5b195 117 lcd.refresh();
eencae 24:342bdb6679a1 118 pixel_to_test = lcd.getPixel(3,3);
valavanisalex 29:5bc91bd44c77 119
eencae 24:342bdb6679a1 120 if ( pixel_to_test == 0 ) {
valavanisalex 29:5bc91bd44c77 121 lcd.printString("3,3 is clear",0,5);
eencae 24:342bdb6679a1 122 }
valavanisalex 29:5bc91bd44c77 123
eencae 24:342bdb6679a1 124 lcd.refresh();
eencae 24:342bdb6679a1 125 wait(4.0);
valavanisalex 29:5bc91bd44c77 126
eencae 24:342bdb6679a1 127 lcd.clear(); // clear buffer
eencae 24:342bdb6679a1 128 lcd.inverseMode(); // invert colours
eencae 24:342bdb6679a1 129 lcd.setBrightness(1.0); // put LED backlight on full
eencae 24:342bdb6679a1 130
eencae 24:342bdb6679a1 131 float array[84];
eencae 24:342bdb6679a1 132
eencae 24:342bdb6679a1 133 for (int i = 0; i < 84; i++) {
eencae 24:342bdb6679a1 134 array[i] = 0.5 + 0.5*sin(i*2*3.14/84);
eencae 24:342bdb6679a1 135 }
eencae 24:342bdb6679a1 136
eencae 24:342bdb6679a1 137 // can also plot graphs - 84 elements only
eencae 24:342bdb6679a1 138 // values must be in range 0.0 - 1.0
eencae 24:342bdb6679a1 139 lcd.plotArray(array);
eencae 24:342bdb6679a1 140 lcd.refresh();
eencae 24:342bdb6679a1 141 wait(5.0);
valavanisalex 29:5bc91bd44c77 142
eencae 24:342bdb6679a1 143 lcd.clear();
eencae 24:342bdb6679a1 144 lcd.normalMode(); // normal colour mode back
eencae 24:342bdb6679a1 145 lcd.setBrightness(0.5); // put LED backlight on 50%
eencae 24:342bdb6679a1 146
eencae 24:342bdb6679a1 147 // example of drawing lines
eencae 24:342bdb6679a1 148 for (int x = 0; x < WIDTH ; x+=10) {
eencae 24:342bdb6679a1 149 // x0,y0,x1,y1,type 0-white,1-black,2-dotted
eencae 24:342bdb6679a1 150 lcd.drawLine(0,0,x,HEIGHT,2);
eencae 24:342bdb6679a1 151 }
eencae 24:342bdb6679a1 152 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 153 wait(5.0);
valavanisalex 29:5bc91bd44c77 154
valavanisalex 29:5bc91bd44c77 155
eencae 24:342bdb6679a1 156 lcd.clear();
eencae 24:342bdb6679a1 157 // example of how to draw circles
valavanisalex 33:d80e568a2e18 158 lcd.drawCircle(WIDTH/2,HEIGHT/2,20,FILL_BLACK); // x,y,radius,black fill
valavanisalex 33:d80e568a2e18 159 lcd.drawCircle(WIDTH/2,HEIGHT/2,10,FILL_WHITE); // x,y,radius,white fill
valavanisalex 33:d80e568a2e18 160 lcd.drawCircle(WIDTH/2,HEIGHT/2,30,FILL_TRANSPARENT); // x,y,radius,transparent with outline
eencae 24:342bdb6679a1 161 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 162 wait(5.0);
valavanisalex 29:5bc91bd44c77 163
eencae 24:342bdb6679a1 164 lcd.clear();
eencae 24:342bdb6679a1 165 // example of how to draw rectangles
eencae 24:342bdb6679a1 166 // origin x,y,width,height,type
valavanisalex 33:d80e568a2e18 167 lcd.drawRect(10,10,50,30,FILL_BLACK); // filled black rectangle
valavanisalex 33:d80e568a2e18 168 lcd.drawRect(15,15,20,10,FILL_WHITE); // filled white rectange (no outline)
eencae 37:c708b92609aa 169 lcd.drawRect(2,2,70,40,FILL_TRANSPARENT); // transparent, just outline
eencae 24:342bdb6679a1 170 lcd.refresh(); // refresh after drawing shapes
eencae 24:342bdb6679a1 171 wait(5.0);
eencae 37:c708b92609aa 172
eencae 24:342bdb6679a1 173 }
eencae 24:342bdb6679a1 174 }
eencae 24:342bdb6679a1 175
eencae 37:c708b92609aa 176
eencae 24:342bdb6679a1 177 @endcode
eencae 0:d563e74f0ae9 178 */
eencae 1:df68f34cd32d 179 class N5110
eencae 1:df68f34cd32d 180 {
valavanisalex 29:5bc91bd44c77 181 private:
valavanisalex 29:5bc91bd44c77 182 // objects
valavanisalex 29:5bc91bd44c77 183 SPI *_spi;
valavanisalex 29:5bc91bd44c77 184 PwmOut *_led;
valavanisalex 29:5bc91bd44c77 185 DigitalOut *_pwr;
valavanisalex 29:5bc91bd44c77 186 DigitalOut *_sce;
valavanisalex 29:5bc91bd44c77 187 DigitalOut *_rst;
valavanisalex 29:5bc91bd44c77 188 DigitalOut *_dc;
valavanisalex 29:5bc91bd44c77 189
valavanisalex 29:5bc91bd44c77 190 // variables
valavanisalex 29:5bc91bd44c77 191 unsigned char buffer[84][6]; // screen buffer - the 6 is for the banks - each one is 8 bits;
eencae 0:d563e74f0ae9 192
eencae 1:df68f34cd32d 193 public:
valavanisalex 29:5bc91bd44c77 194 /** Create a N5110 object connected to the specified pins
valavanisalex 29:5bc91bd44c77 195 *
valavanisalex 29:5bc91bd44c77 196 * @param pwr Pin connected to Vcc on the LCD display (pin 1)
valavanisalex 29:5bc91bd44c77 197 * @param sce Pin connected to chip enable (pin 3)
valavanisalex 29:5bc91bd44c77 198 * @param rst Pin connected to reset (pin 4)
valavanisalex 29:5bc91bd44c77 199 * @param dc Pin connected to data/command select (pin 5)
valavanisalex 29:5bc91bd44c77 200 * @param mosi Pin connected to data input (MOSI) (pin 6)
valavanisalex 29:5bc91bd44c77 201 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
valavanisalex 29:5bc91bd44c77 202 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
valavanisalex 29:5bc91bd44c77 203 *
valavanisalex 29:5bc91bd44c77 204 */
valavanisalex 29:5bc91bd44c77 205 N5110(PinName const pwrPin,
valavanisalex 29:5bc91bd44c77 206 PinName const scePin,
valavanisalex 29:5bc91bd44c77 207 PinName const rstPin,
valavanisalex 29:5bc91bd44c77 208 PinName const dcPin,
valavanisalex 29:5bc91bd44c77 209 PinName const mosiPin,
valavanisalex 29:5bc91bd44c77 210 PinName const sclkPin,
valavanisalex 29:5bc91bd44c77 211 PinName const ledPin);
eencae 17:780a542d5f8b 212
valavanisalex 29:5bc91bd44c77 213 /** Create a N5110 object connected to the specified pins (Vcc to +3V3)
valavanisalex 29:5bc91bd44c77 214 *
valavanisalex 29:5bc91bd44c77 215 * @param sce Pin connected to chip enable (pin 3)
valavanisalex 29:5bc91bd44c77 216 * @param rst Pin connected to reset (pin 4)
valavanisalex 29:5bc91bd44c77 217 * @param dc Pin connected to data/command select (pin 5)
valavanisalex 29:5bc91bd44c77 218 * @param mosi Pin connected to data input (MOSI) (pin 6)
valavanisalex 29:5bc91bd44c77 219 * @param sclk Pin connected to serial clock (SCLK) (pin 7)
valavanisalex 29:5bc91bd44c77 220 * @param led Pin connected to LED backlight (must be PWM) (pin 8)
valavanisalex 29:5bc91bd44c77 221 *
valavanisalex 29:5bc91bd44c77 222 */
valavanisalex 29:5bc91bd44c77 223 N5110(PinName const scePin,
valavanisalex 29:5bc91bd44c77 224 PinName const rstPin,
valavanisalex 29:5bc91bd44c77 225 PinName const dcPin,
valavanisalex 29:5bc91bd44c77 226 PinName const mosiPin,
valavanisalex 29:5bc91bd44c77 227 PinName const sclkPin,
valavanisalex 29:5bc91bd44c77 228 PinName const ledPin);
eencae 17:780a542d5f8b 229
valavanisalex 31:8a0c21042f82 230 /**
valavanisalex 31:8a0c21042f82 231 * Free allocated memory when object goes out of scope
valavanisalex 31:8a0c21042f82 232 */
valavanisalex 31:8a0c21042f82 233 ~N5110();
valavanisalex 31:8a0c21042f82 234
valavanisalex 29:5bc91bd44c77 235 /** Initialise display
valavanisalex 29:5bc91bd44c77 236 *
valavanisalex 29:5bc91bd44c77 237 * Powers up the display and turns on backlight (50% brightness default).
valavanisalex 29:5bc91bd44c77 238 * Sets the display up in horizontal addressing mode and with normal video mode.
valavanisalex 29:5bc91bd44c77 239 */
valavanisalex 29:5bc91bd44c77 240 void init();
eencae 17:780a542d5f8b 241
valavanisalex 29:5bc91bd44c77 242 /** Turn off
valavanisalex 29:5bc91bd44c77 243 *
valavanisalex 29:5bc91bd44c77 244 * Powers down the display and turns of the backlight.
valavanisalex 29:5bc91bd44c77 245 * Needs to be reinitialised before being re-used.
valavanisalex 29:5bc91bd44c77 246 */
valavanisalex 29:5bc91bd44c77 247 void turnOff();
eencae 17:780a542d5f8b 248
valavanisalex 29:5bc91bd44c77 249 /** Clear
valavanisalex 29:5bc91bd44c77 250 *
valavanisalex 29:5bc91bd44c77 251 * Clears the screen buffer.
valavanisalex 29:5bc91bd44c77 252 */
valavanisalex 29:5bc91bd44c77 253 void clear();
eencae 17:780a542d5f8b 254
eencae 44:57f9d32fb521 255 /** Set screen constrast
eencae 44:57f9d32fb521 256 * @param constrast - float in range 0.0 to 1.0 (0.40 to 0.60 is usually a good value)
eencae 44:57f9d32fb521 257 */
eencae 44:57f9d32fb521 258 void setContrast(float contrast);
eencae 44:57f9d32fb521 259
valavanisalex 29:5bc91bd44c77 260 /** Turn on normal video mode (default)
valavanisalex 29:5bc91bd44c77 261 * Black on white
valavanisalex 29:5bc91bd44c77 262 */
valavanisalex 29:5bc91bd44c77 263 void normalMode();
valavanisalex 29:5bc91bd44c77 264
valavanisalex 29:5bc91bd44c77 265 /** Turn on inverse video mode (default)
valavanisalex 29:5bc91bd44c77 266 * White on black
valavanisalex 29:5bc91bd44c77 267 */
valavanisalex 29:5bc91bd44c77 268 void inverseMode();
eencae 17:780a542d5f8b 269
valavanisalex 29:5bc91bd44c77 270 /** Set Brightness
valavanisalex 29:5bc91bd44c77 271 *
valavanisalex 29:5bc91bd44c77 272 * Sets brightness of LED backlight.
valavanisalex 29:5bc91bd44c77 273 * @param brightness - float in range 0.0 to 1.0
valavanisalex 29:5bc91bd44c77 274 */
valavanisalex 29:5bc91bd44c77 275 void setBrightness(float const brightness);
eencae 17:780a542d5f8b 276
valavanisalex 29:5bc91bd44c77 277 /** Print String
valavanisalex 29:5bc91bd44c77 278 *
valavanisalex 29:5bc91bd44c77 279 * Prints a string of characters to the screen buffer. String is cut-off after the 83rd pixel.
valavanisalex 29:5bc91bd44c77 280 * @param x - the column number (0 to 83)
valavanisalex 29:5bc91bd44c77 281 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
valavanisalex 29:5bc91bd44c77 282 */
valavanisalex 29:5bc91bd44c77 283 void printString(char const *str,
valavanisalex 29:5bc91bd44c77 284 unsigned int const x,
valavanisalex 29:5bc91bd44c77 285 unsigned int const y);
eencae 17:780a542d5f8b 286
valavanisalex 29:5bc91bd44c77 287 /** Print Character
valavanisalex 29:5bc91bd44c77 288 *
valavanisalex 29:5bc91bd44c77 289 * Sends a character to the screen buffer. Printed at the specified location. Character is cut-off after the 83rd pixel.
valavanisalex 29:5bc91bd44c77 290 * @param c - the character to print. Can print ASCII as so printChar('C').
valavanisalex 29:5bc91bd44c77 291 * @param x - the column number (0 to 83)
valavanisalex 29:5bc91bd44c77 292 * @param y - the row number (0 to 5) - the display is split into 6 banks - each bank can be considered a row
valavanisalex 29:5bc91bd44c77 293 */
valavanisalex 29:5bc91bd44c77 294 void printChar(char const c,
valavanisalex 29:5bc91bd44c77 295 unsigned int const x,
valavanisalex 29:5bc91bd44c77 296 unsigned int const y);
eencae 17:780a542d5f8b 297
valavanisalex 42:596c207519de 298 /**
valavanisalex 42:596c207519de 299 * @brief Set a Pixel
valavanisalex 29:5bc91bd44c77 300 *
valavanisalex 42:596c207519de 301 * @param x The x co-ordinate of the pixel (0 to 83)
valavanisalex 42:596c207519de 302 * @param y The y co-ordinate of the pixel (0 to 47)
valavanisalex 42:596c207519de 303 * @param state The state of the pixel [true=black (default), false=white]
valavanisalex 42:596c207519de 304 *
valavanisalex 42:596c207519de 305 * @details This function sets the state of a pixel in the screen buffer.
valavanisalex 42:596c207519de 306 * The third parameter can be omitted,
valavanisalex 29:5bc91bd44c77 307 */
valavanisalex 29:5bc91bd44c77 308 void setPixel(unsigned int const x,
valavanisalex 42:596c207519de 309 unsigned int const y,
valavanisalex 42:596c207519de 310 bool const state = true);
eencae 17:780a542d5f8b 311
valavanisalex 42:596c207519de 312 /**
valavanisalex 42:596c207519de 313 * @brief Clear a Pixel
valavanisalex 29:5bc91bd44c77 314 *
valavanisalex 29:5bc91bd44c77 315 * @param x - the x co-ordinate of the pixel (0 to 83)
valavanisalex 29:5bc91bd44c77 316 * @param y - the y co-ordinate of the pixel (0 to 47)
valavanisalex 42:596c207519de 317 *
valavanisalex 42:596c207519de 318 * @details This function clears pixel in the screen buffer
valavanisalex 42:596c207519de 319 *
valavanisalex 42:596c207519de 320 * @deprecated Use setPixel(x, y, false) instead
valavanisalex 29:5bc91bd44c77 321 */
valavanisalex 29:5bc91bd44c77 322 void clearPixel(unsigned int const x,
valavanisalex 42:596c207519de 323 unsigned int const y)
valavanisalex 42:596c207519de 324 __attribute__((deprecated("Use setPixel(x,y,false) instead")));
eencae 17:780a542d5f8b 325
valavanisalex 29:5bc91bd44c77 326 /** Get a Pixel
valavanisalex 29:5bc91bd44c77 327 *
valavanisalex 29:5bc91bd44c77 328 * This function gets the status of a pixel in the screen buffer.
valavanisalex 29:5bc91bd44c77 329 * @param x - the x co-ordinate of the pixel (0 to 83)
valavanisalex 29:5bc91bd44c77 330 * @param y - the y co-ordinate of the pixel (0 to 47)
valavanisalex 29:5bc91bd44c77 331 * @returns
valavanisalex 29:5bc91bd44c77 332 * 0 - pixel is clear
valavanisalex 29:5bc91bd44c77 333 * 1 - pixel is set
valavanisalex 29:5bc91bd44c77 334 */
valavanisalex 29:5bc91bd44c77 335 int getPixel(unsigned int const x,
valavanisalex 29:5bc91bd44c77 336 unsigned int const y) const;
eencae 17:780a542d5f8b 337
valavanisalex 29:5bc91bd44c77 338 /** Refresh display
valavanisalex 29:5bc91bd44c77 339 *
valavanisalex 29:5bc91bd44c77 340 * This functions sends the screen buffer to the display.
valavanisalex 29:5bc91bd44c77 341 */
valavanisalex 29:5bc91bd44c77 342 void refresh();
valavanisalex 29:5bc91bd44c77 343
valavanisalex 29:5bc91bd44c77 344 /** Randomise buffer
valavanisalex 29:5bc91bd44c77 345 *
valavanisalex 29:5bc91bd44c77 346 * This function fills the buffer with random data. Can be used to test the display.
valavanisalex 29:5bc91bd44c77 347 * A call to refresh() must be made to update the display to reflect the change in pixels.
valavanisalex 29:5bc91bd44c77 348 * The seed is not set and so the generated pattern will probably be the same each time.
valavanisalex 29:5bc91bd44c77 349 * TODO: Randomise the seed - maybe using the noise on the AnalogIn pins.
valavanisalex 29:5bc91bd44c77 350 */
valavanisalex 29:5bc91bd44c77 351 void randomiseBuffer();
eencae 17:780a542d5f8b 352
valavanisalex 29:5bc91bd44c77 353 /** Plot Array
valavanisalex 29:5bc91bd44c77 354 *
valavanisalex 29:5bc91bd44c77 355 * This function plots a one-dimensional array in the buffer.
valavanisalex 29:5bc91bd44c77 356 * @param array[] - y values of the plot. Values should be normalised in the range 0.0 to 1.0. First 84 plotted.
valavanisalex 29:5bc91bd44c77 357 */
valavanisalex 29:5bc91bd44c77 358 void plotArray(float const array[]);
eencae 17:780a542d5f8b 359
valavanisalex 29:5bc91bd44c77 360 /** Draw Circle
valavanisalex 29:5bc91bd44c77 361 *
valavanisalex 29:5bc91bd44c77 362 * This function draws a circle at the specified origin with specified radius in the screen buffer
valavanisalex 29:5bc91bd44c77 363 * Uses the midpoint circle algorithm.
valavanisalex 29:5bc91bd44c77 364 * @see http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
valavanisalex 33:d80e568a2e18 365 * @param x0 - x-coordinate of centre
valavanisalex 33:d80e568a2e18 366 * @param y0 - y-coordinate of centre
valavanisalex 29:5bc91bd44c77 367 * @param radius - radius of circle in pixels
valavanisalex 33:d80e568a2e18 368 * @param fill - fill-type for the shape
valavanisalex 29:5bc91bd44c77 369 */
valavanisalex 29:5bc91bd44c77 370 void drawCircle(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 371 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 372 unsigned int const radius,
valavanisalex 33:d80e568a2e18 373 FillType const fill);
eencae 1:df68f34cd32d 374
valavanisalex 29:5bc91bd44c77 375 /** Draw Line
valavanisalex 29:5bc91bd44c77 376 *
valavanisalex 29:5bc91bd44c77 377 * This function draws a line between the specified points using linear interpolation.
valavanisalex 29:5bc91bd44c77 378 * @param x0 - x-coordinate of first point
valavanisalex 29:5bc91bd44c77 379 * @param y0 - y-coordinate of first point
valavanisalex 29:5bc91bd44c77 380 * @param x1 - x-coordinate of last point
valavanisalex 29:5bc91bd44c77 381 * @param y1 - y-coordinate of last point
valavanisalex 29:5bc91bd44c77 382 * @param type - 0 white,1 black,2 dotted
valavanisalex 29:5bc91bd44c77 383 */
valavanisalex 29:5bc91bd44c77 384 void drawLine(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 385 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 386 unsigned int const x1,
valavanisalex 29:5bc91bd44c77 387 unsigned int const y1,
valavanisalex 29:5bc91bd44c77 388 unsigned int const type);
eencae 17:780a542d5f8b 389
valavanisalex 29:5bc91bd44c77 390 /** Draw Rectangle
valavanisalex 29:5bc91bd44c77 391 *
valavanisalex 29:5bc91bd44c77 392 * This function draws a rectangle.
valavanisalex 29:5bc91bd44c77 393 * @param x0 - x-coordinate of origin (top-left)
valavanisalex 29:5bc91bd44c77 394 * @param y0 - y-coordinate of origin (top-left)
valavanisalex 29:5bc91bd44c77 395 * @param width - width of rectangle
valavanisalex 29:5bc91bd44c77 396 * @param height - height of rectangle
valavanisalex 33:d80e568a2e18 397 * @param fill - fill-type for the shape
valavanisalex 29:5bc91bd44c77 398 */
valavanisalex 29:5bc91bd44c77 399 void drawRect(unsigned int const x0,
valavanisalex 29:5bc91bd44c77 400 unsigned int const y0,
valavanisalex 29:5bc91bd44c77 401 unsigned int const width,
valavanisalex 29:5bc91bd44c77 402 unsigned int const height,
valavanisalex 33:d80e568a2e18 403 FillType const fill);
eencae 17:780a542d5f8b 404
eencae 36:00ebd449b6f3 405 /** Draw Sprite
eencae 36:00ebd449b6f3 406 *
eencae 36:00ebd449b6f3 407 * This function draws a sprite as defined in a 2D array
eencae 36:00ebd449b6f3 408 * @param x0 - x-coordinate of origin (top-left)
eencae 36:00ebd449b6f3 409 * @param y0 - y-coordinate of origin (top-left)
eencae 36:00ebd449b6f3 410 * @param nrows - number of rows in sprite
eencae 36:00ebd449b6f3 411 * @param ncols - number of columns in sprite
eencae 36:00ebd449b6f3 412 * @param sprite - 2D array representing the sprite
eencae 36:00ebd449b6f3 413 */
eencae 36:00ebd449b6f3 414 void drawSprite(int x0,
eencae 36:00ebd449b6f3 415 int y0,
eencae 36:00ebd449b6f3 416 int nrows,
eencae 36:00ebd449b6f3 417 int ncols,
eencae 46:6de3ebf5b195 418 int *sprite);
valavanisalex 42:596c207519de 419
valavanisalex 42:596c207519de 420
eencae 1:df68f34cd32d 421 private:
eencae 24:342bdb6679a1 422 // methods
valavanisalex 29:5bc91bd44c77 423 void setXYAddress(unsigned int const x,
valavanisalex 29:5bc91bd44c77 424 unsigned int const y);
valavanisalex 29:5bc91bd44c77 425 void initSPI();
valavanisalex 29:5bc91bd44c77 426 void turnOn();
valavanisalex 29:5bc91bd44c77 427 void reset();
valavanisalex 29:5bc91bd44c77 428 void clearRAM();
valavanisalex 29:5bc91bd44c77 429 void sendCommand(unsigned char command);
valavanisalex 29:5bc91bd44c77 430 void sendData(unsigned char data);
eencae 44:57f9d32fb521 431 void setTempCoefficient(char tc); // 0 to 3
eencae 44:57f9d32fb521 432 void setBias(char bias); // 0 to 7
eencae 0:d563e74f0ae9 433 };
eencae 0:d563e74f0ae9 434
eencae 0:d563e74f0ae9 435 const unsigned char font5x7[480] = {
valavanisalex 29:5bc91bd44c77 436 0x00, 0x00, 0x00, 0x00, 0x00,// (space)
valavanisalex 29:5bc91bd44c77 437 0x00, 0x00, 0x5F, 0x00, 0x00,// !
valavanisalex 29:5bc91bd44c77 438 0x00, 0x07, 0x00, 0x07, 0x00,// "
valavanisalex 29:5bc91bd44c77 439 0x14, 0x7F, 0x14, 0x7F, 0x14,// #
valavanisalex 29:5bc91bd44c77 440 0x24, 0x2A, 0x7F, 0x2A, 0x12,// $
valavanisalex 29:5bc91bd44c77 441 0x23, 0x13, 0x08, 0x64, 0x62,// %
valavanisalex 29:5bc91bd44c77 442 0x36, 0x49, 0x55, 0x22, 0x50,// &
valavanisalex 29:5bc91bd44c77 443 0x00, 0x05, 0x03, 0x00, 0x00,// '
valavanisalex 29:5bc91bd44c77 444 0x00, 0x1C, 0x22, 0x41, 0x00,// (
valavanisalex 29:5bc91bd44c77 445 0x00, 0x41, 0x22, 0x1C, 0x00,// )
valavanisalex 29:5bc91bd44c77 446 0x08, 0x2A, 0x1C, 0x2A, 0x08,// *
valavanisalex 29:5bc91bd44c77 447 0x08, 0x08, 0x3E, 0x08, 0x08,// +
valavanisalex 29:5bc91bd44c77 448 0x00, 0x50, 0x30, 0x00, 0x00,// ,
valavanisalex 29:5bc91bd44c77 449 0x08, 0x08, 0x08, 0x08, 0x08,// -
valavanisalex 29:5bc91bd44c77 450 0x00, 0x60, 0x60, 0x00, 0x00,// .
valavanisalex 29:5bc91bd44c77 451 0x20, 0x10, 0x08, 0x04, 0x02,// /
valavanisalex 29:5bc91bd44c77 452 0x3E, 0x51, 0x49, 0x45, 0x3E,// 0
valavanisalex 29:5bc91bd44c77 453 0x00, 0x42, 0x7F, 0x40, 0x00,// 1
valavanisalex 29:5bc91bd44c77 454 0x42, 0x61, 0x51, 0x49, 0x46,// 2
valavanisalex 29:5bc91bd44c77 455 0x21, 0x41, 0x45, 0x4B, 0x31,// 3
valavanisalex 29:5bc91bd44c77 456 0x18, 0x14, 0x12, 0x7F, 0x10,// 4
valavanisalex 29:5bc91bd44c77 457 0x27, 0x45, 0x45, 0x45, 0x39,// 5
valavanisalex 29:5bc91bd44c77 458 0x3C, 0x4A, 0x49, 0x49, 0x30,// 6
valavanisalex 29:5bc91bd44c77 459 0x01, 0x71, 0x09, 0x05, 0x03,// 7
valavanisalex 29:5bc91bd44c77 460 0x36, 0x49, 0x49, 0x49, 0x36,// 8
valavanisalex 29:5bc91bd44c77 461 0x06, 0x49, 0x49, 0x29, 0x1E,// 9
valavanisalex 29:5bc91bd44c77 462 0x00, 0x36, 0x36, 0x00, 0x00,// :
valavanisalex 29:5bc91bd44c77 463 0x00, 0x56, 0x36, 0x00, 0x00,// ;
valavanisalex 29:5bc91bd44c77 464 0x00, 0x08, 0x14, 0x22, 0x41,// <
valavanisalex 29:5bc91bd44c77 465 0x14, 0x14, 0x14, 0x14, 0x14,// =
valavanisalex 29:5bc91bd44c77 466 0x41, 0x22, 0x14, 0x08, 0x00,// >
valavanisalex 29:5bc91bd44c77 467 0x02, 0x01, 0x51, 0x09, 0x06,// ?
valavanisalex 29:5bc91bd44c77 468 0x32, 0x49, 0x79, 0x41, 0x3E,// @
valavanisalex 29:5bc91bd44c77 469 0x7E, 0x11, 0x11, 0x11, 0x7E,// A
valavanisalex 29:5bc91bd44c77 470 0x7F, 0x49, 0x49, 0x49, 0x36,// B
valavanisalex 29:5bc91bd44c77 471 0x3E, 0x41, 0x41, 0x41, 0x22,// C
valavanisalex 29:5bc91bd44c77 472 0x7F, 0x41, 0x41, 0x22, 0x1C,// D
valavanisalex 29:5bc91bd44c77 473 0x7F, 0x49, 0x49, 0x49, 0x41,// E
valavanisalex 29:5bc91bd44c77 474 0x7F, 0x09, 0x09, 0x01, 0x01,// F
valavanisalex 29:5bc91bd44c77 475 0x3E, 0x41, 0x41, 0x51, 0x32,// G
valavanisalex 29:5bc91bd44c77 476 0x7F, 0x08, 0x08, 0x08, 0x7F,// H
valavanisalex 29:5bc91bd44c77 477 0x00, 0x41, 0x7F, 0x41, 0x00,// I
valavanisalex 29:5bc91bd44c77 478 0x20, 0x40, 0x41, 0x3F, 0x01,// J
valavanisalex 29:5bc91bd44c77 479 0x7F, 0x08, 0x14, 0x22, 0x41,// K
valavanisalex 29:5bc91bd44c77 480 0x7F, 0x40, 0x40, 0x40, 0x40,// L
valavanisalex 29:5bc91bd44c77 481 0x7F, 0x02, 0x04, 0x02, 0x7F,// M
valavanisalex 29:5bc91bd44c77 482 0x7F, 0x04, 0x08, 0x10, 0x7F,// N
valavanisalex 29:5bc91bd44c77 483 0x3E, 0x41, 0x41, 0x41, 0x3E,// O
valavanisalex 29:5bc91bd44c77 484 0x7F, 0x09, 0x09, 0x09, 0x06,// P
valavanisalex 29:5bc91bd44c77 485 0x3E, 0x41, 0x51, 0x21, 0x5E,// Q
valavanisalex 29:5bc91bd44c77 486 0x7F, 0x09, 0x19, 0x29, 0x46,// R
valavanisalex 29:5bc91bd44c77 487 0x46, 0x49, 0x49, 0x49, 0x31,// S
valavanisalex 29:5bc91bd44c77 488 0x01, 0x01, 0x7F, 0x01, 0x01,// T
valavanisalex 29:5bc91bd44c77 489 0x3F, 0x40, 0x40, 0x40, 0x3F,// U
valavanisalex 29:5bc91bd44c77 490 0x1F, 0x20, 0x40, 0x20, 0x1F,// V
valavanisalex 29:5bc91bd44c77 491 0x7F, 0x20, 0x18, 0x20, 0x7F,// W
valavanisalex 29:5bc91bd44c77 492 0x63, 0x14, 0x08, 0x14, 0x63,// X
valavanisalex 29:5bc91bd44c77 493 0x03, 0x04, 0x78, 0x04, 0x03,// Y
valavanisalex 29:5bc91bd44c77 494 0x61, 0x51, 0x49, 0x45, 0x43,// Z
valavanisalex 29:5bc91bd44c77 495 0x00, 0x00, 0x7F, 0x41, 0x41,// [
valavanisalex 29:5bc91bd44c77 496 0x02, 0x04, 0x08, 0x10, 0x20,// "\"
valavanisalex 29:5bc91bd44c77 497 0x41, 0x41, 0x7F, 0x00, 0x00,// ]
valavanisalex 29:5bc91bd44c77 498 0x04, 0x02, 0x01, 0x02, 0x04,// ^
valavanisalex 29:5bc91bd44c77 499 0x40, 0x40, 0x40, 0x40, 0x40,// _
valavanisalex 29:5bc91bd44c77 500 0x00, 0x01, 0x02, 0x04, 0x00,// `
valavanisalex 29:5bc91bd44c77 501 0x20, 0x54, 0x54, 0x54, 0x78,// a
valavanisalex 29:5bc91bd44c77 502 0x7F, 0x48, 0x44, 0x44, 0x38,// b
valavanisalex 29:5bc91bd44c77 503 0x38, 0x44, 0x44, 0x44, 0x20,// c
valavanisalex 29:5bc91bd44c77 504 0x38, 0x44, 0x44, 0x48, 0x7F,// d
valavanisalex 29:5bc91bd44c77 505 0x38, 0x54, 0x54, 0x54, 0x18,// e
valavanisalex 29:5bc91bd44c77 506 0x08, 0x7E, 0x09, 0x01, 0x02,// f
valavanisalex 29:5bc91bd44c77 507 0x08, 0x14, 0x54, 0x54, 0x3C,// g
valavanisalex 29:5bc91bd44c77 508 0x7F, 0x08, 0x04, 0x04, 0x78,// h
valavanisalex 29:5bc91bd44c77 509 0x00, 0x44, 0x7D, 0x40, 0x00,// i
valavanisalex 29:5bc91bd44c77 510 0x20, 0x40, 0x44, 0x3D, 0x00,// j
valavanisalex 29:5bc91bd44c77 511 0x00, 0x7F, 0x10, 0x28, 0x44,// k
valavanisalex 29:5bc91bd44c77 512 0x00, 0x41, 0x7F, 0x40, 0x00,// l
valavanisalex 29:5bc91bd44c77 513 0x7C, 0x04, 0x18, 0x04, 0x78,// m
valavanisalex 29:5bc91bd44c77 514 0x7C, 0x08, 0x04, 0x04, 0x78,// n
valavanisalex 29:5bc91bd44c77 515 0x38, 0x44, 0x44, 0x44, 0x38,// o
valavanisalex 29:5bc91bd44c77 516 0x7C, 0x14, 0x14, 0x14, 0x08,// p
valavanisalex 29:5bc91bd44c77 517 0x08, 0x14, 0x14, 0x18, 0x7C,// q
valavanisalex 29:5bc91bd44c77 518 0x7C, 0x08, 0x04, 0x04, 0x08,// r
valavanisalex 29:5bc91bd44c77 519 0x48, 0x54, 0x54, 0x54, 0x20,// s
valavanisalex 29:5bc91bd44c77 520 0x04, 0x3F, 0x44, 0x40, 0x20,// t
valavanisalex 29:5bc91bd44c77 521 0x3C, 0x40, 0x40, 0x20, 0x7C,// u
valavanisalex 29:5bc91bd44c77 522 0x1C, 0x20, 0x40, 0x20, 0x1C,// v
valavanisalex 29:5bc91bd44c77 523 0x3C, 0x40, 0x30, 0x40, 0x3C,// w
valavanisalex 29:5bc91bd44c77 524 0x44, 0x28, 0x10, 0x28, 0x44,// x
valavanisalex 29:5bc91bd44c77 525 0x0C, 0x50, 0x50, 0x50, 0x3C,// y
valavanisalex 29:5bc91bd44c77 526 0x44, 0x64, 0x54, 0x4C, 0x44,// z
valavanisalex 29:5bc91bd44c77 527 0x00, 0x08, 0x36, 0x41, 0x00,// {
valavanisalex 29:5bc91bd44c77 528 0x00, 0x00, 0x7F, 0x00, 0x00,// |
valavanisalex 29:5bc91bd44c77 529 0x00, 0x41, 0x36, 0x08, 0x00,// }
valavanisalex 29:5bc91bd44c77 530 0x08, 0x08, 0x2A, 0x1C, 0x08,// ->
valavanisalex 29:5bc91bd44c77 531 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
eencae 0:d563e74f0ae9 532 };
eencae 0:d563e74f0ae9 533
valavanisalex 29:5bc91bd44c77 534 #endif