main.cpp

00001 /*
00002  Demonstrate 0.96 in. OLED module (128x64/SPI). Revised for use with ST Nucleo L152RE
00003  
00004  Note:  On 16 pin OLED module from Taobao, MOSI connects to module D1
00005         and CLK (also called SCK) connects to module D0. Module RW and RD lines
00006         are connected to GND.
00007 */
00008 
00009 #include "mbed.h"
00010 
00011 #include "ssd1306.h"
00012 #include "standard_font.h"
00013 #include "bold_font.h"
00014 
00015 /* definitions for ST Nucleo L152RE  */
00016 #define CSEL  PB_6  // CS  D10
00017 #define RST   PC_7  //     D9
00018 #define DCMD  PA_9  // DC  D8
00019 #define CLK   PA_5  // CLK D13
00020 #define DATA  PA_7  // MOSI D11
00021 
00022 // SSD1306 oled(p8 /* cs */, p9 /* reset */, p14 /* dc */, p13 /* clock */, p11 /* data */); // LPC1768
00023 // SSD1306 oled(PTA13 /* cs */, PTD5 /* reset */, PTD0 /* dc */, PTD1 /* clock */, PTD2 /* data */); // KL25Z
00024 // SSD1306 oled(D10 /* cs */, D9 /* reset */, D8 /* dc */, D13 /* clock */, D11 /* data */); // KL05Z or Arduino styles
00025 SSD1306 oled(CSEL, RST, DCMD, CLK, DATA);   // STM32 Nucleo
00026 
00027 #define NUMFLAKES 10
00028 #define XPOS 0
00029 #define YPOS 1
00030 #define DELTAY 2
00031 
00032 #define LOGO16_GLCD_HEIGHT 16 
00033 #define LOGO16_GLCD_WIDTH  16 
00034 
00035 static const unsigned char  logo16_glcd_bmp[] =
00036 { 0x00, 0xc0, // B00000000, B11000000,
00037   0x01, 0xc0, // B00000001, B11000000,
00038   0x01, 0xc0, // B00000001, B11000000,
00039   0x03, 0xe0, // B00000011, B11100000,
00040   0xf3, 0xe0, // B11110011, B11100000,
00041   0xfe, 0xf8, // B11111110, B11111000,
00042   0x7e, 0xff, // B01111110, B11111111,
00043   0x33, 0x9f, // B00110011, B10011111,
00044   0x1f, 0xfc, // B00011111, B11111100,
00045   0x0d, 0x70, // B00001101, B01110000,
00046   0x1b, 0xa0, // B00011011, B10100000,
00047   0x3f, 0xe0, // B00111111, B11100000,
00048   0x3f, 0xf0, // B00111111, B11110000,
00049   0x7c, 0xf0, // B01111100, B11110000,
00050   0x70, 0x70, // B01110000, B01110000,
00051   0x00, 0x30 }; // B00000000, B00110000 };
00052 
00053 void testdrawbitmap(const unsigned char *bitmap, int w, int h) {
00054   uint8_t icons[NUMFLAKES][3];
00055   srand((unsigned int)time(NULL)); // srandom(123);     // whatever seed
00056   int i;
00057  
00058   // initialize
00059   for (uint8_t f=0; f< NUMFLAKES; f++) {
00060     icons[f][XPOS] = rand() % SSD1306_LCDWIDTH; // display.width();
00061     icons[f][YPOS] = 0;
00062     icons[f][DELTAY] = rand() % 5 + 1;
00063 #if 0
00064     Serial.print("x: ");
00065     Serial.print(icons[f][XPOS], DEC);
00066     Serial.print(" y: ");
00067     Serial.print(icons[f][YPOS], DEC);
00068     Serial.print(" dy: ");
00069     Serial.println(icons[f][DELTAY], DEC);
00070 #endif
00071   }
00072 
00073   i = 0;
00074   while (1) {
00075     // draw each icon
00076     for (uint8_t f=0; f< NUMFLAKES; f++) {
00077       oled.drawBitmap(icons[f][XPOS], icons[f][YPOS], logo16_glcd_bmp, w, h, 1); // WHITE);
00078     }
00079     oled.update();
00080     wait(0.2); // delay(200);
00081     
00082     // then erase it + move it
00083     for (uint8_t f=0; f< NUMFLAKES; f++) {
00084       oled.drawBitmap(icons[f][XPOS], icons[f][YPOS],  logo16_glcd_bmp, w, h, 0); // BLACK);
00085       // move it
00086       icons[f][YPOS] += icons[f][DELTAY];
00087       // if its gone, reinit
00088       if (icons[f][YPOS] > SSD1306_LCDHEIGHT) { // display.height()) {
00089         icons[f][XPOS] = rand() % SSD1306_LCDWIDTH; // display.width();
00090         icons[f][YPOS] = 0;
00091         icons[f][DELTAY] = rand() % 5 + 1;
00092       }
00093     }
00094     if (i++ > 100) break;
00095    }
00096 
00097 }
00098 
00099 void testdrawline() {  
00100   for (int16_t i=0; i<SSD1306_LCDWIDTH; i+=4) {
00101     oled.line(0, 0, i, SSD1306_LCDHEIGHT-1);
00102     oled.update();
00103   }
00104   for (int16_t i=0; i<SSD1306_LCDHEIGHT; i+=4) {
00105     oled.line(0, 0, SSD1306_LCDWIDTH-1, i);
00106     oled.update();
00107   }
00108   wait(0.25); // delay(250);
00109   
00110   oled.clear();
00111   for (int16_t i=0; i<SSD1306_LCDWIDTH; i+=4) {
00112     oled.line(0, SSD1306_LCDHEIGHT-1, i, 0);
00113     oled.update();
00114   }
00115   for (int16_t i=SSD1306_LCDHEIGHT-1; i>=0; i-=4) {
00116     oled.line(0, SSD1306_LCDHEIGHT-1, SSD1306_LCDWIDTH-1, i);
00117     oled.update();
00118   }
00119   wait(0.25); // delay(250);
00120   
00121   oled.clear();
00122   for (int16_t i=SSD1306_LCDWIDTH-1; i>=0; i-=4) {
00123     oled.line(SSD1306_LCDWIDTH-1, SSD1306_LCDHEIGHT-1, i, 0);
00124     oled.update();
00125   }
00126   for (int16_t i=SSD1306_LCDHEIGHT-1; i>=0; i-=4) {
00127     oled.line(SSD1306_LCDWIDTH-1, SSD1306_LCDHEIGHT-1, 0, i);
00128     oled.update();
00129   }
00130   wait(0.25); // delay(250);
00131 
00132   oled.clear();
00133   for (int16_t i=0; i<SSD1306_LCDHEIGHT; i+=4) {
00134     oled.line(SSD1306_LCDWIDTH-1, 0, 0, i);
00135     oled.update();
00136   }
00137   for (int16_t i=0; i<SSD1306_LCDWIDTH; i+=4) {
00138     oled.line(SSD1306_LCDWIDTH-1, 0, i, SSD1306_LCDHEIGHT-1); 
00139     oled.update();
00140   }
00141   wait(0.25);
00142 }
00143 
00144 int main()
00145 {
00146     oled.initialise();
00147     oled.clear();
00148     oled.set_contrast(255); // max contrast
00149     
00150     while(1)
00151     {
00152         
00153     oled.drawBitmap(30, 16,  logo16_glcd_bmp, 16, 16);
00154     oled.update();
00155     wait(3);
00156     
00157     testdrawline();
00158     
00159     oled.clear();
00160     testdrawbitmap(logo16_glcd_bmp, LOGO16_GLCD_HEIGHT, LOGO16_GLCD_WIDTH);
00161 
00162     oled.set_font(bold_font, 8);
00163     oled.printf("Heading\r\n");
00164 
00165     oled.set_font(standard_font, 6);
00166     oled.printf("Hello World!\r\n");
00167     oled.printf("Some more text here...\r\n\r\n\r\n\r\n");
00168     // oled.set_font(bold_font, 8);
00169     oled.line(127, 0, 0, 63);
00170 
00171     oled.update();
00172     wait(1);
00173 
00174     int i = 10;
00175     while (i > 0)
00176     {
00177         wait(1);
00178         oled.printf("%d\r\n", i--);
00179         oled.update();
00180         oled.scroll_up();
00181     }
00182     
00183     oled.clear();
00184     
00185     } // end outside loop for OLED demo
00186 }
00187 
00188 // EOF