main.cpp

00001 #include "mbed.h"
00002 #include "freetronicsLCDShield.h"
00003 
00004 /* These are the custom chars 8 of them 1 per row.                  */
00005 const char CGRAM_DATA[64]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x1F,
00006                            0x00,0x00,0x00,0x00,0x00,0x00,0x1F,0x1F,
00007                            0x00,0x00,0x00,0x00,0x00,0x1F,0x1F,0x1F,
00008                            0x00,0x00,0x00,0x00,0x1F,0x1F,0x1F,0x1F,
00009                            0x00,0x00,0x00,0x1F,0x1F,0x1F,0x1F,0x1F,
00010                            0x00,0x00,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,
00011                            0x00,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,
00012                            0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F};
00013 
00014 /* Create a freetronics LCD Shield object named LCD                 */
00015 /* freetronicsLCDShield LCD(rs, e, d0, d1, d2, d3, bl, a0);         */
00016 /* These are the connections for the Arduino footprint on the KL25Z */
00017 freetronicsLCDShield LCD(PTA13, PTD5, PTA4, PTA5, PTC8, PTC9, PTA12, PTB0);
00018 
00019 int main() {
00020     // Write custom generated chars to the 
00021     LCD.writeCGRAM (0x00, &CGRAM_DATA[0], 8);
00022     LCD.writeCGRAM (0x08, &CGRAM_DATA[8], 8);
00023     LCD.writeCGRAM (0x10, &CGRAM_DATA[16], 8);
00024     LCD.writeCGRAM (0x18, &CGRAM_DATA[24], 8);
00025     LCD.writeCGRAM (0x20, &CGRAM_DATA[32], 8);
00026     LCD.writeCGRAM (0x28, &CGRAM_DATA[40], 8);
00027     LCD.writeCGRAM (0x30, &CGRAM_DATA[48], 8);
00028     LCD.writeCGRAM (0x38, &CGRAM_DATA[56], 8);
00029     
00030     LCD.cls();
00031     
00032     
00033     // The backlight can be turned on or off //
00034     LCD.setBackLight(true); wait(2.0); 
00035     // The setBackLight method is overloaded so you can specify it's intensity by supplying it with a float value
00036     LCD.setBackLight((float) 0.05);
00037     
00038     while (true) {
00039         LCD.cls();
00040         LCD.setCursor(false);
00041         // You may want to set the cursor position at a specific location
00042         LCD.setCursorPosition (0, 0);
00043         LCD.printf("* Hello  world *");
00044     
00045         // Shift the text on the LCD left ...
00046         for(int i = 0; i < 3; i++) {LCD.shift(true); wait(0.5);}
00047         
00048         // Shift right ...
00049         for(int i = 0; i < 6; i++) {LCD.shift(false); wait(0.5);}
00050         
00051         // Shift the text back to left ...
00052         for(int i = 0; i < 3; i++) {LCD.shift(true); wait(0.5);}
00053         
00054         LCD.setCursorPosition (1,0);
00055         // Let the cursor blink 
00056         LCD.setCursor(true, true);
00057         LCD.putc('A'); wait(0.5);    
00058         LCD.putc('w'); wait(0.5);     
00059         LCD.putc('e'); wait(0.5);    
00060         LCD.putc('s'); wait(0.5);    
00061         LCD.putc('o'); wait(0.5);    
00062         LCD.putc('m'); wait(0.5);    
00063         LCD.putc('e'); wait(0.5);    
00064         
00065         LCD.cls();
00066         LCD.setCursor(false);
00067         // You may want to set the cursor position at a specific location
00068         LCD.setCursorPosition (0, 0);
00069         LCD.printf("Backlight = %0.3f", 0.000);
00070         int n = 0;
00071 
00072         for (float intensity = 0.125; intensity <= 1.0; intensity += 0.125) {
00073            // Fire up the backlight 
00074             LCD.setBackLight((float) intensity);
00075             // Display intensity
00076             LCD.setCursorPosition(0,11);
00077             LCD.printf("%0.3f", intensity);
00078             
00079             // Print the custom char's 0 .. 7
00080             LCD.setCursorPosition(1,4+n);
00081             LCD.putc(n);
00082             n++;
00083             wait(0.5);
00084         } 
00085    }
00086 }