main.cpp

00001 #include "uLCD_4DGL.h"
00002 #include "mbed.h"
00003 #include "rtos.h"
00004 #include "SongPlayer.h"
00005 
00006 uLCD_4DGL uLCD(p28,p27,p30); // serial tx, serial rx, reset pin;
00007 AnalogOut DACout(p18);
00008 DigitalOut myled(LED1);
00009 PwmOut RGBLED_r(p23);
00010 PwmOut RGBLED_g(p24);
00011 PwmOut RGBLED_b(p25);
00012 
00013 float note[18]= {1568.0,1396.9,1244.5,1244.5,1396.9,1568.0,1568.0,1568.0,1396.9,
00014                  1244.5,1396.9,1568.0,1396.9,1244.5,1174.7,1244.5,1244.5, 0.0
00015                 };
00016 float duration[18]= {0.48,0.24,0.72,0.48,0.24,0.48,0.24,0.24,0.24,
00017                      0.24,0.24,0.24,0.24,0.48,0.24,0.48,0.48, 0.0
00018                     };
00019 
00020 // mutex to make the lcd lib thread safe
00021 Mutex lcd_mutex;
00022 
00023 // global variables
00024 int i = 0;
00025 int ix = 0;
00026 
00027 void drawairplane(int x, int y) {
00028     uLCD.filled_rectangle(x, y+7, x+27, y+13, WHITE);
00029     uLCD.filled_rectangle(x, y, x+4, y+6, BLUE);
00030     uLCD.filled_rectangle(x, y+14, x+4, y+20, BLUE);
00031     uLCD.filled_rectangle(x+16, y-6, x+20, y+6, BLUE);
00032     uLCD.filled_rectangle(x+16, y+14, x+20, y+26, BLUE);
00033     uLCD.filled_rectangle(x+20, y+9, x+27, y+11, BLUE);
00034     uLCD.filled_rectangle(x+15, y+9, x+17, y+11, BLUE);
00035     uLCD.filled_rectangle(x+10, y+9, x+12, y+11, BLUE);
00036     uLCD.filled_rectangle(x+5, y+9, x+7, y+11, BLUE);
00037 }
00038 
00039 // Thread 1
00040 // RGB LED
00041 void thread1(void const *args)
00042 {
00043     while(true) {         // thread loop
00044         if (i < 10) {
00045             RGBLED_r = 0.0;
00046             RGBLED_g = (float) i / 10;
00047             RGBLED_b = 0.0;
00048         } else if (10 <= i && i < 20) {
00049             RGBLED_r = 0.0;
00050             RGBLED_g = (float) (20 - i) / 10;
00051             RGBLED_b = 0.0;
00052         } else if (20 <= i && i < 30) {
00053             RGBLED_r = (float) (i - 20) / 10;
00054             RGBLED_g = (float) (i - 20) / 10;
00055             RGBLED_b = (float) (i - 20) / 10;
00056         } else if (30 <= i && i < 40) {
00057             RGBLED_r = (float) (40 - i) / 10;
00058             RGBLED_g = (float) (40 - i) / 10;
00059             RGBLED_b = (float) (40 - i) / 10;
00060         } else {
00061             i = -1;
00062         }
00063         i++;
00064         Thread::wait(200);    // wait 0.2s
00065     }
00066 }
00067 
00068 
00069 void thread2(void const *args)
00070 {
00071     while (true) {
00072         SongPlayer mySpeaker(p21);
00073         mySpeaker.PlaySong(note,duration);
00074         Thread::wait(6000);    // wait 6s
00075     }
00076 }
00077 
00078 
00079 void thread3(void const *args)
00080 {
00081     while (true) {
00082         time_t seconds = time(NULL);
00083         lcd_mutex.lock();
00084         uLCD.filled_rectangle(0, 0, 127, 63, BLACK);
00085         char buffer[32];
00086         strftime(buffer, 32, "%I:%M:%S %p\n", localtime(&seconds));
00087         uLCD.locate(0,0);
00088         uLCD.printf(buffer);
00089         lcd_mutex.unlock();
00090         Thread::wait(1000);    // wait 1s
00091     }
00092 }
00093 
00094 void thread4(void const *args)
00095 {
00096     while (true) {
00097         lcd_mutex.lock();
00098         uLCD.filled_rectangle(0, 63, 127, 127, BLACK);
00099         drawairplane(ix, 90);
00100         lcd_mutex.unlock();
00101         ix += 1;
00102         if (ix > 100) {
00103             ix = 0;
00104         }
00105         Thread::wait(500);    // wait 0.75s
00106     }
00107 }
00108 
00109 
00110 int main() {
00111     Thread t1(thread1); //start thread1
00112     Thread t2(thread2); //start thread2
00113     Thread t3(thread3); //start thread3
00114     Thread t4(thread4); //start thread3
00115     set_time(1256729737);
00116     while(1) {
00117         myled = 1;
00118         wait(0.2);
00119         myled = 0;
00120         wait(0.2);
00121         
00122     }
00123     Thread::wait(200);    // wait 0.2s
00124 }