Diff: main.cpp

Revision:

0:f531454e4dce

Child:

1:60087ee45d3b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Oct 10 19:32:51 2022 +0000
@@ -0,0 +1,121 @@
+#include "uLCD_4DGL.h"
+#include "mbed.h"
+#include "rtos.h"
+#include "SongPlayer.h"
+
+uLCD_4DGL uLCD(p28,p27,p30); // serial tx, serial rx, reset pin;
+AnalogOut DACout(p18);
+DigitalOut myled(LED1);
+PwmOut RGBLED_r(p23);
+PwmOut RGBLED_g(p24);
+PwmOut RGBLED_b(p25);
+
+float note[18]= {1568.0,1396.9,1244.5,1244.5,1396.9,1568.0,1568.0,1568.0,1396.9,
+                 1244.5,1396.9,1568.0,1396.9,1244.5,1174.7,1244.5,1244.5, 0.0
+                };
+float duration[18]= {0.48,0.24,0.72,0.48,0.24,0.48,0.24,0.24,0.24,
+                     0.24,0.24,0.24,0.24,0.48,0.24,0.48,0.48, 0.0
+                    };
+
+// mutex to make the lcd lib thread safe
+Mutex lcd_mutex;
+
+// global variables
+int i = 0;
+int ix = 0;
+
+void drawairplane(int x, int y) {
+    uLCD.filled_rectangle(x, y+7, x+27, y+13, WHITE);
+    uLCD.filled_rectangle(x, y, x+4, y+6, BLUE);
+    uLCD.filled_rectangle(x, y+14, x+4, y+20, BLUE);
+    uLCD.filled_rectangle(x+16, y-6, x+20, y+6, BLUE);
+    uLCD.filled_rectangle(x+16, y+14, x+20, y+26, BLUE);
+    uLCD.filled_rectangle(x+20, y+9, x+27, y+11, BLUE);
+    uLCD.filled_rectangle(x+15, y+9, x+17, y+11, BLUE);
+    uLCD.filled_rectangle(x+10, y+9, x+12, y+11, BLUE);
+    uLCD.filled_rectangle(x+5, y+9, x+7, y+11, BLUE);
+}
+
+// Thread 1
+// RGB LED
+void thread1(void const *args)
+{
+    while(true) {         // thread loop
+        if (i < 10) {
+            RGBLED_r = 0.0;
+            RGBLED_g = (float) i / 10;
+            RGBLED_b = 0.0;
+        } else if (10 <= i && i < 20) {
+            RGBLED_r = 0.0;
+            RGBLED_g = (float) (20 - i) / 10;
+            RGBLED_b = 0.0;
+        } else if (20 <= i && i < 30) {
+            RGBLED_r = (float) (i - 20) / 10;
+            RGBLED_g = (float) (i - 20) / 10;
+            RGBLED_b = (float) (i - 20) / 10;
+        } else if (30 <= i && i < 40) {
+            RGBLED_r = (float) (40 - i) / 10;
+            RGBLED_g = (float) (40 - i) / 10;
+            RGBLED_b = (float) (40 - i) / 10;
+        } else {
+            i = -1;
+        }
+        i++;
+        Thread::wait(200);    // wait 0.2s
+    }
+}
+
+
+void thread2(void const *args)
+{
+    SongPlayer mySpeaker(p21);
+    mySpeaker.PlaySong(note,duration);
+    Thread::wait(2000);    // wait 0.01s
+}
+
+
+void thread3(void const *args)
+{
+    while (true) {
+        time_t seconds = time(NULL);
+        lcd_mutex.lock();
+        uLCD.filled_rectangle(0, 0, 127, 63, BLACK);
+        char buffer[32];
+        strftime(buffer, 32, "%I:%M:%S %p\n", localtime(&seconds));
+        uLCD.locate(0,0);
+        uLCD.printf(buffer);
+        lcd_mutex.unlock();
+        Thread::wait(1000);    // wait 1s
+    }
+}
+
+void thread4(void const *args)
+{
+    while (true) {
+        lcd_mutex.lock();
+        uLCD.filled_rectangle(0, 63, 127, 127, BLACK);
+        drawairplane(ix, 90);
+        lcd_mutex.unlock();
+        ix += 1;
+        if (ix > 100) {
+            ix = 0;
+        }
+        Thread::wait(500);    // wait 0.75s
+    }
+}
+
+
+int main() {
+    Thread t1(thread1); //start thread1
+    Thread t2(thread2); //start thread2
+    Thread t3(thread3); //start thread3
+    Thread t4(thread4); //start thread3
+    set_time(1256729737);
+    while(1) {
+        myled = 1;
+        wait(0.2);
+        myled = 0;
+        wait(0.2);
+    }
+    Thread::wait(200);    // wait 0.2s
+}