Diff: main.cpp

Revision:

0:af96f6744422

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 03 19:42:36 2015 +0000
@@ -0,0 +1,87 @@
+//Executive Decision Maker for Mbed Application Board
+#include "mbed.h"
+#include "Speaker.h"
+#include "PinDetect.h" 
+#include "C12832_lcd.h"
+#include "Arial_9.h" //font for LCD
+#include <math.h> //needed for rand()
+
+DigitalOut myLed1(LED1); //Builtin LEDs
+DigitalOut myLed2(LED2);
+DigitalOut myLed3(LED3);
+DigitalOut myLed4(LED4);
+
+PinDetect pb1(p14); //Debounce pushbutton and use interrupts
+
+Speaker mySpeaker(p26); //PWM speaker to play notes
+
+Timer t; //use a hardware timer
+
+PwmOut r (p23); //RGB LED pins
+PwmOut g (p24);
+PwmOut b (p25);
+
+C12832_LCD lcd; //On board LCD display
+
+volatile int pbStatus = 0; //pb hit flag
+
+void pb1_hit_callback (void) //pb interrupt routine - a callback after debounce
+{
+    pbStatus = 1;
+}
+void funcD( int i) //display a binary number on mbed's 4 LEDs
+{
+    myLed1 = i &0x01;
+    myLed2 = (i>>1) & 0x01;
+    myLed3 = (i>>2) & 0x01;
+    myLed4 = (i>>3) & 0x01;
+}
+int main()
+{
+    unsigned int number=0;
+    //setup debounced pushbutton using interrupts
+    pb1.mode(PullDown);
+    wait(.01);
+    pb1.attach_asserted(&pb1_hit_callback);
+    pb1.setSampleFrequency();
+    //setup LCD prompt
+    lcd.cls();
+    lcd.set_font((unsigned char*) Arial_9);
+    lcd.printf("   Ask a Question, \n\r   then push Joystick");
+    //RGB LED init
+    b = 1.0; //blue 1.0=off 
+    //use a timer to generate seed for rand (different number to start each time)
+    t.start(); //start timer
+    while(pbStatus == 0) {}; //timer counts until pb hit
+    srand(t.read_ms()); //read ms from timer
+    while(1) {
+        if(pbStatus == 1) { //pb hit?
+            pbStatus = 0; //reset pb hit flag
+            lcd.cls();
+            lcd.locate(38,10);
+            //loop though several random numbers on LEDs and make beeps on Speaker
+            for(int i=0; i<24; ++i) {
+                number = (rand() % 16);
+                mySpeaker.PlayNote(200.0 * (number + 1), 0.1, 1.0);
+                funcD(number);
+            }
+            // Update RGB led:  Red, Yellow, or Green based on number
+            // Update LCD: No, Maybe, or Yes
+            b = 1.0;
+            if (number < 5) {
+                r = 0.8;
+                g = 1.0;
+                lcd.printf("  NO");
+            } else {
+                r = 0.8;
+                g = 0.8;
+                if (number <=10) lcd.printf(" MAYBE");
+                if (number > 10) {
+                    r = 1.0;
+                    lcd.printf(" YES");
+                }
+            }
+        }
+        wait(.05);
+    }
+}