Diff: main.cpp

Revision:

0:10177c8cba93

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jul 14 23:23:38 2017 +0000
@@ -0,0 +1,340 @@
+/**********************************
+ * Author: 
+ * Institution: Georgia Tech
+ *
+ * Title: MAIN
+ * Class: ECE2035
+ * Assignment: Project 2 Summer 2017
+ **********************************/
+
+//includes
+#include <string.h>
+#include <stdio.h>
+#include <math.h>
+#include <cstdarg>
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "wave_player.h"
+#include "MMA8452.h"
+
+#include "uLCD_4DGL.h"
+
+//defines
+#define YELLOW              0xFFFF00
+#define BUFFSIZE            100
+#define PI                  3.141592653589793238462643f
+#define TEST_WAVFILE        "/sd/wavfiles/BUZZER.wav"
+#define SEQ_LEN             20
+
+//function prototypes
+int invert(int value);
+void print(const char *format, ...);
+void lowerCase(char *src);
+void playSound(void);
+void pb1_hit_callback(void);
+void pb2_hit_callback(void);
+void pb3_hit_callback(void);
+void pb4_hit_callback(void);
+void createSequence(int *Sequence, int length);
+void drawFore(int position, int color);
+void drawBack(int position, int color);
+void drawNum (int i);
+
+//initialize hardware
+SDFileSystem sd(p5, p6, p7, p8, "sd"); // mosi, miso, sck, cs
+uLCD_4DGL uLCD(p9, p10, p11); // uLCD-144-G2 screen, (serial tx, serial rx, reset pin)
+AnalogOut DACout(p18);
+wave_player waver(&DACout);
+
+DigitalIn pb1(p21);
+DigitalIn pb2(p22);
+DigitalIn pb3(p23);
+DigitalIn pb4(p24);
+
+AnalogIn   randSeed(p20);
+
+Serial pc(USBTX,USBRX);     // used by Accelerometer
+MMA8452 accel(p28, p27, 100000); // Accelerometer
+
+// array for Simon sequence
+int Sequence[SEQ_LEN];
+
+//main
+int main()
+{
+    // Use internal pullups for pushbuttons
+    pb1.mode(PullUp);
+    pb2.mode(PullUp);
+    pb3.mode(PullUp);
+    pb4.mode(PullUp);
+
+    //check for wav file
+    uLCD.cls();
+    uLCD.printf("Locating WAV files...");
+    FILE *test_file;
+    //while(1) {
+    test_file=fopen(TEST_WAVFILE,"r");
+    if(test_file != NULL) 
+        uLCD.printf("Wav file sucessfully loaded");
+    else
+        uLCD.printf("Wav file not found");       
+     wait(1);
+    //}
+    //fclose(test_file);
+
+    uLCD.cls(); 
+
+    // set background colors / clear screen
+    uLCD.background_color(WHITE);
+    uLCD.cls();
+    uLCD.background_color(WHITE);
+    uLCD.textbackground_color(WHITE);
+
+    //loop
+    int val1, val2, val3, val4;
+    double x,y,z;
+
+    while(1) {
+        //have fun...
+        // pushbuttons pull low when pressed, so invert them
+        val1 = invert(pb1.read());
+        val2 = invert(pb2.read());
+        val3 = invert(pb3.read());
+        val4 = invert(pb4.read());
+        
+        accel.readXYZGravity(&x,&y,&z);
+        //pc.printf("read gravity: x=%lf, y=%lf, z=%lf\n", x, y, z);        
+        
+        wait(1);
+        
+        if(val1|| x>=0.3) { //left = 1
+            pb1_hit_callback();
+        }
+        if(val2 || x<=-0.3){ //right = 2
+            pb2_hit_callback();
+        }
+        if(val3|| y<=-0.3){ //up = 3
+            pb3_hit_callback();
+        }
+        if(val4 || y>=0.3){ // down = 4
+            pb4_hit_callback();
+        }
+        
+        // draw some colors
+        drawFore(0, RED); 
+        wait(0.2);
+        drawBack(0, WHITE); 
+        drawFore(1, GREEN); 
+        wait(0.2);   
+        drawBack(1, WHITE);
+        drawFore(2, YELLOW);
+        wait(0.2);
+        drawBack(2, WHITE);
+        drawFore(3, BLUE);
+        wait(0.2);
+        drawBack(3, WHITE); 
+
+    }
+    //end loop
+}
+
+
+//create a sequence and store in Sequence[]
+void createSequence(int *Sequence, int length)
+{
+    srand((int ) (randSeed * 50000)); // seed the pseudo-random number generator with electrical noise from a pin
+    for(int i=0; i<length; i++) {
+        Sequence[i] = rand() % 4;
+    }
+}
+
+//fcn to play a wav
+void playSound(char * wav)
+{
+    //open wav file
+    FILE *wave_file;
+    wave_file=fopen(wav,"r");
+
+    //play wav file
+    waver.play(wave_file);
+
+    //close wav file
+    fclose(wave_file);
+}
+
+//fcn to print to console
+void print(const char *format, ...)
+{
+    //temp variables
+    char buffer[BUFFSIZE];
+    char temp[BUFFSIZE-6];
+
+    //construct message part 1
+    sprintf(buffer, "print-");
+
+    //construct message part 2
+    va_list arguments;
+    va_start(arguments, format);
+    vsnprintf(temp, BUFFSIZE-7, format, arguments);
+    va_end(arguments);
+
+    //concatenate parts
+    strcat(buffer, temp);
+
+    //send message
+    pc.printf(buffer);
+}
+
+//fcn to convert string to lowercase
+void lowerCase(char *src)
+{
+    int i=0;;
+    while(src[i] != '\0') {
+        if((src[i] > 64) && (src[i] < 91)) {
+            src[i]+=32;
+        }
+        i++;
+    }
+    return;
+}
+
+//function to perform bitwise inversion
+int invert(int value)
+{
+    if (value == 0) {
+        return 1;
+    } else {
+        return 0;
+    }
+}
+
+//functions to call when a pushbutton is pressed
+void pb1_hit_callback (void)
+{
+    drawNum(1);
+}
+void pb2_hit_callback (void)
+{
+    drawNum(2);
+}
+void pb3_hit_callback (void)
+{
+    drawNum(3);
+}
+void pb4_hit_callback (void)
+{
+    drawNum(4);
+}
+
+//color the background of one of the four corners
+void drawBack(int position, int color)
+{
+    int x11, x12, x21, x22, y11, y12, y21, y22;
+    
+    switch(position) {
+        case 3:
+            x11 = 64;
+            x12 = 127;
+            x21 = 85;
+            x22 = 127;
+            y11 = 85;
+            y12 = 127;
+            y21 = 64;
+            y22 = 84;     
+            break;
+        case 2:
+            x11 = 0;
+            x12 = 63;
+            x21 = 0;
+            x22 = 42;
+            y11 = 85;
+            y12 = 127;
+            y21 = 64;
+            y22 = 84;
+            break;
+        case 1:
+            x11 = 0;
+            x12 = 63;
+            x21 = 0;
+            x22 = 42;
+            y11 = 0;
+            y12 = 42;
+            y21 = 43;
+            y22 = 63;
+            break;
+        default:
+            x11 = 64;
+            x12 = 127;
+            x21 = 85;
+            x22 = 127;
+            y11 = 0;
+            y12 = 42;
+            y21 = 43;
+            y22 = 63;     
+    }
+    
+    
+    uLCD.filled_rectangle(x11, y11, x12, y12, color);
+    uLCD.filled_rectangle(x21, y21, x22, y22, color);
+}
+
+//color the foreground of one of the four corners
+void drawFore(int position, int color)
+{
+    int x11, x12, x21, x22, y11, y12, y21, y22;
+    
+    switch(position) {
+        case 3:
+            x11 = 68;
+            x12 = 123;
+            x21 = 89;
+            x22 = 123;
+            y11 = 89;
+            y12 = 123;
+            y21 = 68;
+            y22 = 89;     
+            break;
+        case 2:
+            x11 = 4;
+            x12 = 59;
+            x21 = 4;
+            x22 = 38;
+            y11 = 89;
+            y12 = 123;
+            y21 = 68;
+            y22 = 89;
+            break;
+        case 1:
+            x11 = 4;
+            x12 = 59;
+            x21 = 4;
+            x22 = 38;
+            y11 = 4;
+            y12 = 38;
+            y21 = 39;
+            y22 = 59;
+            break;
+        default:
+            x11 = 68;
+            x12 = 123;
+            x21 = 89;
+            x22 = 123;
+            y11 = 4;
+            y12 = 38;
+            y21 = 39;
+            y22 = 59;     
+    }
+    
+    
+    uLCD.filled_rectangle(x11, y11, x12, y12, color);
+    uLCD.filled_rectangle(x21, y21, x22, y22, color);
+}
+
+//print a number in the middle of the screen
+void drawNum(int i) {    
+    uLCD.text_width(3);
+    uLCD.text_height(3);
+    uLCD.color(BLACK);
+    uLCD.locate(2,2);
+    uLCD.printf("%2D",i);
+}
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