main.cpp

00001 /**
00002  *  MFT2015 demo : shake-shake-machine
00003  *
00004  *  @author  Toyomasa WATARAI
00005  *  @version 1.0
00006  *  @date    24-July-2015
00007  *
00008  *
00009  */
00010 
00011 #include "mbed.h"
00012 #include "PCA9622_LED8x8.h"
00013 #include "font3x5.h"
00014 #include "tone_table.h"
00015 
00016 PCA9622_LED8x8  matrix(D14, D15);
00017 AnalogIn ain(A0);
00018 PwmOut out(D4);
00019 Serial pc(USBTX, USBRX);
00020 
00021 #define DURATION_TIME (5 * 1000) // n * milisecond
00022 
00023 void draw_number(int num, int reverse=0);
00024 
00025 void draw_number(int num, int reverse)
00026 {
00027     float   image[8][8];
00028     num %= 100;
00029 
00030     for (int x=0; x<8; x++)
00031         for (int y=0; y<8; y++) {
00032             if (reverse)
00033                 image[x][y] = 0.5f;
00034             else
00035                 image[x][y] = 0.0f;
00036         }
00037 
00038     for (int i=0; i<5; i++) {
00039         for (int j=0; j<3; j++) {
00040             if (((font3x5[((num/10)*3) + j]) & (1<<(4-i))) != 0) {
00041                 if (reverse)
00042                     image[i+1][j+1] = (float)0.0f;
00043                 else
00044                     image[i+1][j+1] = (float)0.5f;
00045             } else {
00046                 if (reverse)
00047                     image[i+1][j+1] = (float)0.5f;
00048                 else
00049                     image[i+1][j+1] = (float)0.0f;
00050             }
00051         }
00052     }
00053 
00054     for (int i=0; i<5; i++) {
00055         for (int j=0; j<3; j++) {
00056             if (((font3x5[((num%10)*3) + j]) & (1<<(4-i))) != 0) {
00057                 if (reverse)
00058                     image[i+1][j+5] = (float)0.0f;
00059                 else
00060                     image[i+1][j+5] = (float)0.5f;
00061             } else {
00062                 if (reverse)
00063                     image[i+1][j+5] = (float)0.5f;
00064                 else
00065                     image[i+1][j+5] = (float)0.0f;
00066             }
00067         }
00068     }
00069 
00070     matrix.set_data( image );
00071 }
00072 
00073 
00074 void count_down(int cnt)
00075 {
00076     for(int i=cnt; i>0; i--) {
00077         draw_number(i);
00078         out.period_us(tone_table_us[1]);
00079         out.write(0.5f);
00080         wait(0.5);
00081         out.period(0);
00082         wait(0.5);
00083     }
00084     draw_number(0);
00085     out.period_us(tone_table_us[13]);
00086     out.write(0.5f);
00087 }
00088 
00089 int main()
00090 {
00091     int count = 0;
00092     float f = 0;
00093     float vv;
00094     Timer timer;
00095 
00096     timer.reset();
00097     matrix.start();
00098 
00099     count_down(3);
00100 
00101     timer.start();
00102     while(1) {
00103         if ( timer.read_ms() > 1000) {
00104             out.period(0);
00105         }
00106         vv = ain.read();
00107 
00108         if ( abs(f - vv) >= 0.015f) {
00109             count++;
00110             pc.printf("*");
00111             draw_number(count);
00112         }
00113         f = vv;
00114         wait(0.1);
00115         if ( timer.read_ms() > DURATION_TIME) {
00116             pc.printf("count = %d\n", count);
00117             draw_number(count);
00118             break;
00119         }
00120     }
00121 
00122     out.period_us(tone_table_us[13]);
00123     out.write(0.5f);
00124     wait(1);
00125     out.period(0);
00126 
00127     while(1) {
00128         draw_number(count, 0);
00129         wait(1);
00130         draw_number(count, 1);
00131         wait(1);
00132 
00133     }
00134 }