main.cpp

00001 #include "stdio.h"
00002 #include "mbed.h"
00003 #include "stdlib.h"
00004 
00005 //DigitalOut myLED(LED2);
00006 AnalogIn mic(A6);
00007 
00008 int main(void)
00009 {
00010     float values[1000];
00011     float maxvals[1000];
00012     //float absmaxval[1000];
00013     //int length1;
00014     //char crudePeakValues[500];
00015     //int peakValues[500];
00016     //int indexDifference[500];
00017     
00018  printf("hello read me\n");
00019     
00020     for (int i = 0; i < 1000; i++) {
00021         values[i] = mic.read();
00022         printf("%f \n",values[i]);
00023     }
00024     for (int i = 0; i < 1000; i++) {
00025         printf("%f \n",values[i]);
00026 //        wait_ms(200);
00027     }
00028    // printf("Hello, out of first for loop \n");
00029    // wait(5);
00030 
00031     int j = 0;
00032     for (int i = 1; i < 999; i++){
00033         printf("Hello reached second for loop \n");
00034             if (values[i] > values[i-1] && values[i] > values[i+1]){
00035                 maxvals[j] = values[i];
00036                 j++;
00037                 printf("I LOVE CAPSTONE");
00038             }
00039             else {
00040                 printf("HELLO");
00041             }
00042     }
00043 
00044     //length1 = sizeof(maxvals) / sizeof (float);
00045     //printf("%i \n", length1);
00046     
00047  /*   for (int i = 1; i < 999; i++){
00048         if (maxvals[i] > maxvals[i-1] && maxvals[i] > maxvals[i+1]{
00049             absmaxvals[i] = maxvals[i];
00050         }
00051     } 
00052 
00053 */
00054 
00055 }
00056             
00057 
00058     //for (int i = 0; i < 1000; i++) {
00059     //    printf("%f \n", values[i]);
00060     //    }
00061     
00062 
00063         
00064 //nested for loop
00065 //will find where in the first 1000 digitzed values there is a digitized value above the selected threshold
00066 //will then store the indice for that value in a new array called peakvalues
00067 /*    for (int i = 0; i < 1000; i++) {
00068         for (int t = 0; t < 500; t++) {
00069             if (values[i] > "threshold") { //amplitude for 2.9 kHz sound changes as the distance from the microphone changes
00070                 if (values[i] > values[i - 1] && values[i] > values[i + 1]) 
00071                  crudePeakValues[t] = values[i];
00072             }
00073             for (int y = 0; y < 500; y++)
00074                 if (crudePeakValues[t] > crudePeakValues[t-1] && crudePeakValues[t] > crudePeakValues[t + 1])
00075                     peakValues[y] = t;
00076         }
00077     }
00078 
00079 */