Project group 3 / Mbed 2 deprecated mbed_project1

the accelerometer part

Dependencies:   MMA7660 mbed

main.cpp@0:473315f27686, 2016-02-29 (annotated)

Committer:
gegjackson
Date:
Mon Feb 29 15:08:03 2016 +0000
Revision:
0:473315f27686
Child:
1:e68be371bf77
a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
gegjackson 0:473315f27686 1 #include "mbed.h"
gegjackson 0:473315f27686 2 #include "MMA7660.h"
gegjackson 0:473315f27686 3 #include "stdio.h"
gegjackson 0:473315f27686 4 /*THIS FILE IS MADE TO RUN ON THE MBED. IT WILL TAKE ACCELEROMETER VALUES AND WRITE THEM
gegjackson 0:473315f27686 5 TO A TEXT FILE AND THE CONNECTED COMPUTER*/
gegjackson 0:473315f27686 6
gegjackson 0:473315f27686 7 DigitalOut myled(LED1);
gegjackson 0:473315f27686 8 MMA7660 MMA(p28, p27); // Accelerometer connections
gegjackson 0:473315f27686 9 float ax, ay, az; //allocations for the x, y, z values
gegjackson 0:473315f27686 10 Serial pc(USBTX,USBRX); // serial port
gegjackson 0:473315f27686 11 LocalFileSystem local("local"); // Create the local filesystem called "local"
gegjackson 0:473315f27686 12 int main()
gegjackson 0:473315f27686 13 {
gegjackson 0:473315f27686 14 float data[100]; // three data arrays, with 100 entries
gegjackson 0:473315f27686 15 float data1[100];
gegjackson 0:473315f27686 16 float data2[100];
gegjackson 0:473315f27686 17
gegjackson 0:473315f27686 18
gegjackson 0:473315f27686 19 for (int i=0; i<100; i++)
gegjackson 0:473315f27686 20 {
gegjackson 0:473315f27686 21 ax=MMA.x(); //ax is the x value from the accelerometer
gegjackson 0:473315f27686 22 data[i] = ax ; //place the value of the accelerometer into the 1st array
gegjackson 0:473315f27686 23 ay=MMA.y();
gegjackson 0:473315f27686 24 data1[i] = ay ;
gegjackson 0:473315f27686 25 az=MMA.z();
gegjackson 0:473315f27686 26 data2[i] = az;
gegjackson 0:473315f27686 27 }
gegjackson 0:473315f27686 28
gegjackson 0:473315f27686 29 myled = 1;//flash an led to display the program has stopped taking readings
gegjackson 0:473315f27686 30 wait(0.2);
gegjackson 0:473315f27686 31 myled = 0;
gegjackson 0:473315f27686 32 wait(0.2);
gegjackson 0:473315f27686 33
gegjackson 0:473315f27686 34 FILE *fp = fopen("/local/accvalues.txt", "w"); // Open "accvalues.txt"
gegjackson 0:473315f27686 35 for (int i=0; i<100; i++)
gegjackson 0:473315f27686 36 {
gegjackson 0:473315f27686 37 fprintf(fp,"%f %f %f\n",data[i], data1[i], data2[i]); //print the data values to the file
gegjackson 0:473315f27686 38 }
gegjackson 0:473315f27686 39 fclose(fp); //save and close the file
gegjackson 0:473315f27686 40
gegjackson 0:473315f27686 41 pc.printf("these are the accelerometer values: \n");
gegjackson 0:473315f27686 42 for (int i=0; i<100; i++)
gegjackson 0:473315f27686 43 {
gegjackson 0:473315f27686 44 pc.printf("%f %f %f\n",data[i], data1[i], data2[i]); //print the values to the pc via putty
gegjackson 0:473315f27686 45 }
gegjackson 0:473315f27686 46 }
gegjackson 0:473315f27686 47
gegjackson 0:473315f27686 48
gegjackson 0:473315f27686 49