Vlad Cazan
I plan on using my mbed to capture some raw acceleration data from a rocket that I plan to launch soon. What I have build is a little program that records data from an accelerometer. When you flip the switch, the program automatically starts recording all x,y, and z values to a cvs file which can later be opened in excel to produce a graph. I have also added a mobile lcd screen to output the results.
Diff: main.cpp
- Revision:
- 0:e43a1f11a90b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Nov 02 00:16:20 2010 +0000
@@ -0,0 +1,61 @@
+#include "mbed.h"
+#include "MobileLCD.h"
+
+AnalogIn x1(p18);
+AnalogIn y1(p19);
+AnalogIn z1(p20);
+DigitalOut led(LED1);
+
+DigitalIn start(p21);
+Serial pc(USBTX, USBRX); // tx, rx
+LocalFileSystem local("local"); // Create the local filesystem under the name "local"
+
+MobileLCD lcd(p5, p6, p7, p8, p9);
+
+int count=0;
+
+int main() {
+ lcd.background(0x0000FF);
+ lcd.cls();
+
+
+ lcd.printf("Waiting for start...");
+ for (int i=0; i<130; i++) {
+ lcd.pixel(i, 80 + sin((float)i / 5.0)*10, 0x000000);
+ }
+ while (1) {
+
+ pc.printf("%d",start.read());
+ if (start) {
+ remove("/local/out.csv");
+ FILE *fp = fopen("/local/out.csv", "w"); // Open "out.txt" on the local file system for writing
+ lcd.background(0x0000FF);
+ lcd.cls();
+ while (start) {
+
+ pc.printf("XValue %.4f , YValue %.4f , ZValue %.4f\n",x1.read(),y1.read(),z1.read());
+ fprintf(fp," %f , %f , %f\n",x1.read(),y1.read(),z1.read());
+
+ lcd.locate(0,3);
+ lcd.printf("X:");
+ lcd.locate(0,6);
+ lcd.printf("Y:");
+ lcd.locate(0,8);
+ lcd.printf("Z:");
+ lcd.pixel(count++, -10 +x1.read()*100, 0x000000);
+ lcd.pixel(count, 10+x1.read()*100, 0x000000);
+ lcd.pixel(count,30+x1.read()*100, 0x000000);
+ if (count == 120 ) {
+ count = 0;
+ lcd.cls();
+ }
+
+ }
+ fclose(fp);
+ }
+
+
+
+
+ }
+}
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