Tyler Weaver
For testing battery life on the harp project.
Revision 0:42b722625abf, committed 2012-11-30
- Comitter:
- tylerjw
- Date:
- Fri Nov 30 16:41:18 2012 +0000
- Commit message:
- Battery Endurance Test 1.0;
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Servo.lib Fri Nov 30 16:41:18 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/tylerjw/code/Servo/#1e75dcbded83
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Nov 30 16:41:18 2012 +0000
@@ -0,0 +1,65 @@
+#include "mbed.h"
+#include "Servo.h"
+
+DigitalOut myled(LED1);
+AnalogIn battery(p19);
+DigitalOut battery_warning(p24);
+Serial pc(USBTX, USBRX);
+LocalFileSystem local("local"); // Create the local filesystem under the name "local"
+Timer t;
+
+void warning_light_check(float);
+
+int main() {
+ pc.baud(9600);
+ const float BAT_MUL = 10.26;
+ const float BAT_LIM = 7.0;
+ float sample;
+ float voltage;
+
+ Servo left_s(p21);
+ Servo right_s(p22);
+
+ left_s.calibrate_max(0.0007);
+ left_s.calibrate_min(-0.0014);
+ right_s.calibrate(0.0009);
+
+ FILE *fp = fopen("/local/battery.csv", "w");
+ fputs("Time,Battery\r\n", fp);
+
+ t.start();
+
+ while(1) {
+ sample = battery.read();
+ voltage = sample*BAT_MUL;
+ fprintf(fp, "%f,%f\r\n", t.read(), voltage);
+ pc.printf("VBat: %4.3f, ADC: %4.3f, Vadc: %4.3f\r\n", voltage, sample, sample*3.3);
+ left_s = 1.0;
+ warning_light_check(voltage);
+
+ wait(0.5);
+
+ sample = battery.read();
+ voltage = sample*BAT_MUL;
+ fprintf(fp, "%f,%f\r\n", t.read(), voltage);
+ pc.printf("VBat: %4.3f, ADC: %4.3f, Vadc: %4.3f\r\n", voltage, sample, sample*3.3);
+ left_s = 0.0;
+ warning_light_check(voltage);
+
+ wait(0.5);
+
+ if(voltage < BAT_LIM)
+ break;
+ }
+ fclose(fp);
+ myled = 1;
+}
+
+void warning_light_check(float voltage)
+{
+ if(voltage < 6.4)
+ battery_warning = 0;
+ else
+ battery_warning = 1;
+ wait(1);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Nov 30 16:41:18 2012 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/eeb8a2a33ec9 \ No newline at end of file