Sergio Moyano
/
p2_analogin23r
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Fork of
p2_analoginrty
by 
Sergio Moyano
Revision 0:00529fca1abf, committed 2015-09-29
- Comitter:
- Sersd
- Date:
- Tue Sep 29 16:53:55 2015 +0000
- Commit message:
- fr
Changed in this revision
| hello.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hello.cpp Tue Sep 29 16:53:55 2015 +0000
@@ -0,0 +1,48 @@
+// Flash an LED while a DigitalIn is true
+
+#include "mbed.h"
+
+AnalogIn ain(p15);
+Serial pc(USBTX, USBRX); // tx, rx
+
+float media=0;
+float alpha=0.99;
+float actual=0;
+float offset=0.001;
+
+int contador=0;
+
+char state =0;
+char prev_state=0;
+int timeini;
+int timefi;
+Timer timer;
+int main() {
+
+ media= ain.read();
+ timer.start();
+ while(1) {
+ actual=ain;
+ // pc.printf("actual %f \n\r",actual);
+ // pc.printf("media %f \n\r",media);
+ media=media*alpha+(1-alpha)*actual;
+ if((actual-media) > offset){
+ state=1;
+ if(prev_state==0){
+ if(contador==0){
+ timeini = timer.read_us();
+ contador++;
+ }else if(contador==1){
+ timefi = timer.read_us();
+ pc.printf("Periode %d \n\r",timefi-timeini);
+ contador=0;
+ }
+ }
+ }else if((actual-media) < offset){
+ state=0;
+
+ }
+ prev_state = state;
+ wait(0.0002);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Sep 29 16:53:55 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/ba1f97679dad \ No newline at end of file