Sergio Moyano / Mbed 2 deprecated p2_analogin23r

Important changes to repositories hosted on mbed.com

Mbed hosted mercurial repositories are deprecated and are due to be permanently deleted in July 2026.

To keep a copy of this software download the repository Zip archive or clone locally using Mercurial.

It is also possible to export all your personal repositories from the account settings page.

Dependencies:   mbed

Fork of p2_analoginrty by Sergio Moyano

hello.cpp@0:00529fca1abf, 2015-09-29 (annotated)

Committer:
Sersd
Date:
Tue Sep 29 16:53:55 2015 +0000
Revision:
0:00529fca1abf
fr

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Sersd 0:00529fca1abf 1 // Flash an LED while a DigitalIn is true
Sersd 0:00529fca1abf 2
Sersd 0:00529fca1abf 3 #include "mbed.h"
Sersd 0:00529fca1abf 4
Sersd 0:00529fca1abf 5 AnalogIn ain(p15);
Sersd 0:00529fca1abf 6 Serial pc(USBTX, USBRX); // tx, rx
Sersd 0:00529fca1abf 7
Sersd 0:00529fca1abf 8 float media=0;
Sersd 0:00529fca1abf 9 float alpha=0.99;
Sersd 0:00529fca1abf 10 float actual=0;
Sersd 0:00529fca1abf 11 float offset=0.001;
Sersd 0:00529fca1abf 12
Sersd 0:00529fca1abf 13 int contador=0;
Sersd 0:00529fca1abf 14
Sersd 0:00529fca1abf 15 char state =0;
Sersd 0:00529fca1abf 16 char prev_state=0;
Sersd 0:00529fca1abf 17 int timeini;
Sersd 0:00529fca1abf 18 int timefi;
Sersd 0:00529fca1abf 19 Timer timer;
Sersd 0:00529fca1abf 20 int main() {
Sersd 0:00529fca1abf 21
Sersd 0:00529fca1abf 22 media= ain.read();
Sersd 0:00529fca1abf 23 timer.start();
Sersd 0:00529fca1abf 24 while(1) {
Sersd 0:00529fca1abf 25 actual=ain;
Sersd 0:00529fca1abf 26 // pc.printf("actual %f \n\r",actual);
Sersd 0:00529fca1abf 27 // pc.printf("media %f \n\r",media);
Sersd 0:00529fca1abf 28 media=media*alpha+(1-alpha)*actual;
Sersd 0:00529fca1abf 29 if((actual-media) > offset){
Sersd 0:00529fca1abf 30 state=1;
Sersd 0:00529fca1abf 31 if(prev_state==0){
Sersd 0:00529fca1abf 32 if(contador==0){
Sersd 0:00529fca1abf 33 timeini = timer.read_us();
Sersd 0:00529fca1abf 34 contador++;
Sersd 0:00529fca1abf 35 }else if(contador==1){
Sersd 0:00529fca1abf 36 timefi = timer.read_us();
Sersd 0:00529fca1abf 37 pc.printf("Periode %d \n\r",timefi-timeini);
Sersd 0:00529fca1abf 38 contador=0;
Sersd 0:00529fca1abf 39 }
Sersd 0:00529fca1abf 40 }
Sersd 0:00529fca1abf 41 }else if((actual-media) < offset){
Sersd 0:00529fca1abf 42 state=0;
Sersd 0:00529fca1abf 43
Sersd 0:00529fca1abf 44 }
Sersd 0:00529fca1abf 45 prev_state = state;
Sersd 0:00529fca1abf 46 wait(0.0002);
Sersd 0:00529fca1abf 47 }
Sersd 0:00529fca1abf 48 }