Hello Tim, Sorry for late reply, PFA of code snippet. I am not getting exactly what was going wrong..
I had tried as suggested by YTai, to use "getVoltageBuffered()", but not worked. Its getting difficult to read actual time in millisecond while the Analog values are constantly being updating. Thanks, Harshad On Fri, May 9, 2014 at 7:34 PM, Tim Frisch <[email protected]> wrote: > I think v is constantly being reset to 0 every loop so your runnable won't > ever do anything. > > Try making your 'v' a class field instead outside of the loop and then > access it from there. > > > On Saturday, May 3, 2014 2:55:07 AM UTC-5, harshad wrote: > >> hi, >> >> I am doing ECG plotting application using IOIO. Currently getting almost >> proper realtime ECG wave.PFA for plot. But unable to retrive Heart Rate in >> BPM. >> >> Thus,*I want to measure time difference between to successive analog >> peaks (2.1 V)* >> >> >> >> ** >> >> This analog input voltage is varying between 1.5 V to 2.5V >> >> my code: i am using simpleIOIO app as reference >> >> *1) to get voltage from analog input pin 40,* >> >> public void loop() throws ConnectionLostException, InterruptedException { >> >> // TODO Auto-generated method stub >> >> super.loop(); >> >> v = 0; >> >> try { >> >> actualTime = System.currentTimeMillis(); // reading >> system time in milliseconds >> >> newTime1 = actualTime; >> >> led_.write(!mEcgOn.isChecked()); >> >> v = inPin.getVoltage(); >> >> Thread.sleep(100); >> >> } catch (InterruptedException e) { >> >> inPin.close(); >> >> >> // // TODO Auto-generated catch block >> >> e.printStackTrace(); >> >> } >> >> *2) To compare the peak to peak voltage using an UI thread* >> >> runOnUiThread(new Runnable() { >> >> @Override >> >> public void run() >> >> if(v>2.1) >> >> { >> >> newTime2=newTime1; >> >> timeDiff1 = actualTime-newTime2; >> >> } >> >> voltsText = Long.toString(timeDiff1); >> >> voltsText1 = Long.toString(actualTime); >> >> mHRateDisplay.setText(voltsText); >> >> mTempDisplay.setText(voltsText1); >> >> } >> >> }); >> >> * Logic: i am capturing system time in millisecoonds. Then >> as voltage is available , stored this time in newTime1. Now by running new >> UI thread comparing new peak at 2.1V while storing new time2 and >> calculating time the difference.* >> >> *But its not giving any output. * >> >> *Please help..* >> >> >> *Regards,* >> >> *Harshad * >> > -- > You received this message because you are subscribed to the Google Groups > "ioio-users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/ioio-users. > For more options, visit https://groups.google.com/d/optout. > -- Thanks&Regards, *Harshad Lokhande* -- You received this message because you are subscribed to the Google Groups "ioio-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/ioio-users. For more options, visit https://groups.google.com/d/optout.
ECG.java
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