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 *
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