Heart Beat Sensor


Heart beat is sensed by using a high intensity type LED and LDR. The finger is placed between the LED and LDR. As Sensor a photo diode or a photo transistor can be used. The skin may be illuminated with visible (red) using transmitted or reflected light for detection. The very small changes in reflectivity or in transmittance caused by the varying blood content of human tissue are almost invisible... Read Compelte post

Posted by abbas1707 on Tue Mar 04 2008, 04:19 PM

Heart Beat SEnsor VB code

Information on heartbeat sensor:
http://www.8051projects.net/forum-t5948.html#post_6461

Working description:
http://www.8051projects.net/forum-t5948.html#post_6535

Now for VB stuff... once you count number of pulses you can send them to PC via serial port and they can be updated in VB software.... Read Compelte post
Posted by ajay_bhargav on Tue May 20 2008, 02:02 AM
Forum Activity
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 05:29 AM
I suggest you to try with another chip of same and...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 03:23 AM
I suggest you to try with another chip of same and...
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 03:11 AM
just now tried with Mplabx screen shotpravin_35Are...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 02:45 AM
just now tried with Mplabx screen shotpravin_35Are...
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 01:06 AM
If you uncheck program memory and EEPROM it means ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 12:34 AM
If you uncheck program memory and EEPROM it means ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 12:32 AM
HC-06 module is nothing but a serial connection ov...
pravin_35 Avatar
Posted By pravin_35
Mon Jul 28 2014, 12:30 AM
Try to change the DS1307 chip. It might have gone ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 12:28 AM
@PavanKh, Please post in a new thread.
ajay_bhargav Avatar
Posted By ajay_bhargav
Mon Jul 28 2014, 12:26 AM
Try to change the DS1307 chip. It might have gone ...

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