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

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Thu Sep 18 2014, 03:23 PM
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ExperimenterUK
Sat Sep 13 2014, 12:34 PM
jaimin1212,Pimpalkhare Create a thread for your question
jaimin1212
Sat Sep 13 2014, 02:35 AM
i want to make self balancing robot using MPU6050 using atmega8.. please help to get data of gyro and accelerometer from this sensor through atmega8.
Thu Sep 11 2014, 09:00 AM
Sunil Pimpalkhare
Hello sir, I am trying to make Wearfin project https://www.youtube.com/watch?v=iZ6PVBvQf-g so can u help me in teaching how to built the program???
Thu Sep 11 2014, 02:21 AM
hariom panday
plz hlp me in my project
iec.naga
Tue Sep 09 2014, 01:19 AM
spi
Mon Sep 08 2014, 08:14 AM
fameem
water changing in fish tank automatically using microcontoller with timer. send idea to me
dexter_a
Sat Sep 06 2014, 11:09 AM
hello guys
Sat Sep 06 2014, 10:10 AM
munaxa
plx guide me

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desaiakshay92
Fri Sep 19 2014, 12:45 AM
Fiddu
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piku_123
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sara_seecs
Tue Sep 16 2014, 10:53 AM
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Fri Sep 12 2014, 12:45 PM
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ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Sep 17 2014, 12:59 AM
I think its important to list out the features of ...
ajay_bhargav Avatar
Posted By ajay_bhargav
Wed Sep 17 2014, 12:45 AM
you need to put a wait condition in ISR till the s...
akshar Avatar
Posted By akshar
Mon Sep 15 2014, 04:41 AM
sir,i used microcontroller 89v51rd2 in circuit. No...
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Posted By bobparihar
Mon Sep 15 2014, 02:24 AM
i am programming interrupt 0 using 8051my task is....
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Posted By ExperimenterUK
Sat Sep 13 2014, 12:23 PM
There may not be an exact equivalent .You will hav...
akshar Avatar
Posted By akshar
Sat Sep 13 2014, 03:18 AM
Sir, Good Morning,Thank you for making me a member...
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Posted By ajay_bhargav
Thu Sep 11 2014, 12:52 AM
which compiler are you using? I suggest XC8 with M...
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Posted By ajay_bhargav
Thu Sep 11 2014, 12:49 AM
I always prefer Olimex Dev boards when it comes to...
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Posted By ajay_bhargav
Thu Sep 11 2014, 12:44 AM
master will always lower down the Chip select... s...
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Posted By ajay_bhargav
Thu Sep 11 2014, 12:38 AM
Well HitechC is the compiler used inside XC8. So i...