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

Conversation

Tue Aug 19 2014, 04:51 PM
allen ndumu
please i will like to know if the problem of speed control of dc motor using keypad and l298 was if yes can i have the complete project send it to the address i really need to see it
Tue Aug 19 2014, 10:47 AM
Amit Bisht
sir i want to have some trending projects on which i could work related to ATmega 16 microcontroller
ExperimenterUK
Sat Aug 16 2014, 04:16 PM
@diligent . create a thread
Sat Aug 16 2014, 03:17 PM
diligent
in assembly langauage programming..
Sat Aug 16 2014, 03:14 PM
diligent
will anyone help me?
Thu Aug 14 2014, 10:24 PM
Amirudin Tone
i help, i need liberary IC 4047 in the proteus. thanks
ExperimenterUK
Thu Aug 14 2014, 03:59 PM
@NARAYANA are you getting an error ?
Tue Aug 12 2014, 11:47 PM
NARAYANA
i am not able to get reg please provide me registration link
Tue Aug 12 2014, 10:32 AM
saloni
sir I was needing literature survey of''ANDROID CONTROLLED SPY ROBOT USING MICROCONTROLLER"
ajay_bhargav
Mon Aug 11 2014, 12:30 PM
@nisargpatel and @NARAYANA please post questions in forum.

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Comments

samchovatiya
Thu Aug 21 2014, 02:30 PM
hasmukhjain
Wed Aug 20 2014, 06:28 AM
rablo
Tue Aug 19 2014, 10:10 AM
faizhameed
Tue Aug 12 2014, 10:39 PM
ind3siszive
Sun Aug 10 2014, 01:05 PM
snaxxx68
Sat Aug 09 2014, 11:06 AM
[email protected]
Sat Aug 09 2014, 08:58 AM
rajiabdul
Mon Aug 04 2014, 01:31 PM

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Forum Activity
gaurav7577 Avatar
Posted By gaurav7577
Fri Aug 22 2014, 01:30 AM
thnks for rply..i hav attached error pic here...pl...
ajay_bhargav Avatar
Posted By ajay_bhargav
Fri Aug 22 2014, 12:46 AM
It is clearly mention with segment name on the pin...
ajay_bhargav Avatar
Posted By ajay_bhargav
Fri Aug 22 2014, 12:42 AM
What is the error that you're getting?
samchovatiya Avatar
Posted By samchovatiya
Thu Aug 21 2014, 02:57 PM
I want to know that in my project of Simple Digita...
gaurav7577 Avatar
Posted By gaurav7577
Thu Aug 21 2014, 05:47 AM
Hi..I hav lpc 2148 dev board from nex Robotics. I ...
hasmukhjain Avatar
Posted By hasmukhjain
Thu Aug 21 2014, 01:50 AM
for that try to add a variable wch can save your p...
jayachandra Avatar
Posted By jayachandra
Wed Aug 20 2014, 08:11 AM
thanq for reply @hasmukhjain,actually my applicati...
hasmukhjain Avatar
Posted By hasmukhjain
Wed Aug 20 2014, 06:40 AM
Hi Mr jayachandra,I feel ur if statement for switc...
nisargpatel Avatar
Posted By nisargpatel
Wed Aug 20 2014, 01:29 AM
see we are measuring electrical parameters by CT, ...
jayachandra Avatar
Posted By jayachandra
Tue Aug 19 2014, 08:22 AM
HELLOim facing problem with eeprom, i wrote a prog...