This system measures your heartbeat(BPM). We developed this system at the Technical University Of Sofia, Bulgaria.

1. Presented by:
Varsha Khandagale
Sampada Kulkarni
Himali Patil

2. Taking your pulse is as simple as holding a finger to your
neck or wrist and timing the beats with your watch.
But if you want to record the data or use it to trigger
events, you need to turn that mechanical pulsing action into
an electrical signal.
This sensor fits over a fingertip and uses the amount of
infrared light reflected by the blood circulating inside to do
just that.

3. Why Monitoring……?
More than 2 million people are at high risk of
having heart attack.
It would be helpful if there was a way for these
people to monitor their heart.
So we have a problem. That is the way our
project focuses on how we can utilize this
problem and find a solution.

4. Measurement of Heart rate
4
• Stethoscope ---
inaccurate
• Electrocardiogram –
costly
& not user friendly

5. What we have done? ? ?
5
• We , in this project are measuring the
heart beat using the IR pulse sensor and
arduino.
• The timer we have set for counting the
heart beat is 10s.
• There is a set point we can decide, after 10
s the heartbeat would be shown on the
screen.

6. Software we used ? ? ?
6
• Arduino IDE
• Processing

7. Top view of our project
7

8. Hardware implementation
8
• IR Led & Phototransistor
• LM324 Quad Op Amp, 14 pin DIP
• Resistors & Capacitors
• Connecting wires
• Breadboard

9. 9
U1
LT1013
U2
LT1013
R1
8.2K
R2
39K
R3
220K
R4
68K
R
68K
1K
R
R7
510K
C1
1µF
C2
0.1µF
C3
1µF
C4
0.1µF
D2
3E1001D
Q1
FPT100A
V1
5V
C5
220µF
To digital pin 2
SCHEMATIC DIAGRAM :

10. HOW ? ? ?
10
 The sensor itself consists of an infrared emitter and detector
mounted side-by-side and pressed closely against the skin.
 When the heart pumps, blood pressure rises sharply, and so
does the amount of infrared light from the emitter that gets
reflected back to the detector.

11. The detector passes more current when it receives more
light, which in turn causes a voltage drop to enter the
amplifier circuitry.
 This design uses two consecutive operational amplifiers
(“op-amps”) to establish a steady baseline for the signal,
emphasize the peaks, and filter out noise.
 Both op-amps are contained in a single integrated
circuit (IC or “chip”),

13. What is ‘ARDUINO’?
It’s intended for students, artists,designers,hobbyists
and anyone who tinker with technology.
It is programmed in Arduino Programming
language(APL) similar to C/C++.
Way more easy to program compared to other
microcontroller packages.
The Arduino is a microcontroller development
platform
It is the winner of “worlds best interaction award

15. Different flavours
There are many versions of Arduino board.versions differ by
size,microcontroller,etc

16. Arduino Duemilanove
http://arduino.cc/en/uploads/Main/ArduinoDuemilanove.jpg
Pin 13
LED
USB
connector
Barrel jack
Digital pins header
Reset button
ATmega328 MCU
Analog pins header
Power-ground header

17. Arduino Duemilanove/Uno Features
Microcontroller ATmega168/328
Operating Voltage 5V
Input Voltage (recommended) 7-12V
Input Voltage (limits) 6-20V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 6
DC Current per I/O Pin 40 mA
DC Current for 3.3V Pin 50 mA
Flash Memory
16 KB (ATmega168) or 32 KB (ATmega328) of which 2 KB
used by bootloader
SRAM 1 KB (ATmega168) or 2 KB (ATmega328)
EEPROM 512 bytes (ATmega168) or 1 KB (ATmega328)
Clock Speed 16 MHz

18. Board Type

19. Serial Port / COM Port

20. The Environment

21. PROGRAM

24.  Processing is a free, open source, cross-
platform programming language and
environment for people who want to create
images, animations, and interactions.
 Created in 2001 by Casey Reas and Ben Fry at
the MIT Media Lab.
 Downloads, updates, reference, forums, etc. at:
http://processing.org

25. A sketch is a file or
project you create in
Processing.
 When you first
open up a new sketch
it will be completely
blank.

26. This function runs once, at the very beginning of your sketch.
You will use setup to set up certain aspects of your sketch,
makes sense right?
Most importantly for this class you will begin Serial
communication in the setup function. The setup function
without anything in it looks like this:

27. This function is where everything happens in your sketch.
The draw loop is the portion of code that keeps repeating
while the Processing sketch is open. The draw loop looks like
this:

28. point (x, y);
background(color);
ellipse (x, y, width, height);
fill (red, green, blue, transparency);
rect(x, y, width, height);

30. One very convenient way to access Processing’s Help
Reference is to highlight a function or a word used in your
code, right click and select Find in Reference (which brings
you to the processing.org reference page):

31. 31
 In-accurate method of calculating heartbeat.
 Logic used iS very simple. Therefore, results may
vary as for a sophisticated instrument for the same
purpose

32. Future scope
• EEG, ECG and other health parameters can also
be monitored.
• Continuous monitoring and future diagnosis can
be performed via the same system
(TELEMEDICINE).
• More than a single patient at different places can
be monitored using such system.
32

33. Thank you 