Heart Rate Monitor Based on Arduino Platform and Processing

1. Based on Arduino Platform
and processing
ENG. Mahmoud Salheen

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. 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.  Stethoscope ---
inaccurate
 Electrocardiogram – costly
& not user friendly

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 10s the
heartbeat would be shown on the screen.

6. Arduino IDE.
Processing.

9. Arduino nano
Pulse sensor
LM324 Quad Op Amp, 14 pin DIP
Resistors & Capacitors
2016 Lcd display
Connecting wires
Breadboard

11.  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.

12.  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”).

14.  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 2012”
sponsered by google

19.  The Arduino Serial Plotter function has been added to
the Arduino IDE, allowing user to natively graph serial
data from Arduino to computer in real time.

23.  Processing is a free, open source, crossplatform
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.  This function runs once, at the
very beginning of 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:

26.  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:

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

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

30.  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.
 In future work powerful transmitters with higher range
will be used and the flexibility to use the internet to
send the data to the receiving site will be fully
explored.