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Heart beat detector using arduino
The document discusses a project that measures heart rate using an infrared pulse sensor and Arduino technology, addressing the need for accessible heart monitoring due to a large population at risk of heart attacks. It outlines the hardware components, software, and design of the sensor, which detects blood flow by reflecting infrared light. Future applications for this monitoring system could include tracking additional health parameters and facilitating telemedicine for remote patient monitoring.
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Presented by Varsha Khandagale, Sampada Kulkarni, Himali Patil.
Pulse measurement uses a fingertip sensor to convert mechanical actions into electrical signals using infrared light.
Over 2 million people are at high risk of heart attacks, highlighting the necessity for effective heart monitoring solutions.
Current methods like stethoscopes are inaccurate, while electrocardiograms are costly and user-unfriendly.
This project utilizes an IR pulse sensor with Arduino to measure heartbeats for 10 seconds, displaying results on a screen.
The project uses Arduino IDE and Processing for software development.
Top view illustration of the project setup.
Utilizes components like IR LED, Phototransistor, LM324 Op Amp, and more for hardware implementation.
Detailed schematic diagram outlines various electrical components and their connections.
The IR sensor emits light and detects blood flow changes, translating it into an electrical signal.
The detected signals are processed through op-amps to establish a steady baseline and filter noise.
Arduino is a user-friendly microcontroller platform, ideal for various tech enthusiasts and projects.
Different versions of Arduino boards vary in size and microcontroller capabilities.
Detailed features and specifications of the Arduino Duemilanove include voltage and I/O pin details.
Different board types available under the Arduino umbrella.
The use of Serial and COM ports for communication with Arduino devices.
Overview of the environment used for programming with Arduino.
Processing is an open-source programming language for animations and interactions, developed at MIT.
A sketch in Processing serves as the basic file or project for creating visual outputs.
The setup function initializes settings in a Processing sketch and begins Serial communication.
The draw function executes repeatedly, performing shared operations in the Processing sketch.
Common drawing functions such as background, ellipse, and rectangle used in sketches.
Convenient way to access the Processing Help Reference by highlighting code elements.
Current method inaccuracies; simpler logic can lead to varying results compared to advanced instruments.
Potential to monitor EEG and ECG, enabling continuous health monitoring and telemedicine for multiple patients.
Thank you note to the audience.
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Heart beat detector using arduino
- 1. Presented by: Varsha Khandagale SampadaKulkarni Himali Patil
- 2. Taking your pulseis 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 than2 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 Heartrate 4 • Stethoscope --- inaccurate • Electrocardiogram – costly & not user friendly
- 5. What we havedone? ? ? 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 ofour project 7
- 8. Hardware implementation 8 • IRLed & Phototransistor • LM324 Quad Op Amp, 14 pin DIP • Resistors & Capacitors • Connecting wires • Breadboard
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- 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 passesmore 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’sintended 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 aremany 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 Barreljack Digital pins header Reset button ATmega328 MCU Analog pins header Power-ground header
- 17. Arduino Duemilanove/Uno Features MicrocontrollerATmega168/328 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
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- 19. Serial Port /COM Port
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- 24. Processing isa 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 isa file or project you create in Processing. When you first open up a new sketch it will be completely blank.
- 26. This function runsonce, 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 iswhere 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 convenientway 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 methodof 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
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