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Arduino UNO Based Heart Rate Monitor with OLED Display

Image of Arduino UNO Based Heart Rate Monitor with OLED Display

Circuit Documentation

Summary of the Circuit

This circuit consists of an Arduino UNO microcontroller, a Heart Pulse Sensor, and a 0.96" OLED display. The Arduino UNO serves as the central processing unit, interfacing with the Heart Pulse Sensor to read pulse data and with the OLED display to output information. The Heart Pulse Sensor detects the heartbeat of a user, and the OLED display provides a visual output. The circuit is powered by the Arduino UNO's 5V output, which is distributed to the other components. Ground connections are shared among all components to complete the circuit.

Component List

Arduino UNO

  • Description: A microcontroller board based on the ATmega328P.
  • Pins Used:
    • IOREF
    • Reset
    • 3.3V
    • 5V
    • GND
    • Vin
    • A0 to A5
    • SCL
    • SDA
    • AREF
    • D13 to D0

Heart Pulse Sensor

  • Description: A sensor that measures the heartbeat of a user.
  • Pins Used:
    • GND
    • VCC
    • SIGNAL

0.96" OLED

  • Description: A small OLED display for visual output.
  • Pins Used:
    • GND
    • VDD
    • SCK
    • SDA

Wiring Details

Arduino UNO

  • GND connected to the common ground net.
  • 5V connected to the VCC net, providing power to the Heart Pulse Sensor and OLED display.
  • A0 connected to the SIGNAL pin of the Heart Pulse Sensor for reading pulse data.
  • A4 (SDA) connected to the SDA pin of the OLED display for I2C data communication.
  • A5 (SCL) connected to the SCK pin of the OLED display for I2C clock signal.

Heart Pulse Sensor

  • GND connected to the common ground net.
  • VCC connected to the 5V power net from the Arduino UNO.
  • SIGNAL connected to the A0 pin of the Arduino UNO for pulse signal output.

0.96" OLED

  • GND connected to the common ground net.
  • VDD connected to the 5V power net from the Arduino UNO.
  • SDA connected to the A4 (SDA) pin of the Arduino UNO for I2C data communication.
  • SCK connected to the A5 (SCL) pin of the Arduino UNO for I2C clock signal.

Documented Code

Arduino UNO Code (sketch.ino)

void setup() {
  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:

}

Note: The provided code is a template and does not contain any functional code for operating the Heart Pulse Sensor or the OLED display. The user is expected to write the necessary setup and loop code to initialize the I2C communication, read data from the Heart Pulse Sensor, and display the results on the OLED.