ESP32 Heartbeat Module Project

Project Overview

This project showcases how to utilize a heartbeat sensor with an ESP32 microcontroller to detect the presence of a heartbeat. Heartbeat sensors are crucial for medical and health-related applications, providing real-time detection of heartbeats without physical contact.

Components Needed

• ESP32 Microcontroller
• Heartbeat Sensor Module (Digital Output)
• Jumper Wires
• Breadboard

Block Diagram

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Circuit Setup

1. Connecting the Heartbeat Sensor to ESP32:
   • Connect the digital output of the heartbeat sensor module to GPIO pin 34 on the ESP32.
   • Ensure proper power and ground connections for the heartbeat sensor module.

Instructions

1. Setup:

   • Initialize serial communication at 9600 baud rate in the setup() function using Serial.begin().
   • Configure GPIO pin 34 as an input using pinMode() to read the digital output from the heartbeat sensor.

2. Operation:

   • In the loop() function:
     • Read the digital sensor value using digitalRead().
     • If a heartbeat is detected (HIGH state), print "Heartbeat detected!" to the Serial Monitor.
     • If no heartbeat is detected (LOW state), print "No heartbeat detected." to the Serial Monitor.

3. Considerations:

   • Sensor Sensitivity: Adjust sensor placement and sensitivity to ensure reliable detection of heartbeats.
   • Environmental Factors: Minimize environmental noise and interference for accurate heartbeat readings.

Applications

• Health Monitoring: Monitor and track heartbeat for medical purposes or fitness monitoring.
• Alarm Systems: Integrate with alarm systems for detecting cardiac arrest or irregular heartbeats.
• Biofeedback Devices: Use in biofeedback devices for real-time physiological data analysis.

Notes

• Real-Time Monitoring: Heartbeat sensors provide immediate feedback on the presence of heartbeats, aiding in timely interventions.
• Serial Output: Monitor and analyze heartbeat data through the ESP32's Serial Monitor for debugging and analysis purposes.

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