ESP32 Heartbeat Module Project

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

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.