ESP8266 NodeMCU Smart Health & Environment Monitoring System with Pulse, Temperature and Motion Sensors

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The ESP8266 NodeMCU Smart Monitoring System is an IoT-based project designed to track health and environmental parameters in real time. This system integrates a pulse sensor, DHT temperature and humidity sensor, PIR motion sensor, and an additional environmental sensor module to provide accurate monitoring and wireless data transmission via WiFi.

Built around the powerful ESP8266 NodeMCU, this project enables cloud connectivity, remote monitoring, and smart automation, making it ideal for IoT, healthcare, and smart home applications.

 Project Overview

This smart monitoring system includes:

  • ESP8266 NodeMCU WiFi module for processing and wireless communication

  • Pulse Sensor for heart rate monitoring

  • DHT11/DHT22 Sensor for temperature and humidity measurement

  • PIR Motion Sensor for human presence detection

  • Additional environmental sensor module for enhanced data collection

The system collects sensor data and transmits it to a cloud platform, mobile app, or web dashboard via WiFi.

 How the System Works

  1. The pulse sensor measures heart rate signals.

  2. The DHT sensor captures temperature and humidity readings.

  3. The PIR sensor detects human motion.

  4. The NodeMCU ESP8266 processes all sensor inputs.

  5. Data is transmitted wirelessly to an IoT dashboard or mobile application for real-time monitoring.

Code:
sensor:
  # Temperatue / Humidity
  - platform: aht10   #Also for AHT20
    temperature:
      name: "Garage Temperature2"
      unit_of_measurement: "°F"
      device_class: temperature
    humidity:
      name: "Garage Humidity2"
      device_class: humidity
    update_interval: 120s

 # Analog Light Level
  - platform: adc
    pin: A0
    name: "Garage Analog Light Level"
    unit_of_measurement: lux
    device_class: illuminance
    update_interval: 10s
    filters:
      - lambda: |-
          return (2800/x) - 2700;  #only relative - not true lux

binary_sensor:
  # RCWL-0516 Motion
  - platform: gpio
    pin: D6
    name: "Garage Motion Front"
    device_class: motion
   
  # Photoresistor module DO light level
  - platform: gpio
    pin: D7
    name: "Garage Digital Light Level"

# RGB LED
light:
  - platform: rgb
    name: "Garage Sensor LED2"
    red: output_component1
    green: output_component2
    blue: output_component3

# LED output
output:
  - platform: esp8266_pwm
    id: output_component1
    pin: D3
  - platform: esp8266_pwm
    id: output_component2
    pin: D4
  - platform: esp8266_pwm
    id: output_component3
    pin: D5

 Key Features

  • Real-time heart rate monitoring

  • Temperature and humidity tracking

  • Motion detection system

  • WiFi-enabled IoT connectivity

  • Low-power and compact design

  • Ideal for remote health monitoring projects

 Applications

  • IoT-based health monitoring system

  • Smart home automation projects

  • Patient monitoring prototype

  • Environmental monitoring system

  • Wearable and remote sensing applications

  • Engineering and IoT final-year projects

This ESP8266 NodeMCU IoT health and environment monitoring project demonstrates the integration of biomedical sensors, environmental sensing, and wireless communication in a single smart system. It is perfect for students, researchers, and IoT developers building next-generation smart monitoring solutions.

 

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