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Personal health guardian

Fitronix

A compact Arduino-powered monitor for heart rate, SpO₂, pulse, and temperature — with live LCD guidance and smart alerts.

Fitronix device
Here's The Device
This device is not for medical diagnosis. Readings are approximate health measures only.
Story slides

Meet Fitronix

Swipe through what it is, how it thinks, and how to use it.

What is Fitronix?

Fitronix is a compact, user-friendly system that measures heart rate, blood oxygen (SpO₂), and temperature using reliable sensors and AI-assisted signal processing. It displays clear, real-time readings on an LCD and provides alerts and guidance for quick, at-home health checks.

How it works

The device captures raw signals from onboard sensors, applies filtering and smoothing to reduce noise, and calculates vital metrics like heart rate and SpO₂. A program coded for an Arduino microcontroller handles sampling, processing, and updates the LCD in real time.

How to use the device

  • Power On — Press the power button at the back. The LCD shows a welcome message, then intro slides.
  • Heart Rate & SpO₂ — When it says “Place Finger”, insert your finger into the right opening and hold still.
  • Pulse — When prompted, insert your finger into the left opening and stay steady.
  • Temperature — When it says “Hold the temp”, place the steel probe on your hand or surface.
  • Restart — After the thank-you screen, long-press to power off, then press again to restart.
0Sensors
0Vital metrics
0mAh battery

Components

  1. Black & Yellow Box: HR, SpO₂ & Pulse
  2. Red & Brown Box: Main Processor
  3. Blue Rectangle: LCD Display
  4. One Wire: Temperature Sensor
  5. RTC (DS3231): Accurate time even after power-off with a coin cell
  6. 10,000 mAh Power Bank: Portable supply; about one month of daily use per charge
  7. Arduino Uno Clone: Device brain
  8. Buzzer: Smart beeps
  9. MAX30100: Heart rate and SpO₂
  10. Pulse analog sensor: Pulse on LCD

Features & functions

01 Real-time heart rate & SpO₂
02 Accurate temperature (DS18B20)
03 Live clock (DS3231 RTC)
04 Smart buzzer alerts and messages
05 Portable 10,000 mAh power
06 Arduino Uno processing
07 Guided LCD interface
08 Long battery life (~1 month)
In action

Device demo

Watch Fitronix measure heart rate, SpO₂, and temperature in real time.

Creators

Device Creators

Meet the brilliant minds behind Fitronix.

Aarav Thakur

Aarav Thakur

Creator of this device
MD Rizwan

MD Rizwan

Creator of this device
Our School

School Information

Proudly presented by SCAN SBV NO.2 JANAKPURI B-BLOCK

SCAN SBV NO.2 JANAKPURI B-BLOCK

Our school encourages innovation and technological advancement in student projects.

School Leadership

School Leadership

Meet our dedicated Principal and Vice Principal.

Raj Kumar Sharma

Raj Kumar Sharma

Principal
SCAN SBV NO.2 JANAKPURI B-BLOCK
Mr. Ratan Singh

Ratan Singh

Vice Principal
SCAN SBV NO.2 JANAKPURI B-BLOCK

Download project files

Documentation and circuit diagrams.

FAQ

Fitronix reaches about 92–98% accuracy for heart rate and SpO₂ in typical use. It is still an approximate home monitor, not a medical instrument.
A 10,000 mAh power bank supports around 30 days of daily use on one charge.
Yes. It uses non-invasive optical sensors and operates at safe voltage levels.
Heart rate and SpO₂ appear in about 5–10 seconds. Temperature takes about 20 seconds.

Send feedback

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Fitronix assistant
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