Revolutionizing Critical Care: CardioTrack

Hunter Treleaven
Oct 17, 2025
2 min read

Updated: Oct 19, 2025

A New Standard for Real-Time Cardiac Simulation and Education

Across North America, healthcare systems face a growing crisis — a shortage of physicians and skilled clinical staff. From rural emergency departments to urban ICUs, this gap increases patient risk, particularly during cardiac events.

CardioTrack aims to explore solutions to this challenge. Currently in development, it is a proof-of-concept system designed to demonstrate how microcontrollers and biomedical sensors can assist with real-time cardiac monitoring, timestamping interventions, and improving documentation accuracy. While the device is not medical-grade and not intended for clinical use, it represents a step toward more accessible, data-driven tools in the healthcare technology space.

How the System Works

CardioTrack integrates microcontrollers, biomedical sensors, and embedded software to showcase how real-time physiological data could be collected and displayed.

Key components include:

ESP32-S3 Wroom 1 – the main processor that manages all data input and output.
AD8232 ECG Sensor – captures electrical heart activity for rhythm analysis.
MAX30102 Pulse Sensor – measures heart rate and confirms pulse presence.
7-inch TFT Touch Display – presents ECG waveforms, BPM, and treatment recommendations.
Thermal Printer – prints event and medication logs with precise timestamps.
DS3231 Real-Time Clock – ensures every recorded action is accurately time-synced.
5V 4A Power Supply – maintains stable and reliable operation for all components.

Together, these components demonstrate the potential for low-cost, portable cardiac data systems that could one day support research, education, or preclinical development.

Smart Software for Smarter Training

The system runs on the ESP32 Wroom 1, using advanced open-source libraries to power each function.

Purpose and Potential

CardioTrack is not a clinical or diagnostic device. It uses non-medical-grade components and demo-based inputs purely for research and educational exploration. The current development phase focuses on demonstrating the technical feasibility of integrating low-cost sensors and microcontrollers into a system capable of cardiac signal recognition and real-time data display.

Future development will explore expanding rhythm recognition, improving data analytics, and ensuring alignment with regulatory standards for potential medical research applications.

Safety and Ethics

CardioTrack remains a prototype intended solely for demonstration and research purposes. It is not certified for patient care, diagnosis, or medical monitoring, and all testing is conducted using simulated or pre-recorded data. The project follows strict non-clinical development standards to ensure full ethical and safety compliance.

Why It Matters

Through the use of microcontrollers and sensors, CardioTrack represents a step toward more accessible and transparent innovation in healthcare technology. Its development demonstrates that meaningful progress in medical engineering can begin in academic and grassroots environments — driven by curiosity, purpose, and the pursuit of smarter tools for a better future in medicine.

Learn More

Edited: October 19th, 2025 | 3:16 PM CDT

As development continues, I’ll be sharing periodic updates and technical breakdowns of CardioTrack’s progress — from hardware design to data integration. Future posts will document key milestones, challenges, and lessons learned throughout the build process.

Intellectual Property Notice: The CardioTrack hardware, software, source code, wiring, and user interface are the original work of Hunter Alvin Treleaven. This project is designed for educational and research purposes only and may not be reproduced or modified for commercial use without authorization.