This document describes a smart healthcare system that uses IoT devices to remotely monitor patients' ECG signals. The system uses an ECG sensor connected to a microcontroller that transmits real-time ECG data to a server via WiFi. Doctors can access this data from anywhere to diagnose patients. The system aims to make healthcare more accessible for people in rural areas by allowing remote monitoring and diagnosis without visiting clinics. The document outlines the hardware, software, data transmission process, and how ECG data can be analyzed to diagnose various heart conditions.