Remote monitoring of heart rate and ECG signal using ESP32

Heart conditions of human body can be detected by the electrical signal from heart which is called electrocardiogram (ECG) and heart rate which is the number of heart beat per minute (BPM). ECG is the result of electric signal of heart that is caused of the heart to beat. The result is shown as a wave on a monitor or graph paper. Heart disease has become a very big issue nowadays. Many people get sick or even die because of the inability to monitor their heart conditions properly. This serious issue can be prevented by monitoring the heart’s condition regularly. It would be great if this monitoring can be done remotely. In this paper, such a system is proposed by using AD8232 single lead heart beat sensor to extract the ECG signal and pulse sensor to get the BPM. The obtained sensor data are transmitted to the cloud server internet using ESP32 microcontroller which has Wi-Fi capability for remote monitoring by a health specialist. Ubidots and Thingspeak platforms are used as a cloud server. As a result, any health specialist can check the patient’s heart condition at anytime from anywhere and can take necessary steps.