DFRobot Gravity Heart Rate Monitor Sensor

The Gravity Heart Rate Monitor Sensor is used to measure the electrical activity of the heart. This electrical activity can be charted as an ECG and output as an analog reading. An ECG signal can be extremely noisy that’s why it included an AD8232 chip on the PCB which will provide a clear signal from the PR and QT Intervals. Using the Arduino IDE "Serial Plotter" feature you are also able to view plotted ECG output on your PC!