Since the ECG is many times more sensitive to EMF than the Arduino, this turns out to be a quick and easy way to make sure he’s not barking up the wrong tree.

Two of my own projects that were featured on Hackaday before I became a writer here include a biomedical sensor suite in Arduino shield form factor, and a simple ECG built around an AD623 ...

With the three-lead wearable ECG sensor in this study ... a wired configuration connected to an AD8232 controlled by an Arduino Uno. When placed on the chest, the hexagonal labyrinth design ...