Electrocardiogram monitor in Processing 4.x app using UNO with Olimex EKG shield

[svan]

Source code for electrocardiogram monitor in Processing  4.x app using an Arduino UNO with Olimex EKG shield.  Initially designed for MacOS, but may also be run in Windows(11) or Linux(popOS): https://github.com/vsquared/ECG_UNO_Processing4