Sensor - https://wiki.seeedstudio.com/Radar_MR60BHA1/ Library - https://github.com/limengdu/Seeed-Studio-MR60BHA1-Sensor The MR60BHA1 60GHz radar module applies FMCW detected theory to implement simultaneous personal breathing rate and heart rate detention in high accuracy, providing a fully total private and secure environment, independently from other noisy influences. It is a standard biotic radar system in consumer electronics, healthcare as well as industrial applications.