Pulse detection with HR sensor and esp32. Data recording and real time plotting (PyQt) using serial connection. Breathing is recorded manually using keyboard.
HR sensor used: https://wiki.seeedstudio.com/Grove-Ear-clip_Heart_Rate_Sensor/
Sensor is detecting heart beats. If more precise RR interval is needed, sensors like AD8232 ECG can be used and modified to the code.
HR calculated as: 60/interval on every pulse detection.
HRV is calculated using 20-second RMSSD.
Sensor based breathing detection TBD once suitable equipment found.
HR, HRV and breathing recording visualization
