Ashwin K WhitchurchWe have posted a detailed write-up of how heartrate variability (HRV) is different from heartrate and the significance of HRV over HR. Check it out on our campaign page on Crowd Supply:
Heart-rate vs. Heart-rate Variability (HRV)
A project log for HeartyPatch: A single-lead ECG-HR patch with ESP32
HeartyPatch is a fully open-source, IoT connected, BLE enabled heart-rate variability & ECG patch with great accuracy
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