Features (algorithms included, all open source):
1. Suitable for portable/wearable medical/fitness design.
2. Measure heart rate and use ECG data to calculate heart rate variability, heart age and stress.
3. Easily develop more advanced heart health index functions.
4. The demonstration can also use standard ECG lead display.
5. BLE module is used for smartphone/tablet IoT functions.
6. Due to the high degree of integration, the overall BOM cost is low.
7. Powered by one AAA battery.
Blockdiagram
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