Collect Heartrate - Githubissues

okeltw / EPBand_embedded

The embedded code that controls the hardware for the EP Band wearable device

GNU General Public License v3.0

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Collect Heartrate #2

Open okeltw opened 7 years ago

okeltw commented 7 years ago

[x] Confirm data quality\
[ ] (#5) Design algorithm
[x] Expose basic data to command line
[ ] (#1) Send data to app

okeltw commented 7 years ago

If we go the analog/ADC method, we need an algorithm to take this input and provide a pulse reading either on the app or embedded side.

okeltw commented 7 years ago

@AndrewAlbert and @okeltw confirmed the data quality using lab oscilloscope.

Data was confirmed, however signal quality is much better on fingertip.
Full 5V supply may provide a more reliable signal
Noise is pretty high

okeltw commented 7 years ago

Some changes. Using edge detection, relying on high voltages from sensor to trigger edges for an effective "measurement". No longer need A/D. @AndrewAlbert has tested and claims this works.