nravanelli

Most recent activity

• Academic Research using the Bangle.js 2

  in Bangle.js • 4 months, 1 week

  

  @HeatherShaw - Yep, we have developed an entire platform around the BangleJS2 and various sensors for physiology, behaviour, etc. We just finished a 24h comparison study of the activity tracking to other wearables, and we have quite a bit of the logic already coded, with its own application for uploading data to our servers/cloud infrastructure.

  We have a long term study ongoing right now throughout the summer to monitor people.

  Let me know if you want to chat more. :)

• PPG analysis beyond HR at rest

  in Bangle.js • 1 year, 3 months

  

  @user145221 Yeah, your log.csv file is probably too big.

  By 'gold standard', do you mean another PPG sensor? ECG/EKG chest straps are the ideal reference and would be your gold standard here. Another PPG sensor might have the same issues (i.e. movement artifacts).

• PPG sensor LED turns off automatically

  @nravanelli started

  • 3 comments
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  @nravanelli replied
• PPG sensor LED turns off automatically

  in Bangle.js • 1 year, 4 months

  

  Well that would explain it... updating to 'cutting edge' now. I wrote a callback function to 'restart' the PPG sensor (stop(),start()) after a handful of zero/NaN HR values and to only restart when accelerometer detected motion ... no point wasting battery if the watch is sitting on the table.

• PPG sensor LED turns off automatically

  in Bangle.js • 1 year, 4 months

  

  I've been playing around with the BangleJS2 and PPG heart rate monitor. I've noticed when using the Recorder App that if the PPG sensor is not reading anything, the green LEDs turn off, and will not come back on when placed on wrist.... Is there a way to continue attempting or refreshing the PPG to try and find a pulse again?