PPG sensor LED turns off automatically

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Gordon

Are you on the normal 2v13 firmware? This was an issue with the latest bangles and got fixed a few weeks ago so if you try a 'cutting edge' build it should work fine and start the HRM as soon as it detects skin nearby.

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nravanelli in reply to @Gordon

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.

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