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charge rate indicator LEDs inconsistently illuminated #24

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mossmann opened this issue Jan 30, 2020 · 2 comments
Open

charge rate indicator LEDs inconsistently illuminated #24

mossmann opened this issue Jan 30, 2020 · 2 comments
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@mossmann
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The blue LEDs in #23 have a forward voltage of 3.9 V, but they are supplied by VBUS which can be as low as 3.6 V when operating on battery power. They fade out as the battery is drained (which might be a cool indicator of battery charge except that we can't count on them to be consistent across all LEDs). The LEDs should have a forward voltage less than 3.6 V.

@yhetti
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yhetti commented Feb 3, 2020

Do the charge rate indicators matter if the GF/Jasmine are unplugged and the battery is not actually charging?

@mossmann
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mossmann commented Feb 6, 2020

Alternatively we could arrange for the charge rate indicators to only light up when external power is present.

@yhetti yhetti added the hardware label Nov 4, 2021
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