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lewisxhe / AXP202X_Library

Arduino & ESP-IDF libraries written for AXP19x, 20x
MIT License
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setChargeControlCur() and getBattPercentage() not working? #27

Closed jangrewe closed 4 years ago

jangrewe commented 4 years ago

Hi, thanks for fixing enableChargeing(), this seems to be fine now!

When implementing this, i discovered that e.g. axp.setChargeControlCur(300) results in axp.getSettingChargeCurrent() returning 1000, and it always returns 1000 no matter what value you provide to setChargeControlCur().

And i also noticed that getBattPercentage() always returns -4 - i wouldn't know if this is correct, and if so, how to get a percentage from that?

It would be great if you could have a look at those two. :-)

lewisxhe commented 4 years ago

When 192 is used, its optional parameters become these, and the percentage cannot be obtained from the register. 192 does not support obtaining the percentage. You can get the battery voltage and calculate the percentage, although this is not accurate https://github.com/lewisxhe/AXP202X_Library/blob/0833e114dcabc88d0905f39eca3464c6094046dd/src/axp20x.h#L555

jangrewe commented 4 years ago

Okay, thanks for the info about the percentage. But setting the charge current seems to work, just not setting the right current according to the value?

lewisxhe commented 4 years ago

Yes, for 192, it cannot directly set the current value, but needs to use the provided parameters to set