Hello,
I am trying to build a charging case to carry several devices such as a phone, tablet, laptop, etc. The charging side of this is no big deal, but i would like to add some LED indication on the external side of the case to indicate charging status. Keeping it simple I just want to show charging (Red), and complete (Green). I know i can use a current sense resistor to indicate charging easy enough, but how could i indicate when the device is fully charged?
Any help on this would be greatly appreciated.
Thanks,
Joe
I am trying to build a charging case to carry several devices such as a phone, tablet, laptop, etc. The charging side of this is no big deal, but i would like to add some LED indication on the external side of the case to indicate charging status. Keeping it simple I just want to show charging (Red), and complete (Green). I know i can use a current sense resistor to indicate charging easy enough, but how could i indicate when the device is fully charged?
Any help on this would be greatly appreciated.
Thanks,
Joe