Goodmorning everybody,
Recently I've purchased a powerbank for my Arduino and I need to check if the powerbank is running low on power (at runtime).
I've found a example of a 12V voltage circuit: http://www.janspace.com/b2evolution/arduino.php/2010/06/26/scooterputer
I suppose when the lights go red, the battery is dying, and need to be replaced/charged. I want to make such a thing for my 5V powerbank, but can I use the same resistors?
If not, can you show my how to calculate the resistance values for the resistors, so that I can do it right in the near future?
Thank you in advance,
Tim
