- Sat Nov 13, 2010 11:17 am
#113376
Does anyone has experience in building a battery monitory for an arduino clone? I am want to be able to change a 9v battery before it is below a certain voltage. So far I have try to use 2 resistors in series and reading the voltage but it seems that the battery is discharing really fast. Anybody can guide me on how to do this? If you can point me to schematics that would be great. Thanks