Would like to share my thoughts and get feedback on an idea I have for a possible shield for spark core.
Charging a battery for the most part has similar limit characteristics as Maximum Voltage and Maximum Current applied to a battery regardless of the type of battery. The frequency is controlled by the charging circuit but, a lot of battery chargers do not provide any more user interface other than a “Red” and “Green” light.
I want to design (or try) to build a Spark Core Shield that will sense both voltate and current being applied to a battery with the option of multiple monitoring points for multiple batteries charged in series such as LiPo batteries for added safety and battery condition monitoring.
I would suggest this Charger Monitoring shield should have three connectors.
CN1 - Red Wire = Voltage +
CN2 - Black Wire = Voltage -
CN3 - Yellow Wire = In Series with Red Wire to measure Current being applied to battery (Batteries)
? Would using a Voltage Comparator Circuit or Zener Diode Circuit or LM377 circuit (those I know about) work ? Or, what esle could I use that is more efficent to accomplish both voltage & current monitoring ?
Any help pointing me in the right direction will be very much appreciated.