Library for MAX17201 and 172015 i2c LI fuel gauges. Download ZIP and include with Arduino. Tested with ESP8266 Nodemcu.
Cleaned up the code a bit, added more comments and some useful functions.
getVoltage() - gets the lowest cell voltage in mV
getSOC() - LiIon Polymer battery as a percentage of the full capacity w/ resolution 1/256%
getTemperature() - gets the getTemperature
getCurrent() - gets the current in mA
getAvgCurrent() - gets the average current consumption
getMaxCurrent() - gets the max current since reset
getMinCurrent() - gets the min current since reset
getCapacity() - gets the current capacity of the batteries
getTTE() - time left till empty
getTTF() - time left till full
reset() - resets the chip
getBatteryStatus() - checks if the battery is present
resetMaxMinAvgCurrent() - resets the maxmin avg current register
setCurrentAvgTime(int input_value) - sets the current avg time based on input_value
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