//Capture full defintion data

const int currentPin = 0;                    
const int voltagePin = 1;
float referenceVoltage = 5;//50 ohm resistor = 
float previousCurrent = 0;
float minCurrentMeasureable = 0;
unsigned long lastMicros =0;
int Voltage = 0;
float resistorOhms = 10;
unsigned long minimumCurrentmilliseconds = 0;

int preva = -9999999;
int a;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(250000);
  analogReference(DEFAULT);
  referenceVoltage = 5;
  Voltage = getVoltage(voltagePin);
  analogReference(INTERNAL);
  referenceVoltage = 1.1;
  Serial.println("Internal 1.1V reference");
  minCurrentMeasureable = currentFromVoltsAndOhms(divisionsToVoltage(1), resistorOhms);
  Serial.print("Minimum Current measureable: ");
  Serial.print(minCurrentMeasureable *1000);
  Serial.println("mA");
  Serial.println("ms\tI(mA)\tmAh");
}


void loop() {
  unsigned long start = micros();
  float voltsOnResistor = getVoltage(voltagePin);
  float current = currentFromVoltsAndOhms(voltsOnResistor, resistorOhms);
  if(abs(current-previousCurrent) > (minCurrentMeasureable*4))//where the value has changed by more than 10 divisions. 
  {//print it out.
    Serial.print(millis());
    Serial.print("\t");
    Serial.print(current*1000);
    Serial.print("\t");
    minimumCurrentmilliseconds += current / minCurrentMeasureable * (float)(micros()-lastMicros)/1000;
    Serial.println((float)minimumCurrentmilliseconds * minCurrentMeasureable/60/60);
    previousCurrent= current;
    lastMicros = micros();
  }
  delayMicroseconds(1000-(micros()-start));
}

float currentFromVoltsAndOhms(float Volts, float Ohms)
{
  return Volts/Ohms;
}

float getVoltage(int analogPin)
{
  int aval = analogRead(analogPin);
  float voltage = divisionsToVoltage(aval);
  return voltage;
}

float divisionsToVoltage(int divisions)
{
  return (float)divisions * (referenceVoltage/1024);
}