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#define Resistor_PlusSide 47  // Value in k Ohm
#define Resistor_MinusSide 27 // Value in k Ohm

const int analogInPin = A3;  // Analog input pin

int sensorValue = 0;        // value read from the pot
float Voltage = 0.0;
int currentsensorValue = 0;        
float currentVoltage = 0.0;
float averager[50];
float vdifider = float(Resistor_PlusSide) / float(Resistor_MinusSide);
float vScale = 5.0/1024.0;

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600);  
}

void loop() {

  
  // read the analog in value:
  currentsensorValue = analogRead(analogInPin);            
  // map it to the range of the analog out:
  currentVoltage = float(currentsensorValue)*vScale*(1+vdifider);  
  
  for(int i = 0; i <= 49; i++){
    averager[i] = averager[i+1];
  }
  averager[50] = currentVoltage;
         
  Voltage = 0.0;    
 
  for(int i = 0; i <= 50; i++){
    Voltage = Voltage + averager[i];
  }
  
Voltage = Voltage/50;
         
  // print the results to the serial monitor:
  Serial.print("sensor = " );                       
  Serial.print(currentsensorValue);      
  Serial.print("\t output = ");      
  Serial.println(Voltage);   
  // wait 10 milliseconds before the next loop
  // for the analog-to-digital converter to settle
  // after the last reading:
  delay(10);                     
}

Code: Alles auswählen

//for V BAT monitoring
//after the resistor divisor we should get [0V;5V]->[0;[1023] on analog V_BATPIN
//the code is implemented but not yet adjusted to empirical V levels
//resistors used 47k and  27k
#define VBATLEVEL1_3S 780 // 10.5V
#define VBATLEVEL2_3S 755 // 10.1V
#define VBATLEVEL3_3S 735 // 9.8V