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ATMEGA_HALL_CONTINU/ATMEGA_HALL_CONTINU.ino

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+//Measuring Current Using ACS712
+
+const int analogIn = A0; //Connect current sensor with A0 of Arduino
+int mVperAmp = 185; // use 100 for 20A Module and 66 for 30A Module
+int RawValue= 0;
+int ACSoffset = 2500; 
+double Voltage = 0; //voltage measuring
+double Amps = 0;// Current measuring
+
+void setup() {
+  //baud rate
+  Serial.begin(9600);//baud rate at which arduino communicates with Laptop/PC
+  delay(2000);//delay for 2 sec
+}
+
+float valeurACS712( int pin )
+{
+  int valeur;
+  float moyenne = 0;
+  int nbr_lectures = 50;
+ 
+  for( int i = 0; i < nbr_lectures; i++ )
+  {
+      valeur = analogRead( pin );
+      moyenne = moyenne + float(valeur);
+      delay(10);
+  }
+  moyenne = moyenne / float(nbr_lectures);
+  return moyenne -235;
+}
+
+void loop() //method to run the source code repeatedly
+{
+ 
+ RawValue = valeurACS712(analogIn);//reading the value from the analog pin
+ Voltage = (RawValue / 1024.0) * 5000; // Gets you mV
+ Amps = ((Voltage - ACSoffset) / mVperAmp);
+ 
+//Prints on the serial port
+ Serial.print("Raw Value = " ); // prints on the serial monitor
+ Serial.print(RawValue); //prints the results on the serial monitor
+ 
+
+ Serial.print("\t mV = "); // shows the voltage measured 
+ Serial.print(Voltage,3); // the '3' after voltage allows you to display 3 digits after decimal point
+ 
+ Serial.print("\t Amps = "); // shows the voltage measured 
+ Serial.println(Amps,3);// the '3' after voltage allows you to display 3 digits after decimal point
+ 
+ delay(2500); 
+}