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spem.ino
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//----------------------------------------------
//--- Author : Ahmet Ozlu
//--- Mail : ahmetozlu93@gmail.com
//--- Date : 26th October 2017
//----------------------------------------------
/*declaration of variables*/
int sensorValue;
int sensorValue2;
float voltage;
float voltage2;
float p1;
float p2;
float p3;
float p4;
float meanPower;
void setup() {
Serial.begin(9600);
}
void loop() {
/*FIRST MEASUREMENT*/
sensorValue = analogRead(A0); /* Voltage difference of A0 */
voltage = ((float)5/1023)*sensorValue;
sensorValue2 = analogRead(A1); /* Voltage difference of A1 */
voltage2 = ((float)5/1023)*sensorValue2;
/*5 volt = 1023 and sensorValue2 was multiplied with this fraction to get voltage value*/
p1=((voltage-voltage2)*15)*voltage2;
delay(25);
/*SECOND MEASUREMENT*/
sensorValue = analogRead(A0); /* Voltage difference of A0 */
voltage = ((float)5/1023)*sensorValue;
sensorValue2 = analogRead(A1); /* Voltage difference of A1 */
voltage2 = ((float)5/1023)*sensorValue2;
/*5 volt = 1023 and sensorValue2 was multiplied with this fraction to get voltage value*/
p2=((voltage-voltage2)*15)*voltage2;
delay(25);
/*THIRD MEASUREMENT*/
sensorValue = analogRead(A0); /* Voltage difference of A0 */
voltage = ((float)5/1023)*sensorValue;
sensorValue2 = analogRead(A1); /* Voltage difference of A1 */
voltage2 = ((float)5/1023)*sensorValue2;
/*5 volt = 1023 and sensorValue2 was multiplied with this fraction to get voltage value*/
delay(25);
/*FOURTH MEASUREMENT*/
sensorValue = analogRead(A0); /* Voltage difference of A0 */
voltage = ((float)5/1023)*sensorValue;
sensorValue2 = analogRead(A1); /* Voltage difference of A1 */
voltage2 = ((float)5/1023)*sensorValue2;
/*5 volt = 1023 and sensorValue2 was multiplied with this fraction to get voltage value*/
p4=((voltage-voltage2)*15)*voltage2;
delay(25);
/*AVERAGE MEASUREMENT*/
meanPower=(p1+p2+p3+p4)/4;
Serial.print(meanPower);/* Sent voltage value to the computer via serial communication */
Serial.println("");
}