Arduino Code to display value of photoresistor
const int sensorPin = A0;
int lightAnalog;
float lightVoltage;
float TotalCurrent;
float TotalResistance;
float PR;
//float PR2;
//float TotCurr2;
void setup() {
Serial.begin(9600);
}
void loop() {
lightAnalog = analogRead(sensorPin); //valor de 0-1023
lightVoltage = ((analogRead(sensorPin)*5)/1023); //valor de 0-5V
TotalCurrent = (5-lightVoltage)/330 ;
TotalResistance = 5/TotalCurrent ;
PR = TotalResistance - 330 ; //photoresistor resistance
Serial.println("Analog Value :");
Serial.println(lightAnalog);
Serial.println("Voltage Value :");
Serial.println(lightVoltage, "V");
Serial.println("Resistance Value :");
Serial.println(PR, "ohms");
Serial.println(" ");
delay(900);
}