#define ldrPin 39
const int potPin = 34;
float potValue = 0;
float ldrValue = 0;
unsigned long last_time = 0;


void setup() {
 Serial.begin(115200);
 delay(1000);
}
void loop() {
 potValue = analogRead(potPin);
 potValue = ((potValue * 3.3)/4095);
 ldrValue = analogRead(ldrPin);
 ldrValue = ((ldrValue * 3.3)/4095);
 if ( millis() - last_time >= 500) {
    last_time = millis();
    Serial.print(0.00);
    Serial.print(",");
    Serial.print(3.30);
    Serial.print(",");
    Serial.print(potValue);
    Serial.print(",");
    Serial.print(ldrValue);
    Serial.print("\n");
  }
 
}