const int potPin1 = A0; 
const int potPin2 = A1;  
const int potPin3 = A2;  
const int potPin4 = A3;  

const int ledPin1 = 9;   
const int ledPin2 = 10;  

int potValue1 = 0;      
int potValue2 = 0;       
int potValue3 = 0;       
int potValue4 = 0;     

int ledBrightness1 = 0;  
int blinkInterval1 = 0; 
int ledBrightness2 = 0;  
int blinkInterval2 = 0; 

unsigned long previousMillis1 = 0;  
unsigned long previousMillis2 = 0;  

bool ledState1 = LOW;  
bool ledState2 = LOW;  

void setup() {
  pinMode(ledPin1, OUTPUT);  
  pinMode(ledPin2, OUTPUT); 
  Serial.begin(9600);        
}

void loop() {
  // Read potentiometer values
  potValue1 = analogRead(potPin1);  
  potValue2 = analogRead(potPin2); 
  potValue3 = analogRead(potPin3);  
  potValue4 = analogRead(potPin4);  

 
  ledBrightness1 = exponentialMap(potValue2, 0, 1023, 0, 255); 
  blinkInterval1 = map(potValue1, 0, 1023, 100, 2000);  
  ledBrightness2 = exponentialMap(potValue4, 0, 1023, 0, 255); 
  blinkInterval2 = map(potValue3, 0, 1023, 100, 2000);  

  unsigned long currentMillis = millis();  

  // Update LED 1
  if (currentMillis - previousMillis1 >= blinkInterval1) {
    previousMillis1 = currentMillis;  

    // Toggle the LED 1 state
    ledState1 = !ledState1;
    if (ledState1) {
      analogWrite(ledPin1, ledBrightness1);  // Set the LED 1 brightness
    } else {
      analogWrite(ledPin1, 0);  // Turn off LED 1
    }
  }

  // Update LED 2
  if (currentMillis - previousMillis2 >= blinkInterval2) {
    previousMillis2 = currentMillis;  // Save the last time LED 2 was updated

    // Toggle the LED 2 state
    ledState2 = !ledState2;
    if (ledState2) {
      analogWrite(ledPin2, ledBrightness2);  // Set the LED 2 brightness
    } else {
      analogWrite(ledPin2, 0);  // Turn off LED 2
    }
  }

  // Print values for debugging
  Serial.print("Pot1 Value (Interval LED 1): ");
  Serial.print(potValue1);
  Serial.print("\tBlink Interval LED 1: ");
  Serial.print(blinkInterval1);
  Serial.print("\tPot2 Value (Brightness LED 1): ");
  Serial.print(potValue2);
  Serial.print("\tBrightness LED 1: ");
  Serial.println(ledBrightness1);
  Serial.print("Pot3 Value (Interval LED 2): ");
  Serial.print(potValue3);
  Serial.print("\tBlink Interval LED 2: ");
  Serial.print(blinkInterval2);
  Serial.print("\tPot4 Value (Brightness LED 2): ");
  Serial.print(potValue4);
  Serial.print("\tBrightness LED 2: ");
  Serial.println(ledBrightness2);
}

// Exponential mapping function for finer control over LED brightness
int exponentialMap(int val, int inMin, int inMax, int outMin, int outMax) {
  float normalized = (float)(val - inMin) / (inMax - inMin);
  float exponent = pow(normalized, 3);  // Adjust the exponent value (e.g., 2, 3, 4) to change the curve
  return (int)(exponent * (outMax - outMin) + outMin);
}