Retrofit Clapper Light Switch

#include <Servo.h>
 
Servo servoRight;       // create an object for the righthand servo
Servo servoLeft;        // create an object for the lefthand servo
 
const int rightStart = 92;    // variable to store the start servo positions
const int leftStart = 100;
 
const int twistAngle = 55;    // The angle the servos will twist to flick the light
 
int rightOn = rightStart - twistAngle;     // The angle required for the right servo to turn the light on
int leftOn = leftStart + twistAngle;       // The angle required for the left servo to turn the light on
 
int rightOff = rightStart + twistAngle;    // The angle required for the right servo to turn the light off
int leftOff = leftStart - twistAngle;      // The angle required for the left servo to turn the light off
 
// Input pin for the microphone signal. It's only on/off, based on a threshold
int micPin = 3;            


boolean on = false;
 
void setup() 
{
    pinMode(4, OUTPUT);
    digitalWrite(4, LOW);     // GND for the microphone
 
    pinMode(2, OUTPUT);
    digitalWrite(2, HIGH);    // +5V for the microphone
 
    servoRight.attach(6);     // Right servo is pin 6 (must be a PWM pin!)
    servoLeft.attach(5);
    
    // Move servos to their start position on power up
    // Really, they should be in the start positions anyway.
    servoLeft.write(leftStart);       
    servoRight.write(rightStart);     
}
 
void loop() 
{
    // If the microphone sound level passes the threshold
    boolean val = digitalRead(micPin);       
 
    if(val == HIGH)
    { 
        if(on) // If the light is on...
        {
             Serial.println("Turning Off");
             servoOff();              // Routine/method to turn the light off
             on = false;              // Now the light is off
             delay(300);
        }
        else // If the light is off...
        {
             Serial.println("Turning On");
             servoOn();               // routine/method to turn the light on
             on = true;               // The light is now on.
             delay(300);
        }
     }
}
 
void servoOn()
{
    int rightPos = rightStart;
    int leftPos = leftStart;
 
    // Move the right servo from 'rightStart' to 'rightOn'
    // Move the left servo from 'leftStart' to 'leftOn'
    while(rightPos > rightOn) 
    {                                           
        servoRight.write(rightPos);
        servoLeft.write(leftPos); 
        rightPos--;  // rightPos is decreasing in angle 
        leftPos++;   // leftPos is increasing in angle - they're mirrored
       delay(5);
    }
 
    // Move the servos back to their original position
    while(rightPos < rightStart)  
    {
        servoRight.write(rightPos); 
        servoLeft.write(leftPos); 
        // They now go the other way - rightPos increases, leftPos decreases
        rightPos++;                
        leftPos--;
        delay(5);
    }
 
}
 
void servoOff()   // This is the exact opposite of the above servoOn() routine
{
    int rightPos = rightStart;
    int leftPos = leftStart;
 
    while(rightPos < rightOff) { servoRight.write(rightPos); servoLeft.write(leftPos); rightPos++; leftPos--; delay(5); } while(rightPos > rightStart)
    {
        servoRight.write(rightPos);
        servoLeft.write(leftPos); 
        rightPos--; 
        leftPos++;
        delay(5);
    }
}