Radio Back Light and Sound Indication Light for Zenith Radio

1#define LED_ON_TIME     10000ul //10000mS == 10-seconds
2
3#define  LED_OFF         0
4#define LED_ON          1
5int pinOut = 4;
6int led = 8;
7int  DogBark = 0;                                                              
8
9
10const  byte pinSensor = 2;   //whatever pin you're using...
11const byte pinLED = LED_BUILTIN;
12
13unsigned  long
14    timeLED,
15    timeNow,
16    timeIDOL,                     
17    totaltime;
18
19byte
20    stateLED;
21
22void setup()
23{
24     Serial.begin( 9600 );
25    pinMode(  pinSensor, INPUT );    //INPUT_PULLUP if device is OC
26    pinMode( 4, OUTPUT  );
27    pinMode (8, OUTPUT);      
28    pinMode(LED_BUILTIN, OUTPUT);
29
30    stateLED = LED_OFF;
31
32}//setup
33
34void loop()
35{
36    timeNow =  millis();
37     if( digitalRead( pinSensor ) == HIGH )                                    
38   {
39    digitalWrite(led, HIGH); // Eye Light on  
40   } 
41    switch( stateLED  )
42    {
43        case    LED_OFF:
44            if( digitalRead( pinSensor  ) == HIGH )                    
45            {
46            DogBark++;
47            if(  DogBark == 1 )                                                              
48            {                                                                                      
49              timeIDOL = timeNow;                                                                     
50            }                                                                                         
51            Serial.println((int)DogBark);                // Sharp instances of sound  that may trigger the dial light are filered out, only a couple of "barks" per  time IDOL seconds.
52            if( DogBark >= 100 )             // Adjust microphone  sensativity when playing music,  Suggest Setting Echo volume to 3 or 4 when tuning                                                               
53                //yes;  turn on LED and set timer
54                {
55                 DogBark = 0;                                                                 
56               digitalWrite(  pinLED, HIGH );
57                timeLED = timeNow;
58                //then  move to ON state
59                stateLED = LED_ON;
60                digitalWrite(pinOut,  HIGH);
61             }                                                                                           
62            }//if
63        break;
64
65        case    LED_ON:
66            //whenever  sensor shows high, reset LED on timer
67            if( digitalRead( pinSensor  ) == HIGH )
68                {
69                  timeLED = timeNow;
70                  totaltime  = timeNow - timeLED;
71                  digitalWrite(pinOut, HIGH);
72                }             
73
74            //when ontime has expired, turn off
75            if(  timeNow - timeLED >= LED_ON_TIME )
76            {
77                digitalWrite(  pinLED, LOW );
78                digitalWrite(pinOut, LOW);
79                stateLED  = LED_OFF;
80               
81            }//if
82  
83           break;
84                                                                                  
85    }//switch
86               digitalWrite(led, LOW); // Eye Light off  
87             if(  timeNow - timeIDOL >= LED_ON_TIME )                                                              
88            {                                                                                      
89             DogBark = 0;                                                                
90            }                         
91                                                                         
92}//loop