LEDs Lighting Effects

1/* LEDs lighting effect sketch 
2 * Created 2017 - March - 25 
3 *  By : Hesham Mohamed (LehKeda) 
4 * 
5 */
6
7/* Global variables */
8
9/*  LEDs array . For proper fading effect you
10 * should attach your LEDs to PWM digital  output 
11 * PWM output pins are (3,5,6,9,10,11) in UNO board 
12 * the array  should be terminated with 0 value ;
13*/
14int led[] = {9,10,11,0}; 
15
16int  led_array_lenth;
17int functions_array_lenth;
18
19/* LEDs lighting effect functions  */
20// get lenth of leds array
21void get_led_array_lenth(){
22  for(int i=0;  led[i];i++){
23      led_array_lenth++;
24    }
25  }
26
27// To fade in/out  each LED individually
28void fade_individual(){
29    for (int i=0;i <led_array_lenth  ; i++){
30      // Fade in from min to max in increments of 5 points:
31     for  (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
32       // sets the value  (range from 0 to 255):
33       analogWrite(led[i], fadeValue);
34       // wait  for 30 milliseconds to see the dimming effect
35       delay(30);
36    }
37
38  // fade out from max to min in increments of 5 points:
39    for (int fadeValue  = 255 ; fadeValue >= 0; fadeValue -= 5) {
40     // sets the value (range from  0 to 255):
41     analogWrite(led[i], fadeValue);
42     // wait for 30 milliseconds  to see the fading in effect
43     delay(30);
44    }
45   } 
46  }
47
48//  To fade in/out all LEDs at once .
49void fade_all(){
50 for(int i=0; i<led_array_lenth;  i++){
51      for (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
52
53     // sets the fade value for all LEDs (range from 0 to 255):
54     for(int  x=0; x<led_array_lenth; x++){
55       analogWrite(led[x], fadeValue);
56      }
57
58     // wait for 30 milliseconds to see the dimming effect
59     delay(35);
60    }
61
62  // fade out from max to min in increments of 5 points:
63    for  (int fadeValue = 255 ; fadeValue >= 0; fadeValue -= 5) {
64      
65      // sets  the fade value for all LEDs (range from 0 to 255):
66      for(int x=0; x<led_array_lenth;  x++){
67       analogWrite(led[x], fadeValue);
68      }       
69     
70      //  wait for 30 milliseconds to see the fading in effect
71      delay(35);
72   }
73  }  
74}
75
76// To randomly turn on LEDs 
77void random_individual_led(){
78    randomSeed(analogRead(0)); // To shuffle random function 
79    for(int i=0;  i<=led_array_lenth; i++){
80      /* In order to make all LEDs trun on the max  value 
81       * for random function should be as same as LEDs array lenth
82       * because random function returns MAX-1 .
83       */
84      int current_led=random(led_array_lenth);  
85
86      // 255 value makes LED on all time .
87      analogWrite(led[current_led],255);
88
89      // Delay before turn off the LED / Max time the LED will be on .
90      delay(200);
91
92      // turn off LED 
93      analogWrite(led[current_led],0);
94    }
95  }
96
97//  To randomly light group of LEDs
98 void random_led_group(){
99    randomSeed(analogRead(0));  // To shuffle random function 
100    for (int i=0; i <=led_array_lenth; i++ ){
101      // LEDs will be lit up ;
102      int current_leds[led_array_lenth]; 
103      
104      // Pointer to current_leds array , will be used to set LEDs will  be lit up ; 
105      int *ptr=current_leds; 
106      
107      // Number of LEDs  will be lit 
108      int number_of_leds= random(led_array_lenth);
109      
110      for (int x=0; x < number_of_leds; x++){
111        *ptr=led[random(led_array_lenth)];  // set LED will be lit up ;
112        
113        // 255 value makes LED on all  time .
114        analogWrite(*ptr,255);
115        
116        ++ptr; // go to  next item on current_leds array ;
117      }
118        
119      // Delay before  turn off the LED / Max time the LED will be on .
120      delay(200);
121
122      //  turn off all LEDs have been lit 
123      for (int y=0; current_leds[y]; y++){ 
124       analogWrite(current_leds[y],0);
125      }
126     }
127    }
128
129/* Array  of all LEDs lighting effect 
130 *  Add the name of function of effect 
131 *  you  want or you can remove the name 
132 *  of function of effect you don't want 
133  */
134
135void (*leds_lighting_effects_functions[])()={fade_all,fade_individual,  random_individual_led,random_led_group,0};
136  
137void get_functions_array_lenth(){
138  for(int i=0; leds_lighting_effects_functions[i];i++){
139      functions_array_lenth++;
140    }
141  }
142
143// the setup function runs once when you press reset or power  the board
144void setup() {
145  
146  // First we need to ge the lenth of LEDs  array and functions array
147  get_led_array_lenth();
148  get_functions_array_lenth();
149}
150
151//  the loop function runs over and over again forever
152void loop() {
153  randomSeed(analogRead(0));
154  // Here we call functions respective to which effects we want 
155  for (int i=0;  leds_lighting_effects_functions[i]; i++){
156    leds_lighting_effects_functions[random(functions_array_lenth)]();
157  }
158}
159
160

1/* LEDs lighting effect sketch 
2 * Created 2017 - March - 25 
3 *   By : Hesham Mohamed (LehKeda) 
4 * 
5 */
6
7/* Global variables */
8
9/*   LEDs array . For proper fading effect you
10 * should attach your LEDs to PWM digital   output 
11 * PWM output pins are (3,5,6,9,10,11) in UNO board 
12 * the array   should be terminated with 0 value ;
13*/
14int led[] = {9,10,11,0}; 
15
16int   led_array_lenth;
17int functions_array_lenth;
18
19/* LEDs lighting effect functions   */
20// get lenth of leds array
21void get_led_array_lenth(){
22  for(int i=0;   led[i];i++){
23      led_array_lenth++;
24    }
25  }
26
27// To fade in/out   each LED individually
28void fade_individual(){
29    for (int i=0;i <led_array_lenth   ; i++){
30      // Fade in from min to max in increments of 5 points:
31     for   (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
32       // sets the value   (range from 0 to 255):
33       analogWrite(led[i], fadeValue);
34       // wait   for 30 milliseconds to see the dimming effect
35       delay(30);
36    }
37
38   // fade out from max to min in increments of 5 points:
39    for (int fadeValue   = 255 ; fadeValue >= 0; fadeValue -= 5) {
40     // sets the value (range from   0 to 255):
41     analogWrite(led[i], fadeValue);
42     // wait for 30 milliseconds   to see the fading in effect
43     delay(30);
44    }
45   } 
46  }
47
48//   To fade in/out all LEDs at once .
49void fade_all(){
50 for(int i=0; i<led_array_lenth;   i++){
51      for (int fadeValue = 0 ; fadeValue <= 255; fadeValue += 5) {
52
53      // sets the fade value for all LEDs (range from 0 to 255):
54     for(int   x=0; x<led_array_lenth; x++){
55       analogWrite(led[x], fadeValue);
56      }
57
58      // wait for 30 milliseconds to see the dimming effect
59     delay(35);
60     }
61
62  // fade out from max to min in increments of 5 points:
63    for   (int fadeValue = 255 ; fadeValue >= 0; fadeValue -= 5) {
64      
65      // sets   the fade value for all LEDs (range from 0 to 255):
66      for(int x=0; x<led_array_lenth;   x++){
67       analogWrite(led[x], fadeValue);
68      }       
69     
70      //   wait for 30 milliseconds to see the fading in effect
71      delay(35);
72   }
73   }  
74}
75
76// To randomly turn on LEDs 
77void random_individual_led(){
78     randomSeed(analogRead(0)); // To shuffle random function 
79    for(int i=0;   i<=led_array_lenth; i++){
80      /* In order to make all LEDs trun on the max   value 
81       * for random function should be as same as LEDs array lenth
82        * because random function returns MAX-1 .
83       */
84      int current_led=random(led_array_lenth);   
85
86      // 255 value makes LED on all time .
87      analogWrite(led[current_led],255);
88
89       // Delay before turn off the LED / Max time the LED will be on .
90      delay(200);
91
92       // turn off LED 
93      analogWrite(led[current_led],0);
94    }
95  }
96
97//   To randomly light group of LEDs
98 void random_led_group(){
99    randomSeed(analogRead(0));   // To shuffle random function 
100    for (int i=0; i <=led_array_lenth; i++ ){
101       // LEDs will be lit up ;
102      int current_leds[led_array_lenth]; 
103       
104      // Pointer to current_leds array , will be used to set LEDs will   be lit up ; 
105      int *ptr=current_leds; 
106      
107      // Number of LEDs   will be lit 
108      int number_of_leds= random(led_array_lenth);
109      
110       for (int x=0; x < number_of_leds; x++){
111        *ptr=led[random(led_array_lenth)];   // set LED will be lit up ;
112        
113        // 255 value makes LED on all   time .
114        analogWrite(*ptr,255);
115        
116        ++ptr; // go to   next item on current_leds array ;
117      }
118        
119      // Delay before   turn off the LED / Max time the LED will be on .
120      delay(200);
121
122      //   turn off all LEDs have been lit 
123      for (int y=0; current_leds[y]; y++){ 
124        analogWrite(current_leds[y],0);
125      }
126     }
127    }
128
129/* Array   of all LEDs lighting effect 
130 *  Add the name of function of effect 
131 *  you   want or you can remove the name 
132 *  of function of effect you don't want 
133   */
134
135void (*leds_lighting_effects_functions[])()={fade_all,fade_individual,   random_individual_led,random_led_group,0};
136  
137void get_functions_array_lenth(){
138   for(int i=0; leds_lighting_effects_functions[i];i++){
139      functions_array_lenth++;
140     }
141  }
142
143// the setup function runs once when you press reset or power   the board
144void setup() {
145  
146  // First we need to ge the lenth of LEDs   array and functions array
147  get_led_array_lenth();
148  get_functions_array_lenth();
149}
150
151//   the loop function runs over and over again forever
152void loop() {
153  randomSeed(analogRead(0));
154   // Here we call functions respective to which effects we want 
155  for (int i=0;   leds_lighting_effects_functions[i]; i++){
156    leds_lighting_effects_functions[random(functions_array_lenth)]();
157   }
158}
159
160