// LED random PWM light

 int loga[64]= { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
 11, 12, 13, 14, 16, 18, 20, 22, 25, 28, 30, 33, 36, 39,
 42, 46, 49, 53, 56, 60, 64, 68, 72, 77, 81, 86, 90, 95,
 100, 105, 110, 116, 121, 127, 132, 138, 144, 150, 156,
 163, 169, 176, 182, 189, 196, 203, 210, 218, 225, 233,
 240, 248, 255 };

int ledPin1 = 5;    // PWM output pin 1
int ledPin2 = 6;    // PWM output pin 2
int ledPin3 = 9;    // PWM output pin 3

int tmax = 600;     // MAX random delay
int tmin = 200;     // MIN delay
int lmax = 38;      // MAX random lightness
int lmin = 10;      // MIN lightness

void setup () 
{ 
  pinMode (ledPin1, OUTPUT); 
  pinMode (ledPin2, OUTPUT); 
  pinMode (ledPin3, OUTPUT); 
  randomSeed(0);    // Stard random generator
} 

void loop () { 
analogWrite (ledPin1, loga[random(lmax)+lmin]); 
delay (random (tmax)+tmin); 
analogWrite (ledPin2, loga[random(lmax)+lmin]); 
delay (random (tmax)+tmin); 
analogWrite (ledPin3, loga[random(lmax)+lmin]); 
delay (random (tmax)+tmin); 
}