#include <SoftwareSerial.h>

//#define rx 3
//#define tx 4
//SoftwareSerial serial(rx, tx);

int PWM_pin[] = {0,1,2};

void setup() {
  //serial.begin(9600);
  
  
}

void loop() {


int e = random(0,255);
int pin = random(0,3);
char led = (PWM_pin[pin]);
analogWrite (led, e);
//serial.println(pin);
delay(500);
analogWrite(led,0);
delay(500);


}