int ledpwm = 8;//pinout of the attiny44
int i = 0;//variable that will make the work cycle increase

void setup(){
 pinMode(ledpwm,OUTPUT);
  
}
void loop(){
  for(i = 0; i <= 255 ; i++){
   analogWrite(ledpwm,i); 
   analogWrite(5,255-i);
   delay(25);
  }
   for(i = 255; i>= 0 ; i--){
   analogWrite(ledpwm,i); 
   analogWrite(5,255-i);
   delay(25);
  }
  
}