#define led 8
#define analog A0
float interval;
unsigned long previousMillis = 0;
unsigned long currentMillis;
void setup() {
  pinMode(led, OUTPUT);
  pinMode(analog, INPUT);
  Serial.begin(9600);
}

void loop() {
  int cislo = analogRead(A0);
  analogWrite(led,cislo);
  Serial.println(map(cislo,0,1023,100,2000));

}