const int pwm_pin = 10;
const int pot_pin = A0;

int pot_val = 0;

void setup(){
	Serial.begin(115200);
	pinMode(pwm_pin, OUTPUT);
	pinMode(pot_pin, INPUT);

	digitalWrite(pwm_pin, LOW);
}


void loop(){
	pot_val = analogRead(pot_pin); // 0-1024
  analogWrite(pwm_pin, pot_val/4);

}