#include <Servo.h>
Servo s;
int trigpin=3;
int ecopin=2;
int space, distance;
void setup() {
  // put your setup code here, to run once:
  Serial1.begin(115200);
  Serial1.println("Hello, Raspberry Pi Pico!");
  s.attach(18);
  pinMode( trigpin, OUTPUT);
  pinMode( ecopin, INPUT);
}

void loop() {
  digitalWrite(trigpin, LOW);  
delayMicroseconds(2);  
digitalWrite(trigpin, HIGH);  
delayMicroseconds(10);  
digitalWrite(trigpin, LOW);  

space = pulseIn(ecopin, HIGH);

distance = (space*.0343)/2;  
 if(distance>200){
     s.write(180);
  }
  else{
    s.write(45);
  }
}