#include <Servo.h>
#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>



// Set these to run example.
#define FIREBASE_HOST "xxxx.firebaseio.com" // firebase host adress
#define FIREBASE_AUTH "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" // firebase authentification code


#define WIFI_SSID "xxxxx" // wifi name
#define WIFI_PASSWORD "xxxxxxxxxxxx" / wifi password


#define SRV_PIN  D2  // servo pin connection pin on Wemos D1 mini



float servoAngle; //variable for the value we want to set servo to


Servo myservo;  // create servo object to control a servo
int pos = 0;    // variable to store the servo position

long duration, distance; // Duration used to calculate distance


void setup() {
  Serial.begin(115200);
  myservo.attach(SRV_PIN);  // attaches the servo on pin 2 to the servo object

delay(500);
  // connect to wifi.
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("connecting");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }
  Serial.println();
  Serial.print("connected: ");
  Serial.println(WiFi.localIP());

  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH); // connection to webhost
  
  }


void loop()  
{

  float meassurement = Firebase.getFloat("dist");
  Serial.println(meassurement);

  servoAngle = (106./7.) * meassurement + 37 ; //Calculate Servo Angle from targetDistance
  myservo.write(servoAngle);                  // write servoAngle to the servo
  Serial.println("Angle of motor");                            
  Serial.println(servoAngle); 
    
  delay(500);                    

  
 return;  
}