#include <ESP8266WiFi.h>
#include <FirebaseESP8266.h>
const char *ssid = "iiiiii";
const char *password = "iiiii";
#define FIREBASE_HOST "your-firebase-project-id.firebaseio.com"
#define FIREBASE_AUTH "token"
#define RELAY_PIN D5
FirebaseData firebaseData;
void setup() {...