Firebase Connecting with ESP8266

To connect an ESP8266 with Firebase using C language, you can use the Firebase Arduino library. First, install the library in your Arduino IDE. Then, you can use the following code as a starting point to establish the connection:

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

#define FIREBASE_HOST "your.firebaseio.com"
#define FIREBASE_AUTH "yourSecretKey"
#define WIFI_SSID "yourSSID"
#define WIFI_PASSWORD "yourPASSWORD"

void setup() {
  Serial.begin(9600);

  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);
}

void loop() {
  // Handle Firebase interactions in the loop as needed
}

Replace "your.firebaseio.com" with your Firebase project URL, "yourSecretKey" with your Firebase secret key, and "yourSSID" and "yourPASSWORD" with your WiFi credentials. This code will help you establish a connection between ESP8266 and Firebase using C language.