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libraries/ESP32_Firebase/examples/FirebaseDemo/FirebaseDemo.ino

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+/*
+  Make sure your Firebase project's '.read' and '.write' rules are set to 'true'. 
+  Ignoring this will prevent the MCU from communicating with the database. 
+  For more details- https://github.com/Rupakpoddar/ESP32Firebase 
+*/
+
+#include <ESP32Firebase.h>
+
+#define _SSID "ENTER HERE"          // Your WiFi SSID
+#define _PASSWORD "ENTER HERE"      // Your WiFi Password
+#define REFERENCE_URL "ENTER HERE"  // Your Firebase project reference url
+
+Firebase firebase(REFERENCE_URL);
+
+void setup() {
+  Serial.begin(115200);
+  // pinMode(LED_BUILTIN, OUTPUT);
+  // digitalWrite(LED_BUILTIN, LOW);
+  WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(1000);
+
+  // Connect to WiFi
+  Serial.println();
+  Serial.println();
+  Serial.print("Connecting to: ");
+  Serial.println(_SSID);
+  WiFi.begin(_SSID, _PASSWORD);
+
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print("-");
+  }
+
+  Serial.println("");
+  Serial.println("WiFi Connected");
+
+  // Print the IP address
+  Serial.print("IP Address: ");
+  Serial.print("http://");
+  Serial.print(WiFi.localIP());
+  Serial.println("/");
+  // digitalWrite(LED_BUILTIN, HIGH);
+
+//================================================================//
+//================================================================//
+
+  // Examples of setting String, integer and float values.
+  firebase.setString("Example/setString", "It's Working");
+  firebase.setInt("Example/setInt", 123);
+  firebase.setFloat("Example/setFloat", 45.32);
+
+  // Examples of pushing String, integer and float values.
+  firebase.pushString("push", "Hello");
+  firebase.pushInt("push", 789);
+  firebase.pushFloat("push", 89.54);
+
+  // Example of getting a String.
+  String data1 = firebase.getString("Example/setString");
+  Serial.print("Received String:\t");
+  Serial.println(data1);
+
+  // Example of getting an int.
+  int data2 = firebase.getInt("Example/setInt");
+  Serial.print("Received Int:\t\t");
+  Serial.println(data2);
+
+  // Example of getting a float.
+  float data3 = firebase.getFloat("Example/setFloat");
+  Serial.print("Received Float:\t\t");
+  Serial.println(data3);
+
+  // Example of data deletion.
+  firebase.deleteData("Example");
+}
+
+void loop() {
+  // Nothing
+}