IOT with Firebase
As we continue to learn IOT with Firebase using NodeMCU, we cover ON/OFF a LED connected to Arduino using Firebase Console.
I hope you find using Firebase with IOT to be a breeze after this tutorial. Please share your alternative problem solutions. All of the code and a transcript follows the video below.
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Transcript / Cheat Sheet

Arduino NodeMCU Code:

 
 


// Copyright 2015 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the “License”);
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an “AS IS” BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// FirebaseDemo_ESP8266 is a sample that demo the different functions
// of the FirebaseArduino API.
#include <ESP8266WiFi.h>
#include <FirebaseArduino.h>
// Set these to run example.
#define FIREBASE_HOST esri-eea51.com
#define FIREBASE_AUTH qULRQbnuz————-Q1FxHvM
#define WIFI_SSID kavin
#define WIFI_PASSWORD 123456345
void setup() {
Serial.begin(9600);
pinMode(D1, OUTPUT);
// 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);
Firebase.set(LED_STATUS, 0);
}
int n = 0;
void loop() {
// get value
n = Firebase.getInt(LED_STATUS);
// handle error
if (n==1) {
Serial.println(LED ON);
digitalWrite(D1,HIGH);
return;
delay(10);
}
else {
Serial.println(LED OFF);
digitalWrite(D1,LOW);
return;
}
}

At last we are end up with great tutorial on IOT home automation using Firebase Console, NodeMCU.
 

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