5. Uploading data to firebase using NodeMCU

Uploading data to firebase using NodeMCU

  • A

    Hello,
    I am trying to upload data to firebase but wasn't able to do it. I'm not able to understand the error.
    I wanted to update the value of NEW in firebase...
    Please refer to my code and firebase tree to solve the error.!!!

    68f72edb-2241-4e61-923d-1cd79b154718-image.png

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

// Set these to run example.
#define FIREBASE_HOST "syndinnovate-1.firebaseapp.com"
#define FIREBASE_AUTH "AIzaSyAf**********-v7hKQe4uPbfUKHc"
#define WIFI_SSID "Anudeep"
#define WIFI_PASSWORD "Anudeep123"

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

  // 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);
}

int n = 0;

void loop() {
  /*
  // set value
  Firebase.setFloat("number", 42.0);
  // handle error
  if (Firebase.failed()) {
      Serial.print("setting /number failed:");
      Serial.println(Firebase.error());  
      return;
  }
  delay(1000);*/
  
  // update value
  Firebase.setFloat("/NEW", 43.0);
  // handle error
  if (Firebase.failed()) {
      Serial.print("setting /number failed:");
      Serial.println(Firebase.error());  
      return;
  }
  delay(1000);
/*
  // get value 
  Serial.print("number: ");
  Serial.println(Firebase.getFloat("number"));
  delay(1000);

  // remove value
  Firebase.remove("number");
  delay(1000);

  // set string value
  Firebase.setString("message", "hello world");
  // handle error
  if (Firebase.failed()) {
      Serial.print("setting /message failed:");
      Serial.println(Firebase.error());  
      return;
  }
  delay(1000);
  
  // set bool value
  Firebase.setBool("truth", false);
  // handle error
  if (Firebase.failed()) {
      Serial.print("setting /truth failed:");
      Serial.println(Firebase.error());  
      return;
  }
  delay(1000);*/

  // append a new value to /logs
  String name = Firebase.pushInt("/NEW", n++);
  // handle error
  if (Firebase.failed()) {
      Serial.print("pushing /logs failed:");
      Serial.println(Firebase.error());  
      return;
  }
  Serial.print("pushed: /logs/");
  Serial.println(name);
  delay(1000);
}
    0

  • May be "FIREBASE_HOST" have some error, try in this model "<YourProjectName>.firebaseio.com"
    Look this project : ( https://github.com/jagannathBhat/barish/tree/master/nodeWithFirebase)

    1
    A
     1 Reply

  • Hi @Anudeep , Can you please share the error log details?

    If you are facing this error with the JSONBUFFER_SIZE like this

    lib\firebase-arduino-master\src\FirebaseObject.h:109:21: error: 'StaticJsonBuffer' was not declared in this scope
std::shared_ptr<StaticJsonBuffer<FIREBASE_JSONBUFFER_SIZE>> buffer_;

    this is might be using the latetst ArduinoJson lib , so downgrade Arduinojson to the version 5.13.2. It will fix the issue

    Sketch -> Include libraries -> Manage libraries

    Capture.PNG

    if the error persist please share the full error log so that we can understand it better .

    0
  • A

    Thanks, @salmanfaris, I have solved this error previously. But for me there is no error, code is getting uploaded smoothly but the data is not getting uploaded to the firebase!
    Do I have to change any settings in the firebase page? for uploading the data!!

    After uploading the code... I have the below log!!

    esptool.py v2.6
2.6
esptool.py v2.6
Serial port COM4
Connecting....
Chip is ESP8266EX
Features: WiFi
MAC: 84:f3:eb:58:b5:b7
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 366560 bytes to 260548...

Writing at 0x00000000... (6 %)
Writing at 0x00004000... (12 %)
Writing at 0x00008000... (18 %)
Writing at 0x0000c000... (25 %)
Writing at 0x00010000... (31 %)
Writing at 0x00014000... (37 %)
Writing at 0x00018000... (43 %)
Writing at 0x0001c000... (50 %)
Writing at 0x00020000... (56 %)
Writing at 0x00024000... (62 %)
Writing at 0x00028000... (68 %)
Writing at 0x0002c000... (75 %)
Writing at 0x00030000... (81 %)
Writing at 0x00034000... (87 %)
Writing at 0x00038000... (93 %)
Writing at 0x0003c000... (100 %)
Wrote 366560 bytes (260548 compressed) at 0x00000000 in 23.3 seconds (effective 126.0 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...
    0 1 Reply
  • A

    Thanks, @rafitc99. But even this didn't solve my problem!!
    I have changed the code in the below format...

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

// Set these to run example.
#define FIREBASE_HOST "syndinnovate-1.firebaseio.com"
#define FIREBASE_AUTH "AIzaS********************7hKQe4uPbfUKHc"
#define WIFI_SSID "SSID"
#define WIFI_PASSWORD "PASS"

void setup() {
  Serial.begin(9600);
  delay(1000);                
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);                                     //try to connect with wifi
  Serial.print("Connecting to ");
  Serial.print(WIFI_SSID);
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }
  Serial.println();
  Serial.print("Connected to ");
  Serial.println(WIFI_SSID);
  Serial.print("IP Address is : ");
  Serial.println(WiFi.localIP());                                            //print local IP address
  Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);                              // connect to firebase                                                               //Start reading dht sensor
}

void loop() {                                                             //Convert RainSensr data into string
  
  Firebase.pushString("/NEW", "No");   
  delay(1000);//setup path and send readings
  Firebase.pushString("/NEW", "Yes");                                //setup path and send readings
  delay(1000);//setup path and send readings
}
    0

  • @Anudeep Ok , compilation part is clear .did you getting anything on the firebase side ? Any erros ?

    0
    A
     2 Replies
  • A

    @salmanfaris Nothing, No errors!!
    Do I need to change anything in Firebase settings or something?

    0
  • A

    @salmanfaris Thanks for the support!!
    I finally resolved the error. I have taken FIREBASE_AUTH as apiKey instead of Database secrets.

    2 1 Reply

  • @Anudeep Great . Glad to know that it is solved , Keep hacking 🤖

    1
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