Trying connect firebase and waterflowsensor, DS18B20

Other Hardware 3rd Party Boards
1

So im making some code for this but, the serial monitor only show the result is 0 ... Did i do something wrong ?

#include <DallasTemperature.h>
#include <OneWire.h>
#define ONE_WIRE_BUS D2                          
#define SENSOR  D1   
#include <Arduino.h>
#if defined(ESP32)
  #include <WiFi.h>
#elif defined(ESP8266)
  #include <ESP8266WiFi.h>
#endif
#include <Firebase_ESP_Client.h>

//Provide the token generation process info.
#include "addons/TokenHelper.h"
//Provide the RTDB payload printing info and other helper functions.
#include "addons/RTDBHelper.h"

// Insert your network credentials
#define WIFI_SSID "Redmi"
#define WIFI_PASSWORD "12345678"

// Insert Firebase project API Key
#define API_KEY "AIzaSyCjT64d_OhuRVTLyXbdU-N7By1-jtQiPiM"

// Insert RTDB URLefine the RTDB URL */
#define DATABASE_URL "https://sensoresp-1fcec-default-rtdb.firebaseio.com/" 

//Define Firebase Data object
FirebaseData fbdo;

FirebaseAuth auth;
FirebaseConfig config;

//unsigned long sendDataPrevMillis = 0;
//int count = 0;
bool signupOK = false;

void setup(){
  pinMode(SENSOR, INPUT_PULLUP);
  Serial.begin(115200);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.print("Connecting to Wi-Fi");
  while (WiFi.status() != WL_CONNECTED){
    Serial.print(".");
    delay(300);
  }
  Serial.println();
  Serial.print("Connected with IP: ");
  Serial.println(WiFi.localIP());
  Serial.println();

  /* Assign the api key (required) */
  config.api_key = API_KEY;

  /* Assign the RTDB URL (required) */
  config.database_url = DATABASE_URL;

  /* Sign up */
  if (Firebase.signUp(&config, &auth, "", "")){
    Serial.println("ok");
    signupOK = true;
  }
  else{
    Serial.printf("%s\n", config.signer.signupError.message.c_str());
  }

  /* Assign the callback function for the long running token generation task */
  config.token_status_callback = tokenStatusCallback; //see addons/TokenHelper.h
  
  Firebase.begin(&config, &auth);
  Firebase.reconnectWiFi(true);
}

void loop(){
 long            currentMillis       = 0     ;
long            previousMillis      = 0     ;
int             interval            = 1000  ;
boolean         ledState            = LOW   ;
float           calibrationFactor   = 4.5   ;
volatile byte   pulseCount          = 0     ;
byte            pulse1Sec           = 0     ;
float           flowRate            = 0     ;
float           flowMilliLitres     = 0     ;
float           flowLitres          = 0     ;
float           totalLitres         = 0     ;
float           totalMilliLitres    = 0     ;
// Parameter Sensor Suhu DS18B20.
float           tempC               = 0     ;   
  if (Firebase.ready() && signupOK ) {
     if (Firebase.RTDB.setFloat(&fbdo, "sensor/debit"  , flowMilliLitres)){
      Serial.print ("debit :");
      Serial.println (flowMilliLitres);
       }
    else {
      Serial.println("FAILED");
      Serial.println("REASON: " + fbdo.errorReason());
    }

 if (Firebase.RTDB.setFloat(&fbdo, "sensor/total"  , totalMilliLitres)){
   Serial.print ("total :");
      Serial.println (totalMilliLitres);
   }
    else {
      Serial.println("FAILED");
      Serial.println("REASON: " + fbdo.errorReason());
    }
 if (Firebase.RTDB.setFloat(&fbdo, "sensor/suhu"   , tempC)){
Serial.print ("suhu :");
      Serial.println (tempC);
}
    else {
      Serial.println("FAILED");
      Serial.println("REASON: " + fbdo.errorReason());
    }
  }
  Serial.println("______________________________");
}
2

should you initialise the sensor, e.g.

#define ONE_WIRE_BUS 2 
OneWire oneWire(ONE_WIRE_BUS); 
DallasTemperature sensors(&oneWire);
void setup(void) 
{ 
    Serial.begin(115200); 
  Serial.println("Dallas Temperature IC Control Library Demo"); 
  sensors.begin(); 
}

did you test the sensor before attempting to use it with Firebase?

3

Yes i already test it

4

can you upload a sample of the serial monitor output (as text)

5

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