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37 changes: 23 additions & 14 deletions docs/en/06-getting-data-from-firebase.md
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Original file line number Diff line number Diff line change
Expand Up @@ -13,19 +13,17 @@ Then click "ADD". A corresponding entry will be displayed in the database.
Our task is to get the value of the field "servo / angle" and turn our servo to the appropriate angle.

```c++
#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ESP8266WebServer.h>
#include <FirebaseArduino.h>
#include <Servo.h>

// WiFi configs
#define WIFI_SSID "SomeSSID"
#define WIFI_PASSWORD "SomePass"

// Firebase configs
#define FIREBASE_HOST "example.firebaseio.com"
#define FIREBASE_HOST "*******************************.firebaseio.com"
#define FIREBASE_AUTH "***************************"//Your Firebase Database Secret goes here
#define WIFI_SSID "Your_ssid" //your WiFi SSID for which yout NodeMCU connects
#define WIFI_PASSWORD "Your_password" //Password of your wifi network

// Servo
#define SERVO_PIN 4
Expand All @@ -35,9 +33,9 @@ int lastAngle = 0;

void setup(){
// Starting serial port
Serial.begin(115200);
Serial.begin(9600);
// Connect to the WiFi
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
WiFi.begin(WIFI_SSID,WIFI_PASSWORD);
Serial.print("Connecting");
while (WiFi.status() != WL_CONNECTED) {
Serial.print(".");
Expand All @@ -47,18 +45,29 @@ void setup(){
Serial.print("Connected: ");
Serial.println(WiFi.localIP());
// Connecting to the Firebase
Firebase.begin(FIREBASE_HOST);
Firebase.begin(FIREBASE_HOST,FIREBASE_AUTH);
// Servo
myServo.attach(SERVO_PIN);
myServo.write(0);
// myServo.write(0);
}

void firebasereconnect()
{
Serial.println("Trying to reconnect");
Firebase.begin(FIREBASE_HOST, FIREBASE_AUTH);
}
void loop(){
angle = Firebase.getInt("servo/angle");
if(Firebase.failed()) {
if (Firebase.failed())
{
Serial.print("setting number failed:");
Serial.println(Firebase.error());
firebasereconnect();
return;
}
angle=Firebase.getString("servo/angle").toInt();
/*if(Firebase.failed()) {
Serial.println("Getting data from Firebase failed");
delay(1000);
}else if(angle != lastAngle){
}else*/ if (angle != lastAngle){
Serial.print("Angle changed: ");
Serial.println(angle);
myServo.write(angle);
Expand Down