firebase with nodemcu code code example
Example: nodemcu with firebase
#include
#include
#define FIREBASE_HOST "**********" // Your Firebase Project URL
#define FIREBASE_AUTH "************" // Your Firebase Database Secret
#define WIFI_SSID "**************" // your WiFi SSID
#define WIFI_PASSWORD "********" // your WiFi PASSWORD
#define Relay1 12 //D6
int value1;
#define Relay2 14 //D2
int value2;
#define Relay3 4 //D1
int value3;
#define Relay4 5 //D5
int value4;
void setup()
{
Serial.begin(115200);
pinMode(Relay1,OUTPUT);
pinMode(Relay2,OUTPUT);
pinMode(Relay3,OUTPUT);
pinMode(Relay4,OUTPUT);
digitalWrite(Relay1,HIGH);
digitalWrite(Relay2,HIGH);
digitalWrite(Relay3,HIGH);
digitalWrite(Relay4,HIGH);
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.setInt("S1",0);
Firebase.setInt("S2",0);
Firebase.setInt("S3",0);
Firebase.setInt("S4",0);
}
void firebasereconnect()
{
Serial.println("Trying to reconnect");
Firebase.begin(FIREBASE_HOST);
}
void loop()
{
if (Firebase.failed())
{
Serial.print("setting number failed:");
Serial.println(Firebase.error());
firebasereconnect();
return;
}
value1=Firebase.getString("S1").toInt(); //Reading the Status of Variable 1 from the firebase
if(value1==1)
{
digitalWrite(Relay1,LOW);
Serial.println("Relay 1 ON");
}
else if(value1==0)
{
digitalWrite(Relay1,HIGH);
Serial.println("Relay 1 OFF");
}
value2=Firebase.getString("S2").toInt(); //Reading the Status of Variable 2 from the firebase
if(value2==1)
{
digitalWrite(Relay2,LOW);
Serial.println("Relay 2 ON");
}
else if(value2==0)
{
digitalWrite(Relay2,HIGH);
Serial.println("Relay 2 OFF");
}
value3=Firebase.getString("S3").toInt(); //Reading the Status of Variable 3 from the firebase
if(value3==1)
{
digitalWrite(Relay3,LOW);
Serial.println("Relay 3 ON");
}
else if(value3==0)
{
digitalWrite(Relay3,HIGH);
Serial.println("Relay 3 OFF");
}
value4=Firebase.getString("S4").toInt(); //Reading the Status of Variable 4 from the firebase
if(value4==1)
{
digitalWrite(Relay4,LOW);
Serial.println("Relay 4 ON");
}
else if(value4==0)
{
digitalWrite(Relay4,HIGH);
Serial.println("Relay 4 OFF");
}
}