Home Automation Extension Box | 2 way Switch and Smartphone | ESP8266

YouTube Tutorial:-

Materials:-

https://www.flyrobo.in/nodemcu_esp8266_wifi_development_board?tracking=5c723900abvrl

Relay Module:- https://www.flyrobo.in/5v_four_channel_relay_module?tracking=5c723900abvrl

Jumpers:- https://www.flyrobo.in/combo-of-3-type-jumper-cables-f-f-f-m-m-m?tracking=5c723900abvrl

Breadboard:- https://www.flyrobo.in/high_quality_solderless_breadboard_with_430_tie_point_for_arduino?tracking=5c723900abvrl

3 pin Socket

Switch 2 Way

Switch Board

Wire

3 pin Plug

Circuit:-

Code:-

/************************************************************* Download latest Blynk library here: https://github.com/blynkkk/blynk-library/releases/latest *************************************************************/ #define BLYNK_PRINT Serial #include <ESP8266WiFi.h> #include <BlynkSimpleEsp8266.h> // You should get Auth Token in the Blynk App. // Go to the Project Settings (nut icon). char auth[] = "---------------"; //You will get this Auth Token in Gmail if you signin Blynk app with your Gmail ID // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = "------"; //Enter your WIFI Name char pass[] = "------";//Enter your WIFI Password void setup() { // Debug console Serial.begin(9600); pinMode(D0,OUTPUT); pinMode(D1,OUTPUT); pinMode(D2,OUTPUT); pinMode(D3,OUTPUT); digitalWrite(D0,HIGH); digitalWrite(D1,HIGH); digitalWrite(D2,HIGH); digitalWrite(D3,HIGH); Blynk.begin(auth, ssid, pass); // You can also specify server: //Blynk.begin(auth, ssid, pass, "blynk-cloud.com", 8442); //Blynk.begin(auth, ssid, pass, IPAddress(192,168,1,100), 8442); } void loop() { Blynk.run(); }

• ESP8266

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