Introduction Hey there in this session we will discuss about home automation i.e. IOT so we are using ESP8266-12F or Nodemcu and in software portion we will use blynk IOT to control all things over internet from one point to any point in the world. Components ESP8266-12F/12E or Nodemcu board USB to TTL converter(if you don't use nodemcu or any development board) Breadboard 100R*5 resistors LEDs Circuit So this is minimum circuit requires to work properly and while esp8266 is connect with wifi it consumes minimum of 150mA so make sure you have used 3.3v regulator to work properly, as I have used AMS1117 3.3v regulator which is enough to power the esp8266. To program esp8266 you need any USB to TTL converter like CH340 or FDTI and wire connections are as follows ...