How

Introduction In this tutorial you will learn how to make simple home automation system using blynk environment and NodeMCU (ESP8266). So without any further a do lets get started! Materials & supplies Part List: ESP8266 2N3904 Transistor 5V Relay Resistors 1N4007 Diode Screw Terminal Tools: Soldering Iron Solder wire Helping Hands Schematic Step 1: Choosing […]