Blynk Home Automation Physical Button Feedback Status

YouTube Tutorial:-

Materials:-

NodeMCU ESP8266

Relay

Push Button (Tactile Button)

330 ohm resistor

1N4007 Diode

LED

BC547 / 2N2222 Transistor

Block Terminal Connector

PCB Header

5V Power Adapter

Circuit:-

BreadBoard Circuit

Schematic:-

AC Voltage Bulb Holder Wiring

Download PCB Gerber File:- https://drive.google.com/open?id=1JJybuRhj3EC-PB5NPVAh9eG61N3MLT5u

Blynk Clone App QR CODE:-