Part 1
Google Firebase ESP8266 Home Automation System: https://youtu.be/EJaWXQiDQcw
PCB Components:-
Relay 5V
Push Button (Tactile Button)
330 ohm resistor
1N4007 Diode
LEDBC547 / 2N2222 Transistor
Block Terminal Connector
PCB Header
5V Power Adapter
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