4 RELAY SMART HOME
At first, I cut zero PCB at 9*5cm(width*height). then I fit all the components(relays,diode,terminals,esp8266 etc.) to the PCB.
Thereafter, I soldered all the components as per the schematic. The testing of the circuit is on youtube on my channel.
And, for the Blynk app configuration click here. And I recommend using 5 volts 0.5 amperes for this project. To upload the code, I used the programmer's witty cloud development board.

Video