Relays
are used to control high voltage loads, a signal of 5vdc can control a 230V
load, with the help of relay circuit.
In this
video I am showing 4 relays circuit assembled on general purpose PCB.
Compoenent:
General
Purpose PCB: 1 No.
12vdc
relay : 4Nos.
UF4007:
4 Nos.
NPN
Transistor : 4 Nos.
LED 3mm
Red: 5.
Resistors
15 KOhm: 4 Nos.
Resistors
10 KOhm: 4 Nos.
Connectors.