Interface Relay With PIC

Description Relay is an electrically operated switch. Relay is used to isolate electrical load. Two configuration 1. NO(normally open) 2.NC(normally closed) Relay has a coil which is energized by 12v, when coil energized switching action takes place. BC548 BC548 is general purpose NPN bipolar junction transistor . This transistor act as a driver to pull … Continue reading Interface Relay With PIC