3 Rangkaian Elektronik Led Blinking Atau Led Berkedip

In this video, I use three simple circuits with a 12V input for a blinking LED circuit. The first circuit uses a transistor: BC548 transistor, 10-100kΩ potentiometer, 1000 uf/35V electrolytic capacitor, 470 ohm resistor, 5mm LED. The second circuit uses an optocoupler: 817 optocoupler, 1kΩ, 10kΩ resistor, 1000 uf/35V electrolytic capacitor, 5mm LED. The third circuit uses a relay: 12V relay, 220 uf/50V electrolytic capacitor, 12V LED, And other supporting equipment. #ledblinking