TIMER LAMPU
30 menit operasi Sinyal LED berkedip 6 menit terakhir sebelum turn-off Komponen: R1 1K 1/4W Resistor R2 4K7 1/4W Resistor R3 10M 1/4W Resistor R4 1M 1/4W Resistor R5 10K 1/4W Resistor C1 470µF 25V Electrolytic Capacitor C2-C4 100nF 63V Polyester Capacitors D1-D4 1N4002 100V 1A Dioda D5 5mm. Red LED IC1 4012 Dual 4 …