Schematic of 9V LED Blinker
U1
R3
Resistance
1kΩ
R2
Resistance
680kΩ
R1
Resistance
1kΩ
C3
Capacitance
100nF
C2
Capacitance
10nF
BT1
D1
SW1
C1
Capacitance
1uF
C4
Capacitance
10uF