LED chaser with only one IC555

This circuit is a simple LED chaser, (Bike Turning Signal Circuit) used IC 555 and 5 transistors.
Here we used IC 555 as astable multivibrator to running the transistors.
Flashing speed depend on both capacitors.
1K resistors used for each LED as protection.
The circuit run with 12v and draw 40mA current when all LEDs be turn ON.

Parts list:
IC555 https://goo.gl/R2x7X3
LEDs(5pcs) https://goo.gl/SPCY5o
Transistor S9013(5pcs) (Transistor Kit https://goo.gl/5csLJy)
Diode 1N4148 https://goo.gl/y5S4sr
(Capacitor Kit https://goo.gl/6zqbJy)
Capacitor 470uF
Capacitor 100uF
(Resistor kit https://goo.gl/p4JvQY)
Resistor 4.7K (2pcs)
Resistor 10K (2pcs)
Resistor 680 ohm
Resistor 1K (6pcs)

 

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categories : circuits,LED flasher and chaser