This is a beautiful sequential LED flasher (LED chaser) that also called KNIGHT READER CIRCUIT.
Flashing speed can changed by changing the value of capacitor or 33K resistor.
The circuit run by 5v and draw very low current lower than 10mA.
You can run the circuit by 12v battery but you have use 1K resistor rather than 470ohm resistor to LED protection.
Parts list:
IC4017
IC555
Resistor 470 ohm
Resistor 33K
Diode 1N4148(8pcs)
Capacitor 2.2uF
LEDs(11pcs)
You can run the circuit by 12v battery but you have use 1K resistor rather than 470ohm resistor to LED protection.
Parts list:
IC4017
IC555
Resistor 470 ohm
Resistor 33K
Diode 1N4148(8pcs)
Capacitor 2.2uF
LEDs(11pcs)
