NE555+CD4017 Red and Blue Flashing Lights DIY Kit (KIT736)

Working voltage:DC9-12V
Chips:NE555+CD4017
Lights color:red and blue
This kit consists of a multi harmonic oscillator composed of NE555 and a CD4017 decimal counter/pulse distributor. When the first, third, and fifth pulses arrive, Q0, Q2, and Q4 sequentially output a high level, and the blue LED flashes three times. When the sixth, eighth, and tenth pulses arrive, Q5, Q7, and Q9 sequentially output a high level, and the red LED flashes three times. When the 11th, 13th, and 15th pulses arrive, the blue LED flashes again, and the blue and red LEDs cycle alternately to form a simulated alarm light. Changing the size of RP1 can change the oscillation period, thereby changing the flashing speed of the LED. The entire circuit DC9-12V can work

Component List:
R1, R2, R3 resistor 10K 3
R4, R5 resistor 100K 2
RW1 blue white adjustable resistor 100K 1
D1- D6 Diode 1N41 48 6
C1 electrolytic capacitor 10uF 1
02 Ceramic capacitor 103 1
Q1, 02 transistor 8050 2
L1-L12 LED Φ 5mm red 12
L13-L24 LED Φ 5MM blue 12
U1 NE555 DIP8 1
U2 CD4017 DIP16 1
PCB board 1