DORHEA 3 Set Electronic Flashing Lights Soldering Practice Board LED NE555 CD4017 IC LED Electronic Lights Kits Red Blue Dual-Color DIY Kit Strobe Electronic Suit Flashing Lights Components DIY

The two-color strobe light is a very interesting circuit that can control the blue LED and the red LED to flash alternately to form a visual effect of the analog warning light. The circuit can be used for electronic toys, art lighting, LED billboards ,ect. You can also increase your interest in electronic technology and the ability to apply digital circuits by making this circuit. The circuit working voltage: DC9-12V. The product does not include battery. It is simple to make, has obvious effect and is interesting. It is suitable for electronic enthusiasts and student event assembly. Specially designed for the training, cost-effective, red diodes and blue diodes can be opened with wire connections to expand the lamp distance. The original board number and model on the circuit board, the right seat can be installed. Circuit working principle: The circuit consists of a multi-harmonic oscillator consisting of NE555 and a CD4017 decimal counter and a puncher. When the 1.3.5th pulse arrives, Q0.Q2.Q4 outputs a high level in turn, and the blue LED flashes 3 times, the 6.8th. When 10 pulses arrive, Q5.Q7.Q9, in turn output high level, red LED flashes 3 times. When the 11.13.15 pulse comes to the blue LED and then flashes, the cycle blue and red LEDs alternately flash Form a warning light. Changing the RP1 size can change the oscillator period, thus changing the blinking speed of the LED. The entire circuit can work with DC9-12V. Package include: 3 X two-color electronic suit flashing lights components DIY kit Circuit testing and trouble shooting: 1. Correctly access 9v voltage after power-on, the LED will alternately emit light, providing condition RP1 blue and white potentiometer to change the blinking speed. 2. If it does not work, check the components for installation errors, solder joints, and check for leaks.