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2 Pcs NE555 and CD4017 Circuit LED Water Flowing LED Flashing Lamp LED Chaser Water Flowing Light Module DIY Soldering Kit for Electronic Fun

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$9.37

$ 4 .31 $4.31

In Stock

About this item

  • [EASY ASSEMBLY PROCESS] With clear instructions included, users can easily solder the components together to build their own flashing LED lights.
  • [CUSTOMIZABLE LED EFFECTS] The NE555 core allows for easy adjustment of LEDspeed, creating stunning water-light effects.
  • [COMPACT AND ] Measuring 5.4 x 2.1cm and 1.6mm thick, this kit is compact yet sturdy, ensuring long-lasting functionality.
  • [HIGHLY EFFICIENT CIRCUIT DESIGN] This kit is mainly composed of a clock generation circuit and a decimal counter circuit, ensuring optimal performance.
  • [WIDE VOLTAGE RANGE] Suitable for various power sources, this kit operates within a voltage range of 2.5~14.5V, making it versatile and adaptable.


1. Mainly composed of clock generation circuit and decimal counter circuit.
2. The self-excited multivibrator with NE555 as the core, the power supply charges capacitor C1 through R2, R3, R4. When C1 starts charging, the 2 pin of NE555 is still at low level, so the output pin 3 is high level. When the power supply is charged to the 2/3 power supply voltage through R2, R3, and R4, the output pin 3 level changes from high to low, and the NE555 internal discharge tube is turned on. The capacitor C1 is discharged through the 7-pin of R4, R3, and NE555. Until the voltage across C1 is lower than 1/3 of the power supply voltage, the level of the 3 pin of the NE555 changes from low level to high level. C1 is charged again, and the cycle forms an oscillation.
3. The charging time is: 0.695 (R2+R3+R4)C1, the discharge time is: 0.695 (R4+R3)C1, the R4 can be adjusted to control the output frequency of the oscillator, and the clock oscillation of NE555 is continuously added to the 14th pin of CD4017.
4. Ten LEDs are connected to the 10 outputs of the CD4017. When the 10 outputs of the CD4017 alternately generate a high level under the action of the clock , D1--D10 are sequentially illuminated to form a water-light effect.
5. Adjust the R4 to adjust the speed of the LED light.

Spec:
Item Type:Water Flowing Light
Voltage:2.5~14.5V
Size:5.4 x 2.1cm / 2.13 x 0.83in
Thickness:1.6mm

Package List:
2 x Module