Garosa 2 Pcs NE555+CD4017 Module Water Flowing LED Light Electronic Production Suite Red Color Flashing Lights Lamp DIY Kit Electronic Circuit

Mainly composed of clock generation circuit and decimal counter circuit.
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.
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.
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
Adjust the R4 to adjust the flow speed of the LED light.

Specification:
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

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