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Water Flowing LED Module NE555 + CD4017 Water Flowing Light LED Module DIY Kit - RS1922

Water Flowing LED Module NE555 + CD4017 Water Flowing Light LED Module DIY Kit - RS1922


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NE555 + CD4017 Water Flowing LED Module DIY Kit comes with all the components you need to assemble and solder a running LED module. Water Flowing LED Module has a double-sided board with a surface mount and through-hole configuration. Water Flowing LED Module is designed for users with advanced soldering skills. You must solder some components on the top surface and some components on the bottom side of the board. The Water Flowing LED Module has a very simple assembly process that will take anywhere between 30 minutes to an hour.

This Water Flowing LED Module Kit is mainly a decimal counter circuit and circuit generated by the clock, from the core of the self-excited NE555 multivibrator power through R2, R3, and R4 charge the capacitor C1, C1 started when charging, NE555 2 feet still in low, so the output pin 3 goes high when power through R2, R3, R4 to charge C1 to 2/3 of the supply voltage, the output pin 3 level from high to low, NE555 conducting internal discharge, capacitor C1 through R4, R3, NE555 7 feet discharge until the voltage across C1 is less than 1 /3 of the supply voltage, NE555 and 3 feet level from low to high.

C1 and charge again this cycle oscillation formed. Charging time: 0.695 (R2 R3 R4) C1, discharge time: 0.695 (R4 R3) C1, R4 can be adjusted to control the output frequency of the oscillator, the oscillation clock signal is applied continuously NE555 CD4017 14 feet, the output terminal 10 is connected with the CD4017 10 LED, when the output terminal 10 turns CD4017 generated clock signal at a high level, the D1 D10 are sequentially lit to form a water-light effect. You can adjust the flow rate adjustment R4 LED light.

Note: All components will be sent unassembled, you need to assemble and solder Water Flowing LED Module by yourself.


  • Chip: NE555, CD4017
  • LED Quantity: 10pcs
  • LED Color: Red
  • Voltage: 2.5V 14.5V
  • Resistor Type: SMD
  • PCB Size: 54.5 x 20.5 x 1.5 mm (LxWxH)

Package Included:

  • 1 x PCB Board
  • 1 x NE555 Chip
  • 2 x 1F Capacitance
  • 1 x CD4017 Chip
  • 1 x 2-pin Bending
  • 10 x 3mm Red LED
  • 1 x 2.2K Resistance
  • 1 x 10K Resistance
  • 10 x 1K Resistance
  • 1 x 50K Blue-white Potentiometer