Feature

●This kit is mainly composed of clock generation circuit NE555 and decimal counter 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 signal, D1--D10 are sequentially illuminated to form a water-light effect.
●Adjusting resistor R4 controls the output frequency of the oscillator. Thereby adjusting the flow speed of the LED lamp.
●This kit is clearly labeled and easy to assemble, suitable for electronics enthusiasts and students to practice.
●ATTENTION: The components contained in this kits need to be soldered by the user.


Description

Technical Specifications: Main Chips: NE555, CD4017 Supply Voltage: 2.5V－14.5V Operating Temperature:-10 -70 Celsius PCB Size: 54 x 21mm/ 2.13 x 0.83inch PCB Thickness: 1.6mm/ 0.06inch Charging time: 0.695 (R2 + R3 + R4) C1 Discharge time: 0.695 (R4 + R3) C1 Package Included: 1x PCB board 1x NE555 1x CD4017 1x 2P curved pin 2x 1UF capacitor 10x 3mm Red LED 10x 1K resistor 1x 2.2K resistor 1x 10K resistor 1x 50K blue white potentiometer