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ZkeeShop 5Pcs Water Flowing Light Module NE555+CD4017 Module Electronic Production Suite Red LED Light DIY Kit

ZkeeShop 5Pcs Water Flowing Light Module NE555+CD4017 Module Electronic Production Suite Red LED Light DIY Kit
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Produktbeschreibung

  • The inner discharge tube of NE555 is turned on, and the capacitor C1 is discharged through the 7 pins of R4, R3, and NE555. When the voltage across C1 is lower than 1 3 of the power supply voltage, the level of the 3 pin of NE555 changes from low level to high level. The .C1 is charged again, and the cycle forms an oscillation.
  • The clock oscillation signal of NE555 is continuously added to the 14th pin of CD4017. There are 10 LEDs connected to the 10 output terminals of CD4017. When the 10 output terminals of CD4017 alternately generate high level under the action of clock signal, D1-- D10 is sequentially illuminated to form a street light effect.
  • The charging time is 0.695 (R2+R3+R4)C1, and the discharge time is 0.695 (R4+R3)C1. Adjusting R4 can control the output frequency of the oscillator. (ie adjusting the R4 to adjust the flow speed of the LED light)

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