NE555+CD4017 Light Water Flowing Light LED Module Kit For DIY
Electronic Project
Description
This package is mainly decimal counter circuit and circuit
generated by the clock , from the core of the self-excited NE555
multivibrator power through R2, R3, 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 oscillations 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 is applied 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 lights .
Specification
Material: Electrical components
Chip: NE555, CD4017
LED Quantity: 10pcs
LED Color: Red
Voltage: 2.5V - 14.5V
PCB Size: 54mm x 21mm
PCB Thickness: 1.6mm
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