16 Channel Water Flowing Lights with NE555 , 74HC595 Chips - DIY Kit

There is an integrated circuit that, despite being produced for half a century, has not become outdated and its range of applications is so wide that many books have been written about it.

Meet the NE555 timer!

This is a self-assembly and soldering learning kit.
Easy to assemble.
Assembly time 1 hour.

Functional Description:

Core chips are NE555 and 74HC595, two buttons can change lighting cycle start point LED status so as to achieve random flowing combination. LED is ultra bright warm white LED, and it can be used as small night lamp.

Bistable circuit formed by NE555 and 74HC595, it can generate oscillating pulse, and adjust RP can change the oscillating frequency so that the flowing speed can be changed. 74HC595 has 8-bit shift register and a storage device, Tri-state output function. Shift register and storage device has mutual-independent clock.

Instruction:

The systems have an assembly diagram printed on the board. You need to pay attention to polarity in the case of elements such as capacitors, diodes, transistors. In the case of LEDs, the longer leg is plus +, most elements have their parameters described on the housing. Resistors may have stripe markings, their resistance and tolerance can be read using calculators available on the Internet or measured with a multimeter. The assembly order is usually arbitrary, depending on the layout, we assemble the smallest elements first.

Operating Voltage: DC 4.5-5V
PCB Size: 50x50 mm

Component List:

Metal Film Resistor R1,R2 180ohm x2
Metal Film Resistor R3，R4 840ohm x2
Electrolytic Capacitor C1,C2 100uF x2
Ceramic capacitor C3 0.1uF 104 x1
Button SW1,SW2 6*6 x2
Potentiometer RP x1
NE555 IC1 DIP-8 x1
74HC595 IC2,IC3 DIP-16 x2
LED L1-L16 5mm x16
PCB 50*50 mm x1