You can achieve any combination of your favorite 16-way water lamp effect, very interesting, simple circuit, the assembly success rate is high.
Adopt 1.5mm thickness board, enlarged pad, relatively wire.
Core circuit is NE555 and 74HC595, the two keys can change the 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.
|1||Name||Water lights DIY Kit|
|2||Operating Voltage||DC 4.5-5V|
|NO.||Component Name||PCB Marker||Parameter||QTY|
|1||Metal Film Resistor||R1,R2||180ohm||2|
|2||Metal Film Resistor||R3，R4||840ohm||2|
|4||Ceramic capacitor||C3||0.1uF 104||1|
NOTE:You can complete the installation by PCB silk screen and component listing.