Abstract
In today's society is an era of new technology emerge in endlessly, the
rapid development of science and technology, more rapid development in
the field of electronics, as well as affects our lives. With the improvement
of people's living standard, the water lights in real life the role of more
and more important. For example: in the busy traffic road traffic, flashing
water traffic lights, remind us to a disciplined traffic rules, in a busy
street, neon-lit flickering lamp they attract the attention of passers-by,
water and even in some big mall building on automatic doors are
equipped with automatic water lamp,tell people the time and date.
Usually water lamp application of single chip microcomputer is designed,
and MCU design cost is higher, the requirement of programming is high.
The design requirements of flowing water light at a predetermined
time arrived, will produce a control signal to control the flow of LED
lights, such as intermittent, leds flow can be changed with the change of
the circuit, and has the function of automatic control, manual control,
flow control, etc. Mainly refer to the principle of digital circuit of
counter. NE555 oscillator role related knowledge in the process of design
need to know the specific function of related chip (CD4017, NE555).
Serious connection circuit design, as a result of the last light water flow is
very clear and stable, so the test result is very simpleand very successful.
