In the hot summer, you need a cool place-self-made water cooling system (Article 8 system design)

It is found that this period of time will become more and more difficult. -_-!!

The circuit board has been opened. This week, I started to prepare for the development of the program. Although I have never written a single-chip microcomputer program before, the program design itself has some foundation. It's not as exaggerated as electronics. Everything starts from scratch. This is something like last week's transistor problem for half a day, or something like the principle of the BEC foot.

It is said that it is a system design. In fact, it was relatively clear during the initial sketch design.
What are the functions required for water cooling. At the beginning, there are clear instructions. Such a design has guiding significance.
This space should be placed in the first part ^. Continue to improve ^
Another purpose of this figure is to sort out my logic, so that I will not be able to think about the problems that have been developed there. As a result, the program has been repeated too much.

Case chart

The main automatic control and manual control components of the system.
Automatic control is the function of enabling and disabling cooling Based on the temperature.
The manual control module forces the water cooling to work or shut down. This mode is mainly used in special cases. If the temperature control probe breaks down, or the test requires constant cooling.

Overall Program Process

Status switching Diagram

The main problem here is that the temperature will change during the critical period. Buffer points at critical points to prevent frequent switch cooling system problems.