ABSTRACT
In order to save time, we must understand the overall requirements of the software and the framework of the design. The design of LabVIEW software can be divided into four steps: the creation of the front panel, the block diagram of the program, the creation of the icon, and the running of the debugger (Kalkman, 1995). The temperature and humidity acquisition system PC program has three coordinate modules. These include data acquisition, display, and storage. Figure 1 shows the process. As the configuration of serial port exists outside the While cycle, we can reduce the number of configurations for the serial port, saving time for data acquisition, thus improving the execution efficiency of programs. Two judgments result from the button control, when the button is pressed, the switch is judged to be N or Y.
