ABSTRACT
The goal of the design is to find a solution which can widely used in industry, agriculture, national defense and also have a kind of high performance-to-price ratio.
The design uses monolithic integrated circuit 8051 as the control core, taking the water temperate and atmospheric humidity. The temperature value which is carried by the sensor 18B20 is on the 1602. The ADC0809 converts the digital signal which produces by the humidity sensor to the humidity values, This value is also on the 1602.
The article describes the composition of the meter hardware, the software and the sub-item of the meter hardware, the software. The article also introduces the various parts of electric circuits, and this system hardware electric circuit. In order to realize the function which according to the hardware design, this article has also described the design of the software, and after the repeatedly simulation run, the debugging, the revision simplified the software system, finally has formed a set of complete software.
Keywords: Temperature and Humidity control;Monolithic integrated circuit;Temperature sensor;Humidity sensor