ABSTRACT
With the development and extensive application at full speed of the technology of the computer, what industrial production and technology of the computer are contacted is closer and closer now, through computer deal with ability synthetically fast nowadays, is it control to temperature and humidity computer , location of control to implement, to reduce safety factor of producing , raise labor force efficiency , improve production environment wait for and have very remarkable function
Digital temperature and humidity detection method is when the general environment in the event of a change in temperature and humidity. when the environment changes in temperature and humidity,humidity-temperature sensors and humidity sensors as the temperature and humidity changes in the linear change, through signal detection and conversion circuit will change the resistance into the corresponding changes in voltage, By the A / D converter voltage of the analog signal into a digital signal and sent to the MCU, the MCU to the acquisition of signal processing and filtering through the look-up table by the actual measurement of humidity values, followed by single All of the external interface circuit showed that the temperature and humidity values
