Title Design of environment monitoring system based on SHT11
Abstract
This paper mainly introduced the design of environmental monitoring system based on SHT11, the temperature and humidity sensor and single-chip technology as the core and other electronic technology combining overrun alarm. When the monitored, the temperature and humidity is calibrated with a 14bit A/D converter is connected, the converted digital temperature and humidity value to the second bus, thereby converting a digital signal with the second-line bus protocol serial digital signal into the microcontroller, microcontroller on the serial digital signal processing and analysis, processing after the converted into the liquid crystal display, through the keys to set the desired temperature and humidity range of values, if the value exceeds a predetermined range, a buzzer sounds the alarm, the corresponding status lights will be bright, so as to realize the temperature and humidity monitoring. This system has the advantages of simple structure, practical, and has wide application prospect.
