Abstract:

A temperature and humidity measurement system based on SHT11 and MCU technology is presented in this paper.SHT11 temperature and humidity sensor is used in this system to collect temperature and humidity data and AT89s52 MCU is used for data storage and computing.A temperature and the humidity detection system with multiple functions is designed by the expansion of peripheral circuit.The system has the advantages of high measuring precision,high reliability,small volume,low cost,and convenient operation.

Key words: temperature;relative humidity;SHT11;AT89s52