Exploration of Humidity Data Acquisition System Based on Single Chip Microcomputer

Abstract

Exploring a kind of the humidity data acquisition system with higher performance-price ratio is vital to the environmental monitoring. At the present work, a novel of the humidity data acquisition system has been developed so as to collect and store the environmental humidity data. It consists of humidity sensor of DHT11£¬LED digital display and single chip microcomputer (SCM) of AT89S52. AT89S52 was used as the control chip which assembled with humidity sensor of DHT11 and digital display. Moreover, the behavior of humidity data acquisition was simulated with the software of Proteus; the results show that this designed system can collect the humidity data at bigger range. Therefore, the designed humidity acquisition system effectively achieves humidity monitoring, and has advantages of smaller volume, higher performance-price ratio, and portable.