基于DHT11传感器的温湿度采集系统

Temperature and Humidity Acquisition System Based on Sensor DHT11

针对环境温湿度采集系统对功耗及成本的要求,设计以Cortex-M3为主控芯片,选用DHT11作为温湿度采集传感器,将采集的温湿度数据显示到TFTLCD。如果采集的数据超过要求,蜂鸣器发出报警信号。实验结果表明该系统电路简单,工作稳定可靠。

A temperature and humidity acquisition system is designed by using Cortex-M3 as the main controlling chip and DHT11 as the sensor of temperature and humidity, which meets the requirements of low power consumption and costs. TFTLCD is used to display temperature and humidity values. If the collected data is over requirement, a buzzer sends out alarm signal. Experimental results show that the system works stably and reliably with simple circuit.