基于MG811探头的二氧化碳采集系统设计

Carbon Dioxide Capture System Based on MG811 Probe

二氧化碳采集系统以德州仪器公司的MSP430F169为主要控制芯片,采用MG811二氧化碳气体感应探头检测二氧化碳气体浓度。通过HT1621来驱动段式LCD,显示测量的二氧化碳浓度数据,系统外扩M25P80芯片,实现对测量数据的存储,并可通过USB与上位机进行通信。实验证明,该系统设计工作稳定、结构简单、便于携带,有良好的推广前景。

A carbon dioxide capture system takes MSP430F169 of Texas Instruments as the main controlling chip, and it uses M（;811 carbon dioxide gas sensing probe to detect carbon dioxide gas concentration. The capture system displays the carbon dioxide concentra-tion data through segment LCD drove by HT1621, and the system has external expansion M25P80 chip to save the measurement data storage that can communicate with PC through USB. Tests show that the system works stable, simple structure, easy to carry, with good promotion prospects.