PCF8591工作原理及与单片机通信代码设计

该文以STC15W1K24S单片机为核心控制器,分析PCF8591的工作原理,并以单片机采集气敏传感器的气体浓度为例,设计一个气体浓度监测自动控制系统,给出单片机和PCF8591之间通信的代码。设计代码在实际设备上经过验证,可以正确采集到气敏传感器的气体浓度。

In this paper,taking STC15W1K24S single chip microcomputer as the core controller,the working principle of PCF8591 is analyzed;with the gas concentration of gas sensor collected by single chip microcomputer as an example,an automatic control system for gas concentration monitoring is designed;and the communication code between single chip microcomputer and PCF8591 is given.The design code has been verified in the actual equipment,and the gas concentration of the gas sensor can be collected correctly.