这个是基于AT89S52单片机的多用气体检测系统程序源码，气体传感器用的是威盛公司的MQ系列（我用的是MQ-2），可以检测酒精、甲烷、煤气、二氧化硫等多种气体。具体硬件上，传感器输出的数据经TLC549转换成串口数据直接送给单片机采集处理，然后送LCD1602A显示！十分强大~-This is based on multi-MCU AT89S52 gas detection system source code, gas sensor using a VIA' s MQ series (I use the MQ-2), can detect ethanol, methane, gas, sulfur dioxide and other gases. Specific hardware, the sensor output data converted by the TLC549 serial data acquisition and processing directly to the microcontroller and then sent LCD1602A show! Very strong ~