AD0809+LCD1602+STC89C52+无源蜂鸣器报警，可显示酒精浓度，并且可以设置浓度值（加、减） 基于MQ-3酒精浓度传感器的酒精浓度测试仪MQ-3酒精浓度测试仪..................\AD.c..................\AD.h..................\AD.LST..................\AD.OBJ..................\BEEP.c..................\BEEP.h..................\BEEP.LST..................\BEEP.OBJ..................\DELAY_MS.c..................\DELAY_MS.h..................\DELAY_MS.LST..................\DELAY_MS.OBJ..................\jiujingnongdu..................\jiujingnongdu.hex..................\jiujingnongdu.lnp..................\jiujingnongdu.M51..................\jiujingnongdu.plg..................\jiujingnongdu.uvopt..................\jiujingnongdu.uvproj..................\jiujingnongdu_uvopt.bak..................\jiujingnongdu_uvproj.bak..................\LCD.C..................\LCD.h..................\LCD.LST..................\LCD.OBJ..................\MAIN.c..................\MAIN.LST..................\MAIN.OBJ..................\STARTUP.A51..................\STARTUP.LST..................\STARTUP.OBJ..................\源码汇总.doc……