基于单片机的甲醛检测器设计

南昌师范学院毕业论文（设计）The design of formaldehyde detection system basedonAT89C52AbstractWith the development of society,people's living standards continue toimprove,there is "food and clothing"to "well-off",for decoration materials to emitformaldehyde concentration detection,to provide a reference standard for thesafety and comfort of people's lives.In this paper,the C51 series of STC89C52RCas the control core,formaldehyde module sensor module detection information,setup the system keyboard module,alarm circuit,liquid crystal display,compositionof formaldehyde detector system assembly to achieve all the functions.Key words:Single chip microcomputer,Formaldehyde detection system,Thekey module,Alarm circuit,Liquid crystal displayII