51单片机制作的气体报警二次仪表.代码包含12864液晶(无字库)图形驱动,8583时钟芯片驱动,TLC2543 A/D芯片驱动,全套硬件Proteus仿真演示,调节滑动变阻器可模拟气体传感器浓度变化,输入正确密码后可对系统进行配置.-51 SCM secondary instrument produced gas alarm. Code contains 12864 LCD (no font) graphics driver, 8583 clock chip driver, TLC2543 A