摘要: 硬件采用3-24v直流蜂鸣器,nodemcu,继电器模块,MQ-2烟感模块,5v开关电源 rule脚本采用 Rule1 ON ANALOG#A0>50 DO POWER1 1 ENDONRule2 ON ANALOG#A0<50 DO POWER1 0 ENDON 如果模拟量采集大于50,高电平 如 阅读全文