基于STM32的外围电路开发检测空气中的PM2.5和甲醛，酒精灯有害气体-Peripheral circuit development detection based on STM32 PM2.5 and formaldehyde in the air, alcohol lamp harmful gas

基于stm32单片器气体检测系统设计，可检测天然气，酒精等气体，方便快捷。

基于STM32的智能垃圾桶，实现的功能有红外传感器检测自动开盖，LED屏显示，温湿度测量，超重报警，异味检测，可燃气体检测(Based on STM32 intelligent trash can, the functions realized include automatic cover opening of infrared sensor detection, LED screen display, temperature and humidity measurement, overwei