In order to long-term monitor gas changing rule of internal environment of special equipment,an embedded gas sensing system is researched and fabricated based on STM32 MCU. The core sensors use SHT15 digital temperature and humidity sensor,LOX02 digital oxygen sensor,and independently developed MEMS hydrogen sensor. An unique low power consumption supply scheme is designed to effectively reduce sleep power consumption of the system. Test results show that the system can accurately measure some important ind...
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