基于STM32的酒精检测仪设计

Design of Alcohol Detector Based on STM32StAbstract:At present,with the rapid improvement of China's economic level,people's income has also increased significantly compared to the past.At this time,more and more people buy cars,and the number of traffic accidents caused by drunkdriving is also increasing.In other respects,due to alcoholism or specialcircumstances,many sad and regretful accidents have also occurred,and alcoholdetectors can effectively reduce accidents in this area.In this article,the alcohol detector based on STM32F103C8T6 single-chipmicrocomputer is introduced.The detector designed this time is mainly composed ofthree parts,first is the OLED display;second is the MQ-3 ethanol gas sensor,andfinally is the single-chip,its model STM32F103C8T6.After warming up,the detectorcan use its own gas sensor to collect the alcohol concentration in the air.After thecollected information is processed by the A /D conversion circuit of the detector andthe single-chip microcomputer,the alcohol concentration value can be displayed inInthe display screen,the detection function of the detector can be realized at this time.This design can detect the alcohol concentration in various environments,and can beused in traffic safety or wineries,food processing factories and other places toeffectively improve safety.Keywords:STM32F103C8T6 single chip microcomputer MQ-3 sensor OLEDdisplay screenSignature of Supervisor: