The sensor collect ambient air information (temperature and humidity, concentration of formaldehyde, toluenepm and 2.5 ), and the STM32F103C8T6 as a system controller.The LCD screen displays information of air quality ,real-time clock and calendar. When the air quality exceeds a certain indicator, the buzzer alarm, LED lights. The LCD screen switch through the button.

air detection\keilkilll.bat
.............\CORE\core_cm3.c
.............\....\core_cm3.h
.............\....\startup_stm32f10x_hd.s
.............\....\startup_stm32f10x_md.s
.............\project\project.uvgui.Administrator
.............\.......\project.uvgui_Administrator.bak
.............\.......\project.uvopt
.............\.......\project.uvproj
.............\.......\project_project.dep
.............\.......\LIST\project.map
.............\.......\....\startup_stm32f10x_md.lst
.............\.......\OBJ\beep.crf
.............\.......\...\beep.d
.............\.......\...\beep.o
.............\.......\...\core_cm3.crf
.............\.......\...\core_cm3.d
.............\.......\...\core_cm3.o
.............\.......\...\delay.crf
.............\.......\...\delay.d
.............\.......\...\delay.o
.............\.......\...\dht11.crf
.............\.......\...\dht11.d
.............\.......\...\dht11.o
.............\.......\...\ExtDll.iex
.............\.......\...\font.crf
.............\.......\...\font.d
.............\.......\...\font.o
.............\.......\...\key.crf
.............\.......\...\key.d
.............\.......\...\key.o
.............\.......\...\lcd12864.crf
.............\.......\...\lcd12864.d
.............\.......\...\lcd12864.o
.............\.......\...\led.crf
.............\.......\...\led.d
.............\.......\...\led.o
.............\.......\...\main.crf
.............\.......\...\main.d
.............\.......\...\main.o
.............\.......\...\misc.crf
.............\.......\...\misc.d
.............\.......\...\misc.o
.............\.......\...\ms1100.crf
.............\.......\...\ms1100.d
.............\.......\...\ms1100.o
.............\.......\...\project.axf
.............\.......\...\project.hex
.............\.......\...\project.htm
.............\.......\...\project.lnp
.............\.......\...\project.plg
.............\.......\...\project.sct
.............\.......\...\rtc.crf
.............\.......\...\rtc.d
.............\.......\...\rtc.o
.............\.......\...\startup_stm32f10x_md.d
.............\.......\...\startup_stm32f10x_md.o
.............\.......\...\stm32f10x_adc.crf
.............\.......\...\stm32f10x_adc.d
.............\.......\...\stm32f10x_adc.o
.............\.......\...\stm32f10x_bkp.crf
.............\.......\...\stm32f10x_bkp.d
.............\.......\...\stm32f10x_bkp.o
.............\.......\...\stm32f10x_exti.crf
.............\.......\...\stm32f10x_exti.d
.............\.......\...\stm32f10x_exti.o
.............\.......\...\stm32f10x_fsmc.crf
.............\.......\...\stm32f10x_fsmc.d
.............\.......\...\stm32f10x_fsmc.o
.............\.......\...\stm32f10x_gpio.crf
.............\.......\...\stm32f10x_gpio.d
.............\.......\...\stm32f10x_gpio.o
.............\.......\...\stm32f10x_it.crf
.............\.......\...\stm32f10x_it.d
.............\.......\...\stm32f10x_it.o
.............\.......\...\stm32f10x_pwr.crf
.............\.......\...\stm32f10x_pwr.d
.............\.......\...\stm32f10x_pwr.o
.............\.......\...\stm32f10x_rcc.crf
.............\.......\...\stm32f10x_rcc.d
.............\.......\...\stm32f10x_rcc.o
.............\.......\...\stm32f10x_rtc.crf
.............\.......\...\stm32f10x_rtc.d
.............\.......\...\stm32f10x_rtc.o
.............\.......\...\stm32f10x_spi.crf
.............\.......\...\stm32f10x_spi.d
.............\.......\...\stm32f10x_spi.o
.............\.......\...\stm32f10x_tim.crf
.............\.......\...\stm32f10x_tim.d
.............\.......\...\stm32f10x_tim.o
.............\.......\...\stm32f10x_usart.crf
.............\.......\...\stm32f10x_usart.d
.............\.......\...\stm32f10x_usart.o
.............\.......\...\sys.crf
.............\.......\...\sys.d
.............\.......\...\sys.o
.............\.......\...\system_stm32f10x.crf
.............\.......\...\system_stm32f10x.d
.............\.......\...\system_stm32f10x.o
.............\.......\...\timer.crf

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