Measure the concentration of carbon monoxide with stm32 and mq-7 sensors and display them with serial assistants

STM32F10X
.........\Gas Sensor
.........\..........\Lib
.........\..........\...\cmsis
.........\..........\...\.....\core_cm3.c
.........\..........\...\.....\core_cm3.h
.........\..........\...\.....\stm32f10x.h
.........\..........\...\.....\system_stm32f10x.h
.........\..........\...\inc
.........\..........\...\...\misc.h
.........\..........\...\...\stm32f10x_adc.h
.........\..........\...\...\stm32f10x_bkp.h
.........\..........\...\...\stm32f10x_can.h
.........\..........\...\...\stm32f10x_cec.h
.........\..........\...\...\stm32f10x_crc.h
.........\..........\...\...\stm32f10x_dac.h
.........\..........\...\...\stm32f10x_dbgmcu.h
.........\..........\...\...\stm32f10x_dma.h
.........\..........\...\...\stm32f10x_exti.h
.........\..........\...\...\stm32f10x_flash.h
.........\..........\...\...\stm32f10x_fsmc.h
.........\..........\...\...\stm32f10x_gpio.h
.........\..........\...\...\stm32f10x_i2c.h
.........\..........\...\...\stm32f10x_iwdg.h
.........\..........\...\...\stm32f10x_pwr.h
.........\..........\...\...\stm32f10x_rcc.h
.........\..........\...\...\stm32f10x_rtc.h
.........\..........\...\...\stm32f10x_sdio.h
.........\..........\...\...\stm32f10x_spi.h
.........\..........\...\...\stm32f10x_tim.h
.........\..........\...\...\stm32f10x_usart.h
.........\..........\...\...\stm32f10x_wwdg.h
.........\..........\...\src
.........\..........\...\...\misc.c
.........\..........\...\...\stm32f10x_adc.c
.........\..........\...\...\stm32f10x_bkp.c
.........\..........\...\...\stm32f10x_can.c
.........\..........\...\...\stm32f10x_cec.c
.........\..........\...\...\stm32f10x_crc.c
.........\..........\...\...\stm32f10x_dac.c
.........\..........\...\...\stm32f10x_dbgmcu.c
.........\..........\...\...\stm32f10x_dma.c
.........\..........\...\...\stm32f10x_exti.c
.........\..........\...\...\stm32f10x_flash.c
.........\..........\...\...\stm32f10x_fsmc.c
.........\..........\...\...\stm32f10x_gpio.c
.........\..........\...\...\stm32f10x_i2c.c
.........\..........\...\...\stm32f10x_iwdg.c
.........\..........\...\...\stm32f10x_pwr.c
.........\..........\...\...\stm32f10x_rcc.c
.........\..........\...\...\stm32f10x_rtc.c
.........\..........\...\...\stm32f10x_sdio.c
.........\..........\...\...\stm32f10x_spi.c
.........\..........\...\...\stm32f10x_tim.c
.........\..........\...\...\stm32f10x_usart.c
.........\..........\...\...\stm32f10x_wwdg.c
.........\..........\...\startup
.........\..........\...\.......\arm
.........\..........\...\.......\...\startup_stm32f10x_cl.s
.........\..........\...\.......\...\startup_stm32f10x_hd.s
.........\..........\...\.......\...\startup_stm32f10x_hd_vl.s
.........\..........\...\.......\...\startup_stm32f10x_ld.s
.........\..........\...\.......\...\startup_stm32f10x_ld_vl.s
.........\..........\...\.......\...\startup_stm32f10x_md.s
.........\..........\...\.......\...\startup_stm32f10x_md_vl.s
.........\..........\...\.......\...\startup_stm32f10x_xl.s
.........\..........\MDK_Project
.........\..........\...........\JLinkSettings.ini
.........\..........\...........\List
.........\..........\...........\....\Project.map
.........\..........\...........\....\startup_stm32f10x_cl.lst
.........\..........\...........\....\startup_stm32f10x_hd.lst
.........\..........\...........\Out
.........\..........\...........\...\Project.htm
.........\..........\...........\Project.uvopt
.........\..........\...........\Project.uvproj
.........\..........\User
.........\..........\....\main.c
.........\..........\....\stm32f10x_conf.h
.........\..........\....\stm32f10x_it.c
.........\..........\....\stm32f10x_it.h
.........\..........\....\system_stm32f10x.c
.........\..........\....\SysTick
.........\..........\....\.......\systick.c
.........\..........\....\.......\systick.h
.........\..........\....\USART
.........\..........\....\.....\usart.c
.........\..........\....\.....\usart.h

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