帮我用keil5写一个stm32f103c8t6+烟雾传感器的代码
时间: 2023-08-31 14:09:36 浏览: 92
好的,以下是基于Keil5的STM32F103C8T6+烟雾传感器的代码:
```c
#include "stm32f10x.h"
#define SMOKE_SENSOR_PIN GPIO_Pin_0
#define SMOKE_SENSOR_PORT GPIOA
void GPIO_Configuration(void);
void ADC_Configuration(void);
void Delay(__IO uint32_t nCount);
int main(void)
{
uint16_t smoke_value;
GPIO_Configuration();
ADC_Configuration();
while(1)
{
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC));
smoke_value = ADC_GetConversionValue(ADC1);
if(smoke_value > 1000) // 检测到烟雾
{
// 做出相应的处理,例如报警、打开风扇等
}
Delay(0xFFFFF);
}
}
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = SMOKE_SENSOR_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(SMOKE_SENSOR_PORT, &GPIO_InitStructure);
}
void ADC_Configuration(void)
{
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = DISABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
ADC_Cmd(ADC1, ENABLE);
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
}
void Delay(__IO uint32_t nCount)
{
for(; nCount != 0; nCount--);
}
```
该代码主要是利用了STM32F103C8T6内部的ADC模块来读取烟雾传感器的模拟信号,并通过比较得到是否检测到烟雾,从而做出相应的处理。需要注意的是,在接线时需要将烟雾传感器的输出引脚连接到微控制器的模拟输入引脚。