stm32五路灰度传感器代码
时间: 2023-07-02 20:05:42 浏览: 323
下面是一个基于STM32的五路灰度传感器代码,可以通过ADC读取每个传感器的值:
```c
#include "stm32f10x.h"
#define NUM_SENSORS 5 //传感器数量
#define THRESHOLD 500 //阈值
uint16_t sensorValues[NUM_SENSORS];
void init_ADC(void);
void read_sensors(void);
int main(void)
{
init_ADC();
while (1)
{
read_sensors();
//处理传感器数据
for (int i = 0; i < NUM_SENSORS; i++)
{
if (sensorValues[i] < THRESHOLD)
//传感器i检测到黑色
else
//传感器i未检测到黑色
}
}
}
void init_ADC(void)
{
//初始化GPIO和ADC
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = NUM_SENSORS;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_Cmd(ADC1, ENABLE);
//校准ADC
ADC_ResetCalibration(ADC1);
while (ADC_GetResetCalibrationStatus(ADC1))
;
ADC_StartCalibration(ADC1);
while (ADC_GetCalibrationStatus(ADC1))
;
}
void read_sensors(void)
{
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 4, ADC_SampleTime_55Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SampleTime_55Cycles5);
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
while (ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET)
;
for (int i = 0; i < NUM_SENSORS; i++)
{
sensorValues[i] = ADC_GetConversionValue(ADC1);
}
}
```
这个代码使用了ADC(模数转换器)来读取每个传感器的值,并将结果存储在一个数组中。然后,可以根据每个传感器的值来确定它是否检测到了黑色表面。请注意,阈值需要根据您的具体情况进行调整。
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