hc-sr501 stm32f103c8t6
时间: 2023-09-17 22:13:23 浏览: 45
The HC-SR501 is a passive infrared motion sensor module, while the STM32F103C8T6 is a microcontroller based on the ARM Cortex-M3 core. The HC-SR501 can detect motion by sensing changes in infrared radiation in its field of view, and it can output a digital signal that can be read by the STM32F103C8T6. The STM32F103C8T6 can then process this signal and use it to control other devices or perform other tasks. For example, it can turn on a light when motion is detected, or it can send an alert message to a smartphone app. The two components can be connected using a variety of interfaces, such as GPIO pins or serial communication protocols.
相关问题
stm32f103c8t6接hc-sr501
stm32f103c8t6是一款低功耗、高性能、容易使用的ARM Cortex-M3微控制器。它是STM32家族中的一员,具有64KB闪存、20KB SRAM和一个72 MHz的时钟频率。
HC-SR501是一款基于红外技术的人体红外感应模块,常用于人体感应控制等领域。
接入HC-SR501模块时,需注意以下几点:
1. HC-SR501模块的电源工作电压为4.5V-20V,因此需要选择合适的VCC电源。STM32f103c8t6的VCC工作电压为3.3V,因此需要使用稳压电路将VCC电源转换为3.3V。
2. HC-SR501模块的数据输出口为3.3V/5V TTL级,与STM32f103c8t6的IO口兼容。因此,可将HC-SR501的输出数据接到STM32f103c8t6的任意一个IO口。
3. HC-SR501模块的探测距离和探测角度可通过电位器进行调节。建议在使用HC-SR501模块时,将探测距离和探测角度调节到合适的范围,以节省电源。
4. 在使用HC-SR501模块时,需注意防静电,建议在操作时接地或使用防静电手环等器材。
总的来说,STM32f103c8t6和HC-SR501模块可以很好地兼容使用,可以实现人体感应控制等多种应用场景。
基于stm32f103c8t6 hc-sr501
基于STM32F103C8T6最小系统板驱动HC-SR501红外人体传感模块的方法如下:
1. 首先,需要在CubeMX中配置PA1引脚为输入模式,并使能GPIOA时钟。
2. 在代码中使用HAL库的GPIO读取PA1引脚的电平状态,即可获取HC-SR501模块输出的人体检测信号。
3. 可以根据读取到的人体检测信号状态来控制其他模块的工作,例如控制LED灯亮灭等。
示例代码如下:
```c
#include "main.h"
#include "stm32f1xx_hal.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
TIM_HandleTypeDef htim2;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
GPIO_PinState sensorState;
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_TIM2_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_Base_Start(&htim2);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
sensorState = HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_1);
if(sensorState == GPIO_PIN_SET)
{
// 人体检测到信号
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_SET); // 点亮LED灯
HAL_Delay(1000); // 延时1秒
}
else
{
// 人体未检测到信号
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET); // 熄灭LED灯
}
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
}
/**
* @brief TIM2 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM2_Init(void)
{
/* USER CODE BEGIN TIM2_Init 0 */
/* USER CODE END TIM2_Init 0 */
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM2_Init 1 */
/* USER CODE END TIM2_Init 1 */
htim2.Instance = TIM2;
htim2.Init.Prescaler = 7199;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 999;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM2_Init 2 */
/* USER CODE END TIM2_Init 2 */
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);
/*Configure GPIO pin : PA1 */
GPIO_InitStruct.Pin = GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pin : PC13 */
GPIO_InitStruct.Pin = GPIO_PIN_13;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
}
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Error_Handler_Debug */
}
/**
* @brief This function is executed in case of hard fault occurrence.
* @retval None
*/
void HardFault_Handler(void)
{
/* USER CODE BEGIN HardFault_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END HardFault_Handler_Debug */
}
/**
* @brief This function is executed in case of Memory Manage error occurrence.
* @retval None
*/
void MemManage_Handler(void)
{
/* USER CODE BEGIN MemManage_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END MemManage_Handler_Debug */
}
/**
* @brief This function is executed in case of Prefetch error occurrence.
* @retval None
*/
void Prefetch_Fault_Handler(void)
{
/* USER CODE BEGIN Prefetch_Fault_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Prefetch_Fault_Handler_Debug */
}
/**
* @brief This function is executed in case of Undefined Instruction error occurrence.
* @retval None
*/
void Undefined_Handler(void)
{
/* USER CODE BEGIN Undefined_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END Undefined_Handler_Debug */
}
/**
* @brief This function is executed in case of System Service call error occurrence.
* @retval None
*/
void SVC_Handler(void)
{
/* USER CODE BEGIN SVC_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END SVC_Handler_Debug */
}
/**
* @brief This function is executed in case of Debug Monitor error occurrence.
* @retval None
*/
void DebugMon_Handler(void)
{
/* USER CODE BEGIN DebugMon_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END DebugMon_Handler_Debug */
}
/**
* @brief This function is executed in case of PendSVC exception occurrence.
* @retval None
*/
void PendSV_Handler(void)
{
/* USER CODE BEGIN PendSV_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
while(1)
{
}
/* USER CODE END PendSV_Handler_Debug */
}
/**
* @brief This function is executed in case of SysTick timer interrupt.
* @retval None
*/
void SysTick_Handler(void)
{
/* USER CODE BEGIN SysTick_Handler_Debug */
/* USER CODE END SysTick_Handler_Debug */
}
```