stm32f103c8t6控制雨滴传感器并显示数据在LCD上的代码

这里给出一个基于STM32F103C8T6控制雨滴传感器并显示数据在LCD上的代码，具体实现如下：

#include "stm32f10x.h"
#include "delay.h"
#include "lcd.h"

#define RAIN_SENSOR_PIN GPIO_Pin_0
#define RAIN_SENSOR_PORT GPIOA

int main(void)
{
    GPIO_InitTypeDef GPIO_InitStruct;
    ADC_InitTypeDef ADC_InitStruct;
    TIM_TimeBaseInitTypeDef TIM_InitStruct;
    TIM_OCInitTypeDef TIM_OCInitStruct;

    // 初始化系统时钟
    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1 | RCC_APB2Periph_AFIO | RCC_APB2Periph_TIM1 | RCC_APB2Periph_TIM16, ENABLE);
    RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
    SystemInit();

    // 初始化GPIOA
    GPIO_InitStruct.GPIO_Pin = RAIN_SENSOR_PIN;
    GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AIN;
    GPIO_Init(RAIN_SENSOR_PORT, &GPIO_InitStruct);

    // 初始化ADC1
    ADC_InitStruct.ADC_Mode = ADC_Mode_Independent;
    ADC_InitStruct.ADC_ScanConvMode = DISABLE;
    ADC_InitStruct.ADC_ContinuousConvMode = ENABLE;
    ADC_InitStruct.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
    ADC_InitStruct.ADC_DataAlign = ADC_DataAlign_Right;
    ADC_InitStruct.ADC_NbrOfChannel = 1;
    ADC_Init(ADC1, &ADC_InitStruct);
    ADC_Cmd(ADC1, ENABLE);

    // 配置ADC通道
    ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_55Cycles5);

    // 初始化TIM1
    TIM_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_InitStruct.TIM_Prescaler = 7200 - 1;
    TIM_InitStruct.TIM_Period = 10000 - 1;
    TIM_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseInit(TIM1, &TIM_InitStruct);

    // 初始化TIM1 OC通道
    TIM_OCInitStruct.TIM_OCMode = TIM_OCMode_PWM1;
    TIM_OCInitStruct.TIM_OutputState = TIM_OutputState_Enable;
    TIM_OCInitStruct.TIM_OCPolarity = TIM_OCPolarity_Low;
    TIM_OCInitStruct.TIM_Pulse = 5000;
    TIM_OC1Init(TIM1, &TIM_OCInitStruct);
    TIM_Cmd(TIM1, ENABLE);

    // 初始化TIM2
    TIM_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_InitStruct.TIM_Prescaler = 7200 - 1;
    TIM_InitStruct.TIM_Period = 10000 - 1;
    TIM_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseInit(TIM2, &TIM_InitStruct);

    // 启用TIM2中断
    TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);
    NVIC_EnableIRQ(TIM2_IRQn);

    // 初始化TIM16
    TIM_InitStruct.TIM_CounterMode = TIM_CounterMode_Up;
    TIM_InitStruct.TIM_Prescaler = 7200 - 1;
    TIM_InitStruct.TIM_Period = 10000 - 1;
    TIM_InitStruct.TIM_ClockDivision = TIM_CKD_DIV1;
    TIM_TimeBaseInit(TIM16, &TIM_InitStruct);

    // 启用TIM16中断
    TIM_ITConfig(TIM16, TIM_IT_Update, ENABLE);
    NVIC_EnableIRQ(TIM1_UP_TIM16_IRQn);

    // 初始化LCD
    LCD_Init();

    while (1)
    {
        // 等待中断触发
    }
}

void TIM2_IRQHandler(void)
{
    if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)
    {
        TIM_ClearITPendingBit(TIM2, TIM_IT_Update);

        // 启动ADC转换
        ADC_SoftwareStartConvCmd(ADC1, ENABLE);
    }
}

void TIM1_UP_TIM16_IRQHandler(void)
{
    if (TIM_GetITStatus(TIM16, TIM_IT_Update) != RESET)
    {
        TIM_ClearITPendingBit(TIM16, TIM_IT_Update);

        // 读取ADC值
        uint16_t adc_value = ADC_GetConversionValue(ADC1);

        // 显示ADC值
        char adc_str[5];
        sprintf(adc_str, "%d", adc_value);
        LCD_ShowString(0, 0, adc_str);

        // 控制LED
        if (adc_value > 500)
        {
            GPIO_SetBits(GPIOC, GPIO_Pin_13);
        }
        else
        {
            GPIO_ResetBits(GPIOC, GPIO_Pin_13);
        }
    }
}

上述代码主要实现的功能是：通过定时器2触发ADC转换，然后通过定时器16的中断处理函数读取ADC值，并将其显示在LCD上，同时根据ADC值控制LED的亮灭。其中，定时器1用于控制PWM输出，定时器2和定时器16分别用于触发ADC转换和读取ADC值。需要注意的是，此代码中使用的是PA0引脚作为雨滴传感器输入，如果使用其他引脚，需要对应修改代码。