stm32f103c8t6控制雨滴传感器显示数据在lcd上

首先，需要连接STM32F103C8T6和LCD和雨滴传感器。

接下来，使用STM32CubeMX进行配置，并生成代码。

使用模拟输入读取传感器数据，并使用LCD显示。

以下是示例代码，仅供参考：

#include "main.h"
#include "dwt_delay.h"
#include "lcd.h"

#define SENSOR_PIN GPIO_PIN_0
#define SENSOR_PORT GPIOA
#define LCD_ADDR 0x27
#define LCD_ROWS 2
#define LCD_COLS 16

void SystemClock_Config(void);
static void MX_GPIO_Init(void);

int main(void) {
  HAL_Init();
  SystemClock_Config();
  MX_GPIO_Init();
  DWT_Delay_Init();
  LCD_Init(LCD_ADDR, LCD_ROWS, LCD_COLS);
  while (1) {
    int sensor_value = HAL_GPIO_ReadPin(SENSOR_PORT, SENSOR_PIN);
    char str[17];
    sprintf(str, "Sensor: %d", sensor_value);
    LCD_Clear();
    LCD_SetCursor(0, 0);
    LCD_Print(str);
    DWT_Delay_ms(1000);
  }
}

void SystemClock_Config(void) {
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
  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();
  }
  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();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB | RCC_PERIPHCLK_ADC12 | RCC_PERIPHCLK_ADC34 | RCC_PERIPHCLK_I2C1;
  PeriphClkInit.Adc12ClockSelection = RCC_ADC12PLLCLK_DIV1;
  PeriphClkInit.Adc34ClockSelection = RCC_ADC34PLLCLK_DIV1;
  PeriphClkInit.I2c1ClockSelection = RCC_I2C1CLKSOURCE_HSI;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) {
    Error_Handler();
  }
}

static void MX_GPIO_Init(void) {
  GPIO_InitTypeDef GPIO_InitStruct = {0};
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOC_CLK_ENABLE();
  HAL_GPIO_WritePin(GPIOC, GPIO_PIN_13, GPIO_PIN_RESET);
  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);
  GPIO_InitStruct.Pin = SENSOR_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(SENSOR_PORT, &GPIO_InitStruct);
}

需要注意的是，需要在CubeMX中打开I2C功能，并在LCD_Init中传递正确的I2C地址。

这只是一个简单的示例，需要根据具体情况进行修改和调整。