STM32F103RCT6 SHT10驱动程序 STM32 HAL库

以下是一个简单的 SHT10 温湿度传感器的驱动程序，基于 STM32 HAL 库：

#include "stm32f1xx_hal.h"

#define SHT10_DATA_PIN  GPIO_PIN_0
#define SHT10_DATA_PORT GPIOA
#define SHT10_CLK_PIN   GPIO_PIN_1
#define SHT10_CLK_PORT  GPIOA

#define SHT10_CMD_MEASURE_TEMP 0b00000011
#define SHT10_CMD_MEASURE_HUMI 0b00000101
#define SHT10_CMD_READ_STATUS  0b00000111
#define SHT10_CMD_SOFT_RESET   0b00011110

void SHT10_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct;

  __HAL_RCC_GPIOA_CLK_ENABLE();

  GPIO_InitStruct.Pin   = SHT10_DATA_PIN | SHT10_CLK_PIN;
  GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
  HAL_GPIO_Init(SHT10_DATA_PORT, &GPIO_InitStruct);

  HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);
  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);

  HAL_Delay(11);

  SHT10_SendCommand(SHT10_CMD_SOFT_RESET);
}

void SHT10_SendByte(uint8_t data)
{
  uint8_t i;

  for (i = 0; i < 8; i++)
  {
    if (data & 0x80)
    {
      HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);
    }
    else
    {
      HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_RESET);
    }

    data <<= 1;

    HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);
    HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);
  }

  HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);

  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);
  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);
}

uint8_t SHT10_ReadByte(uint8_t ack)
{
  uint8_t i, data = 0;

  HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);

  for (i = 0; i < 8; i++)
  {
    HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);

    data <<= 1;

    if (HAL_GPIO_ReadPin(SHT10_DATA_PORT, SHT10_DATA_PIN))
    {
      data |= 0x01;
    }

    HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);
  }

  if (ack)
  {
    HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_RESET);
  }

  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);
  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);

  HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);

  return data;
}

void SHT10_SendCommand(uint8_t cmd)
{
  uint8_t i;

  HAL_GPIO_WritePin(SHT10_DATA_PORT, SHT10_DATA_PIN, GPIO_PIN_SET);
  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);

  SHT10_SendByte(cmd);
  
  for (i = 0; i < 100; i++)
  {
    HAL_Delay(1);

    if (HAL_GPIO_ReadPin(SHT10_DATA_PORT, SHT10_DATA_PIN) == GPIO_PIN_RESET)
    {
      break;
    }
  }

  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_SET);
  HAL_GPIO_WritePin(SHT10_CLK_PORT, SHT10_CLK_PIN, GPIO_PIN_RESET);
}

uint16_t SHT10_ReadData(uint8_t cmd)
{
  uint16_t data;

  SHT10_SendCommand(cmd);

  data = SHT10_ReadByte(1);

  data <<= 8;
  data |= SHT10_ReadByte(0);

  return data;
}

float SHT10_ReadTemperature(void)
{
  uint16_t raw = SHT10_ReadData(SHT10_CMD_MEASURE_TEMP);

  return -39.7 + 0.01 * (float)raw;
}

float SHT10_ReadHumidity(void)
{
  uint16_t raw = SHT10_ReadData(SHT10_CMD_MEASURE_HUMI);

  return -4.0 + 0.0405 * (float)raw + (-0.0000028) * (float)raw * (float)raw;
}

使用方法：

1. 在 `main()` 函数中调用 `SHT10_Init()` 进行初始化。
2. 调用 `SHT10_ReadTemperature()` 和 `SHT10_ReadHumidity()` 分别读取温度和湿度。

注意事项：

1. 该程序使用的是 SHT10 的标准通信协议，如果你使用的是其它版本的 SHT10，可能需要修改部分代码。
2. 通信速率较慢，最好在单次读取后加入适当的延时，以确保数据的准确性。