基于STM32HAL库数字引脚直接读取出的温度通过广和通通讯模组L610运用串口打印AT指令上传腾讯云的代码

以下是基于 STM32HAL 库数字引脚直接读取出的温度通过广和通通讯模组 L610 运用串口打印 AT 指令上传腾讯云的代码示例：

#include "stm32f4xx_hal.h"
#include <string.h>
#include <stdio.h>

/* UART handler declaration */
UART_HandleTypeDef huart2;

/* GPIO Pin declaration */
#define TEMP_GPIO_PORT GPIOA
#define TEMP_GPIO_PIN GPIO_PIN_0

/* Variables declaration */
uint16_t adc_value;
float temperature;

/* Function declaration */
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
static void MX_ADC1_Init(void);

/* Main function */
int main(void)
{
  /* MCU Configuration----------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* Configure the system clock */
  SystemClock_Config();

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_USART2_UART_Init();
  MX_ADC1_Init();

  /* Infinite loop */
  while (1)
  {
    /* Start ADC conversion */
    HAL_ADC_Start(&hadc1);

    /* Wait for the conversion to complete */
    if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK)
    {
      /* Read the ADC converted value */
      adc_value = HAL_ADC_GetValue(&hadc1);

      /* Calculate temperature */
      temperature = (float)(adc_value * 3.3 / 4095.0 - 0.76) / 0.0025 + 25.0;

      /* Print temperature to UART */
      char temp_str[30];
      sprintf(temp_str, "Temperature: %.2f °C\n", temperature);
      HAL_UART_Transmit(&huart2, (uint8_t *)temp_str, strlen(temp_str), HAL_MAX_DELAY);

      /* Upload temperature to Tencent Cloud */
      char at_cmd[50];
      sprintf(at_cmd, "AT+TCIOTTXDATA=\"Temperature\",\"%.2f\"\r\n", temperature);
      HAL_UART_Transmit(&huart2, (uint8_t *)at_cmd, strlen(at_cmd), HAL_MAX_DELAY);
      HAL_Delay(1000);
    }

    /* Stop ADC conversion */
    HAL_ADC_Stop(&hadc1);
  }
}

/* ADC1 Initialization Function */
static void MX_ADC1_Init(void)
{
  ADC_ChannelConfTypeDef sConfig = {0};

  /* Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) */
  hadc1.Instance = ADC1;
  hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV2;
  hadc1.Init.Resolution = ADC_RESOLUTION_12B;
  hadc1.Init.ScanConvMode = DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
  hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.NbrOfConversion = 1;
  hadc1.Init.DMAContinuousRequests = DISABLE;
  hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }

  /* Configure the selected ADC channel */
  sConfig.Channel = ADC_CHANNEL_0;
  sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
  sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USART2 Initialization Function */
static void MX_USART2_UART_Init(void)
{
  /* USART2 parameter configuration*/
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 115200;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* GPIO Initialization Function */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin : TEMP_GPIO_PIN */
  GPIO_InitStruct.Pin = TEMP_GPIO_PIN;
  GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(TEMP_GPIO_PORT, &GPIO_InitStruct);
}

/* System Clock Configuration */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  __HAL_RCC_PWR_CLK_ENABLE();
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLM = 16;
  RCC_OscInitStruct.PLL.PLLN = 336;
  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
  RCC_OscInitStruct.PLL.PLLQ = 7;
  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_DIV4;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK)
  {
    Error_Handler();
  }
}

/* Error Handler */
void Error_Handler(void)
{
  /* User can add his own implementation to report the HAL error return state */
  while (1)
  {
  }
}

#ifdef USE_FULL_ASSERT
/* Assert function */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* User can add his own implementation to report the file name and line number */
  while (1)
  {
  }
}
#endif /* USE_FULL_ASSERT */

在上述代码中，我们使用了 STM32F4 的 ADC 模块读取了一个温度传感器的模拟电压值，并通过一定的计算得到了温度值。然后我们使用了串口2将温度值打印出来，并通过广和通 L610 模组的 AT 指令将温度值上传到了腾讯云平台。需要注意的是，在使用 L610 模组时需要先进行初始化，并设置好串口的波特率等参数。

希望这段示例代码能够对你有所帮助。