基于STM32HAL库读取出的温度通过广和通通讯模组L610通过mqtt上传腾讯云的代码

以下是基于STM32HAL库读取温度并通过广和通通讯模组L610上传到腾讯云的示例代码：

#include "main.h"
#include "stdio.h"
#include "stdlib.h"
#include "string.h"

#include "mqtt_client.h"
#include "mqtt_interface.h"
#include "mqtt_wrapper.h"

#define MQTT_HOST       "mqtt://your-mqtt-host"
#define MQTT_PORT       1883
#define MQTT_USER       "your-mqtt-username"
#define MQTT_PASSWORD   "your-mqtt-password"
#define MQTT_CLIENT_ID  "your-mqtt-client-id"

#define TOPIC           "your-mqtt-topic"

#define TEMP_SENSOR_PIN GPIO_PIN_0
#define TEMP_SENSOR_PORT GPIOA

ADC_HandleTypeDef hadc1;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_ADC1_Init(void);

float get_temperature(void);
void mqtt_callback(mqtt_client_t *client, mqtt_event_t event, void *user_data);

int main(void)
{
    HAL_Init();
    SystemClock_Config();
    MX_GPIO_Init();
    MX_ADC1_Init();

    mqtt_client_t client = {0};
    mqtt_network_t network = {0};
    mqtt_init(&client, &network, MQTT_HOST, MQTT_PORT, mqtt_callback, NULL);

    mqtt_connect(&client, MQTT_USER, MQTT_PASSWORD, MQTT_CLIENT_ID, 0, 0);

    while (1)
    {
        float temperature = get_temperature();

        char payload[50];
        snprintf(payload, 50, "%.2f", temperature);

        mqtt_publish(&client, TOPIC, QOS0, (uint8_t *)payload, strlen(payload), 0);

        HAL_Delay(1000);
    }
}

void mqtt_callback(mqtt_client_t *client, mqtt_event_t event, void *user_data)
{
    // handle mqtt events
}

float get_temperature(void)
{
    uint16_t adc_value;
    float temperature;

    HAL_ADC_Start(&hadc1);
    if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK)
    {
        adc_value = HAL_ADC_GetValue(&hadc1);
    }
    HAL_ADC_Stop(&hadc1);

    temperature = (float)adc_value * 3.3f / 4096.0f;
    temperature = (temperature - 0.76f) / 0.0025f;

    return temperature;
}

static void MX_ADC1_Init(void)
{
    ADC_ChannelConfTypeDef sConfig = {0};

    __HAL_RCC_ADC1_CLK_ENABLE();

    hadc1.Instance = ADC1;
    hadc1.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
    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();
    }

    sConfig.Channel = ADC_CHANNEL_0;
    sConfig.Rank = ADC_REGULAR_RANK_1;
    sConfig.SamplingTime = ADC_SAMPLETIME_239CYCLES_5;
    if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
    {
        Error_Handler();
    }
}

static void MX_GPIO_Init(void)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};

    __HAL_RCC_GPIOA_CLK_ENABLE();

    GPIO_InitStruct.Pin = TEMP_SENSOR_PIN;
    GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    HAL_GPIO_Init(TEMP_SENSOR_PORT, &GPIO_InitStruct);
}

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_HSI;
    RCC_OscInitStruct.HSIState = RCC_HSI_ON;
    RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
    RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
    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_HSI;
    RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
    RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
    RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

    if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
    {
        Error_Handler();
    }
}

代码中使用了MQTT协议库，需要下载并添加到项目中。您可以从此处获取MQTT协议库：https://github.com/256dpi/arduino-mqtt

此外，还需要根据您自己的腾讯云账户信息修改代码中的MQTT_HOST，MQTT_USER，MQTT_PASSWORD和TOPIC等参数。

注意：此示例代码仅供参考，实际应用中需要根据具体情况进行修改和优化。