基于华为云IoT平台实现多节点温度采集(STM32+NBIOT)

#include <stdint.h>
#include <stdbool.h>
#include "stm32f1xx_hal.h"
#include "bc95-g.h"
#include "ds18b20.h"
#include "huawei_iot.h"

// 温度采集结果结构体
typedef struct {
    float temperature; // 温度值
    uint8_t node_id; // 节点ID
} temperature_data_t;

// 数据上传结果结构体
typedef struct {
    bool upload_success; // 上传成功标志
    char error_message[20]; // 上传错误信息
} upload_result_t;

// 温度采集函数
temperature_data_t temperature_collection(void) {
    // 初始化DS18B20温度传感器
    DS18B20_Init();
    // 读取温度数据
    float temperature = DS18B20_Read_Temperature();
    // 将温度数据转换为数字信号
    uint8_t node_id = 1; // 节点ID
    temperature_data_t temperature_data;
    temperature_data.temperature = temperature;
    temperature_data.node_id = node_id;
    return temperature_data;
}

// 数据上传函数
upload_result_t upload_data(temperature_data_t temperature_data) {
    // 初始化NBIOT模块
    BC95_G_Init();
    // 设置APN和用户名密码
    BC95_G_SetAPN("CMNET");
    BC95_G_SetUsernameAndPassword("username", "password");
    // 连接到华为云IOT平台
    BC95_G_Connect();
    // 上传温度数据
    char upload_data[20];
    sprintf(upload_data, "{\"temperature\":%f,\"node_id\":%d}", temperature_data.temperature, temperature_data.node_id);
    bool upload_success = BC95_G_UploadData(upload_data);
    upload_result_t upload_result;
    upload_result.upload_success = upload_success;
    if (!upload_success) {
        strcpy(upload_result.error_message, "Upload failed");
    } else {
        strcpy(upload_result.error_message, "Upload success");
    }
    return upload_result;
}

int main(void) {
    // Initialize STM32 microcontroller
    HAL_Init();

    // Initialize DS18B20 temperature sensor
    DS18B20_Init();

    // Initialize NBIOT module
    BC95_G_Init();

    // Set APN and username password
    BC95_G_SetAPN("CMNET");
    BC95_G_SetUsernameAndPassword("username", "password");

    // Connect to Huawei IOT platform
    BC95_G_Connect();

    // Main loop
    while (1) {
        // Temperature collection
        temperature_data_t temperature_data = temperature_collection();

        // Upload data
        upload_result_t upload_result = upload_data(temperature_data);

        // Print upload result
        printf("Upload result: %s\r\n", upload_result.error_message);

        // Delay for 1 minute
        HAL_Delay(60000);
    }
}