【2024-RSOC】DAY5-软件包

发布于 2024-07-31 22:58:41 浏览：260 订阅该版

#使用软件包上云

```c
static int example_publish(void *handle)
{
    int             res = 0;
    const char     *fmt = "/sys/%s/%s/thing/event/property/post";
    char           *topic = NULL;
    int             topic_len = 0;
    char           *payload = "{\"params\":{\"temp\":30}}";

topic_len = strlen(fmt) + strlen(DEMO_PRODUCT_KEY) + strlen(DEMO_DEVICE_NAME) + 1;
    topic = HAL_Malloc(topic_len);
    if (topic == NULL) {
        EXAMPLE_TRACE("memory not enough");
        return -1;
    }
    memset(topic, 0, topic_len);
    HAL_Snprintf(topic, topic_len, fmt, DEMO_PRODUCT_KEY, DEMO_DEVICE_NAME);

res = IOT_MQTT_Publish_Simple(0, topic, IOTX_MQTT_QOS0, payload, strlen(payload));
    if (res < 0) {
        EXAMPLE_TRACE("publish failed, res = %d", res);
        HAL_Free(topic);
        return -1;
    }

HAL_Free(topic);
    return 0;
}
```
##效果
![1722436049512.png](https://oss-club.rt-thread.org/uploads/20240731/ce28d58704904931506e0faa8165a4d0.png)

#文件系统组件

![文件系统开关5.png](https://oss-club.rt-thread.org/uploads/20240801/625d90c6d47c025c320aa53b210bc801.png)
![文件系统开关4-17219038007055.png](https://oss-club.rt-thread.org/uploads/20240801/d61c80b64cf507fcb380e3429ad9c832.png)
![文件系统开关4-17219037926974.png](https://oss-club.rt-thread.org/uploads/20240801/d61c80b64cf507fcb380e3429ad9c832.png)
![文件系统开关4.png](https://oss-club.rt-thread.org/uploads/20240801/d61c80b64cf507fcb380e3429ad9c832.png)
![文件系统开关3-17219036284683.png](https://oss-club.rt-thread.org/uploads/20240801/bcfcd2bb0ab970c2db0a397ce2a34e27.png)
![文件系统开关3.png](https://oss-club.rt-thread.org/uploads/20240801/bcfcd2bb0ab970c2db0a397ce2a34e27.png)
![文件系统开关2-17219035761332.png](https://oss-club.rt-thread.org/uploads/20240801/6a0d8f4ee14f568fa8c032e761147221.png)
![文件系统开关2.png](https://oss-club.rt-thread.org/uploads/20240801/6a0d8f4ee14f568fa8c032e761147221.png)
![文件系统开关1-17219035200901.png](https://oss-club.rt-thread.org/uploads/20240801/f512f1cf85ef8b55ab9225371eca6c71.png)
![文件系统开关1.png](https://oss-club.rt-thread.org/uploads/20240801/f512f1cf85ef8b55ab9225371eca6c71.png)

#效果演示

![133e3f83d46c6954e02b31b453f1ba5.png](https://oss-club.rt-thread.org/uploads/20240801/a4642f267e721a6819e7948b9b5bbee7.png)