> For the complete documentation index, see [llms.txt](https://docs.yudash.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.yudash.com/pf/ct.md).

# Cloud Telemetry

Cloud Telemetry defines how data acquired by a YuDash device is transmitted to an **IoT platform, enterprise cloud, on-premise server or other remote application**.

This section covers the **cloud-facing side** of the YuDash IoT data path — from the data logger to the receiving platform or server.

### Understanding the Telemetry Path

The diagram shows the cloud telemetry path from **sensor values to the receiving server or cloud platform**. YuDash first acquires the field data, forms the required payload, and then transmits it through an available network using the selected cloud protocol.

The underlying network may be **Ethernet/LAN, 4G/LTE, Wi-Fi or another supported IP connection**. Network configuration is covered separately under **Network**.

```mermaid
flowchart BT

    A[Sensor Values]
    B[YuDash Data Logger]

    subgraph P[Payload Formation]
        P0[Structured Payload]
        P1[JSON]
        P2[Text / CSV]
    end

    subgraph N[Network]
        N0[Available Network]
        N1[Ethernet / LAN]
        N2[4G / LTE]
        N3[Wi-Fi]
        N4[Other Network]
    end

    subgraph T[Telemetry Protocol]
        T0[Available Protocol]
        T1[MQTT]
        T2[HTTP / HTTPS]
        T3[FTP]
    end

    S[Receiving Server / Cloud Platform]

    A --> B --> P0 --> N0 --> T0 --> S
```

### Cloud Protocols

YuDash supports multiple standard protocols for sending data to external servers and IoT platforms.

In cloud telemetry, the **YuDash device acts as the client/data sender**. It initiates the communication and sends data to the configured broker, server or endpoint.

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Publish telemetry data to a configured MQTT broker.</td><td><a href="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2F2BqNQjEwHQlJFWvk69TX%2Ficon_mqtt.png?alt=media&amp;token=5707026f-5a5f-4086-8168-a4a5fe3a91d1">icon_mqtt.png</a></td><td><a href="/pf/ct/mqtt.md">MQTT</a></td></tr><tr><td>Send telemetry data directly to a web server or API endpoint.</td><td><a href="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FYtlf2fl6PKnDRyAvVf76%2Ficon_rest_api.png?alt=media&amp;token=f965cc3c-6b30-4178-99ea-134b087bc2a0">icon_rest_api.png</a></td><td><a href="/pf/ct/http.md">HTTP</a></td></tr><tr><td>Upload telemetry or logged data files to a remote FTP server.</td><td><a href="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FmSAaTHQJ8cpsINRxoGGS%2Ficon_ftp.png?alt=media&amp;token=ef8914f2-b99d-4510-aa0b-5ec9c50a777a">icon_ftp.png</a></td><td></td></tr></tbody></table>

### Payload

The **payload** defines how the acquired sensor values are packaged before they are transmitted. The payload format is configured according to what the receiving server or platform expects.

YuDash supports configurable **JSON** and **text-based payloads**.

<table data-view="cards"><thead><tr><th></th><th data-hidden data-card-cover data-type="image">Cover image</th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td>Package telemetry data in structured JSON format for server integration.</td><td><a href="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FsRBZZv4XH2tJe6CLYsn1%2Ficon_json_backup.png?alt=media&amp;token=bfa1d49f-8eb5-4ead-87a1-32a86c32019f">icon_json_backup.png</a></td><td><a href="/pf/ct/payload.md#json-payload">Payload</a></td></tr><tr><td>Format telemetry data as configurable text or CSV-style content.</td><td><a href="https://1858257737-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FToww5EM1cml3ouN6fvnJ%2Fuploads%2FkJxmVwVGTutHsjscp2jZ%2Ficon_csv_files.png?alt=media&amp;token=3d1ebfb3-0c9b-4b0b-b913-8154ea28305f">icon_csv_files.png</a></td><td></td></tr></tbody></table>