Step 2. Visualize data on Dashboard

Dashboard is a centralized, configurable user interface used for monitoring, analyzing, and managing IoT systems in real time.

A dashboard consists of widgets — configurable components such as charts, cards, tables, or maps — used to visualize data, display alarms and events, and interact with devices or processes.

In this step, you will create a new dashboard and add three widgets:

• a widget that displays the latest temperature value;
• a chart widget that shows temperature changes over time;
• an alarms widget that displays alarms triggered by high temperature conditions.

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Create a dashboard to visualize device telemetry and alarm data.

1. From the main menu, navigate to Dashboards.
2. In the upper-right corner, click + Add dashboard ⇾ Create new dashboard.
3. Enter the Title, for example, My Dashboard.
4. Click Add.

The dashboard has been created. It opens automatically, so you can start adding widgets right away.

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Add a Value card widget to display the latest temperature value.

1. In the dashboard edit mode, click + Add new widget in the center of the screen.
2. Select Cards ⇾ Value card.
3. Configure the widget:
   • Set Thermometer device as the datasource.
   • Use temperature as the data key.
4. Click Add.
5. Resize the widget if necessary.

The widget displays the latest temperature reported by the device.

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A Time series chart visualizes how telemetry values change over time.

Add a chart to display temperature history:

1. In the dashboard edit mode, click + Add widget.
2. Select Charts ⇾ Time series chart.
3. Set Thermometer device as the datasource.
4. In Series, specify temperature as the series key.
5. Click Add.
6. Adjust the widget size if needed.

The chart displays all recorded temperature values with timestamps for the last hour.

Send several new telemetry updates (see Step 1.2). The chart updates automatically as new data arrives, providing real-time visualization of temperature changes.

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An Alarms table widget displays alarms associated with selected entities, including their severity and status.

Add an alarms table to the dashboard:

1. In edit mode, click + Add widget.
2. Select Alarm widgets ⇾ Alarms table.
3. Set Thermometer device as the datasource.
4. Configure alarm severity and status filters. The widget displays alarms matching the selected properties. If none are selected, all alarms will be displayed, regardless of their status or severity.
5. Click Add.
6. Resize and position the widget if needed.

Click Save in the top-right corner of the dashboard to save it.

The dashboard now provides real-time visibility into telemetry data and active alarms.

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