#Panel Development FAQs

#Why are the data points (DPs) for virtual device debugging and device schema empty?

Possible causes:

Your device is connected through TuyaLink. The method for obtaining the DPs of TuyaLink-based devices differs from that for TuyaOS-based devices. Currently, the virtual device plugin and project template do not support TuyaLink, but we will add this support soon.

Solutions:

You can encapsulate the implementation using the APIs for the DP model.

• Get the DPs of a device through getDeviceThingModelInfo.
• Control a device through publishThingModelMessage.
• Listen for DPs through onReceivedThingModelMessage.

#How can I identify a single device and group?

Based on whether the groupId is included in the start parameters.

#How can I debug a device group?

Set groupId in the start parameter in the developer tool.

#How can I control multiple devices?

To control multiple devices with one panel, store the IDs of the additional devices in the current device's properties.

• Call getLinkageDeviceList in the current panel to get the device ID.
• Call getDeviceListByDevIds to get the device information.
• Show the device list on the user interface or use an alternative method to identify the IDs of devices for control.
• Call setDeviceProperty to store the device ID.
• You can then get the device ID through getDeviceProperty for control.

#How can I get the device ID (deviceId)?

Open the device panel on the mobile app. Tap the top right corner and select Device Information. The Virtual ID is the device ID.