1

We are using a telemetry property "Bulb status" with an enum as shown below

"@id": "urn:veeazigbeeappdemo:ZigbeeDeviceTemplate_12r3:on_off:1",
      "@type": "Telemetry",
      "displayName": {
        "en": "Bulb Status"
      },
      "name": "on_off",
      "schema": {
        "@id": "urn:veeazigbeeappdemo:ZigbeeDeviceTemplate_12r3:on_off:hxdsbx1pp:1",
        "@type": "Enum",
        "displayName": {
          "en": "Enum"
        },
        "valueSchema": "string",
        "enumValues": [
          {
            "@id": "urn:veeazigbeeappdemo:ZigbeeDeviceTemplate_12r3:on_off:hxdsbx1pp:On:1",
            "@type": "EnumValue",
            "displayName": {
              "en": "On"
            },
            "enumValue": "1",
            "name": "On"
          },
          {
            "@id": "urn:veeazigbeeappdemo:ZigbeeDeviceTemplate_12r3:on_off:hxdsbx1pp:Off:1",
            "@type": "EnumValue",
            "displayName": {
              "en": "Off"
            },
            "enumValue": "0",
            "name": "Off"
          }
        ]
      }

The tile is made to display "Last Known value" in Template

Bulb status

When we send a payload as follows

payload = '{"on_off": %s}' % (random.choice([0, 1]))

we are getting the Bulb status correctly displayed as follows

Bulb status on

when we send a payload which doesn't have Bulb status(on_off) telemetry property in it as below

payload = '{"current_level": %f}' % random.randrange(10.0, 100.0)

we are getting the Bulb status being shown as blank as follows

Bulb status blank

Correct Behaviour: The Bulb status should show last know value from on_off property and should not display as blank when we don't send that telemetry property.

This kind of behavior with enum is causing an issue for us. Please provide the solution to overcome this.

Please let me know Where can I post this as a bug of Enum in Azure IoT Central?

Hariharnath Paduchuru
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1 Answers1

1

It looks like an enum type is handling a null value differently than the other types. It seems to me, the unmodeled data should be not modify a dashboard.

As a workaround, Can you change type to the SemanticType/State? The State History is working well:

enter image description here

enter image description here

The feedback to the IoT Central team is here.

Roman Kiss
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