I am developing Alexa skill to support Blind controller. I want to use two range controllers in the skill, one to control Lift (hight) and another one to control the Tilt (angle) of the blind.
Here is the discovery response sent to Alexa.
{
"endpoints": [
{
"endpointId": "d7:e1@WindowCoveringControl",
"friendlyName": "Blind",
"description": "J1-R (5602)",
"manufacturerName": "ubisys",
"displayCategories": [
"INTERIOR_BLIND"
],
"capabilities": [
{
"type": "AlexaInterface",
"interface": "Alexa.RangeController",
"version": "3",
"instance": "Tilt",
"properties": {
"supported": [
{
"name": "rangeValue"
}
],
"proactivelyReported": false,
"retrievable": false
},
"capabilityResources": {
"friendlyNames": [
{
"@type": "text",
"value": {
"text": "Tilt",
"locale": "en-US"
}
},
{
"@type": "asset",
"value": {
"assetId": "Alexa.Setting.Preset"
}
}
]
},
"configuration": {
"supportedRange": {
"minimumValue": 0,
"maximumValue": 100,
"precision": 1
},
"presets": [],
"unitOfMeasure": "Alexa.Unit.Percent"
}
},
{
"type": "AlexaInterface",
"interface": "Alexa.RangeController",
"version": "3",
"instance": "Lift",
"properties": {
"supported": [
{
"name": "rangeValue"
}
],
"proactivelyReported": false,
"retrievable": false
},
"capabilityResources": {
"friendlyNames": [
{
"@type": "asset",
"value": {
"assetId": "Alexa.Setting.Opening"
}
},
{
"@type": "text",
"value": {
"text": "Lift",
"locale": "en-US"
}
}
]
},
"configuration": {
"supportedRange": {
"minimumValue": 0,
"maximumValue": 100,
"precision": 1
},
"presets": [],
"unitOfMeasure": "Alexa.Unit.Percent"
},
"semantics": {
"actionMappings": [
{
"@type": "ActionsToDirective",
"actions": [
"Alexa.Actions.Close"
],
"directive": {
"name": "SetRangeValue",
"payload": {
"rangeValue": 100
}
}
},
{
"@type": "ActionsToDirective",
"actions": [
"Alexa.Actions.Open"
],
"directive": {
"name": "SetRangeValue",
"payload": {
"rangeValue": 1
}
}
},
{
"@type": "ActionsToDirective",
"actions": [
"Alexa.Actions.Lower"
],
"directive": {
"name": "AdjustRangeValue",
"payload": {
"rangeValueDelta": 10,
"rangeValueDeltaDefault": false
}
}
},
{
"@type": "ActionsToDirective",
"actions": [
"Alexa.Actions.Raise"
],
"directive": {
"name": "AdjustRangeValue",
"payload": {
"rangeValueDelta": -10,
"rangeValueDeltaDefault": false
}
}
}
],
"stateMappings": []
}
}
]
}
]
}
As you can see the capability has a friendly name as "Tilt" and the second one has "Lift"
Whereas the Alexa voice control only accepts "Lift" and I can set the lift value,
but it does not accept the "Tilt" keyword and says "Blind doesn't support that. "
