Smart Home TemperatureSetting reading(celsius) custom range - actions-on-google

Question

I am using action.devices.types.THERMOSTAT with action.devices.traits.TemperatureSetting, i want to set custom range for Celsius from 16 to 28 is it possible ? i have tried using bufferRangeCelsius attribute but it did not produced any effect on range and default Celsius range from 10 to 32 appearing , i have tried as given below,
app.onSync((body, headers) => {
return {
requestId: body.requestId,
payload: {
agentUserId: '1836.15267389',
devices: [{
id: '123',
type: 'action.devices.types.THERMOSTAT',
traits: [
'action.devices.traits.TemperatureSetting'
],
name: {
defaultNames: ['Honeywell Thermostat T-1000'],
name: 'Homer Simpson Thermostat',
nicknames: ['living room thermostat']
},
willReportState: false,
attributes: {
availableThermostatModes: 'off,heat,cool,on',
thermostatTemperatureUnit: 'C',
bufferRangeCelsius : 16-28
},
deviceInfo: {
manufacturer: 'honeywell',
model: 't-1000',
hwVersion: '3.2',
swVersion: '11.4'
},
customData: {
fooValue: 74,
barValue: true,
bazValue: 'lambtwirl'
}
}]
}
};
});

Answer 1

The bufferRangeCelsius attribute is intended to report the minimum difference between two setpoints in heatcool mode, and doesn't affect the min/max range where setpoints are allowed (when the docs mention range they are generally referring to the distance between a current low and high setpoint).
Reporting the full supported range of your thermostat's temperature control is not currently supported by the API. If your service receives a request to set the temperature outside of the supported range, return a valueOutOfRange error response:
{
"requestId": "ff36a3cc-ec34-11e6-b1a0-64510650abcf",
"payload": {
"commands": [
{
"ids": ["123"],
"status": "ERROR",
"errorCode": "valueOutOfRange"
}
]
}
}