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bob1de / hass-apps

Some useful apps and snippets to empower Home Assistant and AppDaemon even more.
Apache License 2.0
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[schedy] Support for external temperature sensor #28

Closed alekslyse closed 5 years ago

alekslyse commented 5 years ago

Is it possible to use this app with an external temperature sensor to automatically adjust the setpoint? My thermostat does not read correctly the temperature, and rather want to use a zwave temperature sensor to be the goal for the AC instead of the builtin one.

bob1de commented 5 years ago

How do you want the setpoint to be adjusted?

If the thermostats reading differs from the real temperature by a constant value, you can configure a delta for the thermostat actors.

Other than that, I don't see how you want to change the setpoint based on an external temperature sensor. Please describe this in more detail.

alekslyse commented 5 years ago

Maybe something like a dynamic setpoint that adjust the delta automatically. For example if an external sensor (or multiple for avg) is used it use that as the baseline and try as best it can to adjust the AC according to that it slowly on the trend adjust the delta up or down untill the sensor(s) is at the prefered temperature. This could very likely be combined with things like fan speed and direction to automatically keep zones at the correct temperature.

A lot of AC has a very badly placed temperature sensor making its own air affect the reading, so actually having a sensor or avg of multiple would in my view make smart home more useable.

bob1de commented 5 years ago

But that's not related to scheduling at all. The thermostat is responsible for maintaining the setpoint, however it may do that. Do you know the generic thermostat component in HA? That's a good starting point for building own thermostats from temperature sensor and a switchable heater.

What you can also do is writing a more complex expression for the schedule that outputs a setpoint based on arbitrarily complex criteria, such as your temperature sensor. You'll have to write it yourself, of course.

bob1de commented 5 years ago

As this is no issue with Schedy, I'll close it now. Feel free to ask if you've got further questions.

bob1de commented 5 years ago

Hi again,

What also came to my mind is a custom result postprocessor that considers the values of all available sensors in a room and then modifies the scheduling result. You can read about it in the docs.