Aqara SRTS-A01 smart schedule

[protyposis]

Add smart scheduling support for Aqara Smart Radiator Thermostat E1 (SRTS-A01). This is a refactored and improved version of the stale #4763.

This adds the following:

• schedule: A toggle to turn on/off the smart schedule.
• schedule_settings: A string representation of the schedule settings. Example (default): mon,tue,wed,thu,fri,sat,sun|8:00,24.0|18:00,17.3|23:00,22.0|8:00,22.0

I tried to expose the schedule as a configuration object which can be nicely managed through the frontend, but this is currently not possible due to various limitations (see discussion in #5058 (review)). Exposing it as a string is a first step to figure out if this is even useful.

A schedule consists of a selection of weekdays and exactly 4 events that set a specific temperature at a specific time. The temperatures of the first 3 events are those that can be controlled in the Aqara app, the last one is always set to the previous one in the Aqara app. I decided to explicitly expose it anyway, but I don't know if it's interpreted by the TRV.

I have successfully tested reading and writing the settings, and made sure the written data corresponds exactly to the factory-set data. However, I have not tested whether the schedule is actually executed by the TRV, i.e., if it actually works.

[0ip]

Thanks a lot for your effort! Really hope this PR makes it through.

Have you been able to work out how preset behaves when the schedule is active?

[protyposis]

Have you been able to work out how preset behaves when the schedule is active?

Unfortunately not. I expected some dependencies, e.g., that the preset changes to auto when enabling the schedule, or the schedule enables when switching to auto, but I couldn't identify any such interdependencies. So I was actually hoping to merge this, gather feedback from users, and improve in a follow-up PR. Unless a motivated reviewer with the required knowledge comes along who investigates this.

[itsSaad]

@protyposis This PR seems to be stuck same as #4763.
What needs to be done. Can I help you to unblock this PR.
I just acquired two of these TRVs and feel that many functionalities are missing.

• Schedules

• External Temp Sensor. UPDATE: This is working atm by setting the sensor to external and publishing a mqtt message to the topic: zigbee2mqtt/FRIENDLY_NAME/set with json value: {"sensor_temp": 21 }

• No indication if the Valve is closed or open. I expected an idle hvac_action/system_mode.
  Not sure what other functionalities the aqara app has.

Im willing to test this if that will unblock this effort.

[protyposis]

@itsSaad this PR is only about the schedule. Please discuss unrelated features elsewhere, e.g. in Koenkk/zigbee2mqtt#13993.

[itsSaad]

@protyposis Im not discussing those but just mentioned them. My comment was mainly to offer help.

[Koenkk]

Could you add an example to the description?

[protyposis]

Added

[Koenkk]

Could you move this file into

zigbee-herdsman-converters/lib/xiaomi.js

Line 864 in 8be00cc

const trv = {

?

[protyposis]

Moved

[Koenkk]

@protyposis I left two minor comments, after that it is ready for merge. Can you also fix the merge conflict?

[Koenkk]

Thanks!