Optimistic parameter in Home Assistant
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Doesn't work.
Invalid config for [mysensors]: required key not provided @ data['mysensors']['gateways']. Got None. (See /config/configuration.yaml, line 175).
Gateways I have defined in the integrations UI.@Marek If you only copy and pasted the above two lines into your config, then you got that error message because it is an incomplete configuration for the old, YAML-based MySensors integration.
A valid YAML configuration looks, or rather looked, like this:
mysensors: gateways: - device: mqtt persistence_file: '/config/mysensors.json' topic_in_prefix: 'mysensors-out' topic_out_prefix: 'mysensors-in' - device: mqtt persistence_file: '/config/mysensors_testing.json' topic_in_prefix: 'mytest-out' topic_out_prefix: 'mytest-in' optimistic: true retain: true version: '2.3'You may be able to set the optimistic setting by adding something like this to your config and restarting Home Assistant. You may also need to delete your existing UI-based integration beforehand.
That being said, the old YAML configurations are not recommended (and apparently neither documented) anymore. When a YAML-based MySensors configuration is detected after a HA start, it will be migrated to the new UI-based integration automatically. Subsequent changes to the YAML config will be ignored.
AFAIK, the new UI-based intregration deprecated a bunch of configuration options and I think that the optimistic setting is one of them. I don't know of a way to set it using the UI-based integration, nor if it'll be carried over by importing an "existing" YAML config. The documentation of the MySensors integration may be incorrect / outdated here.
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I did as you advised. I deleted Mysensors in gui. I added the configuration in configuration.yaml. After rebooting HA still does not optimistic work. There is an entry in the log: 'optimistic option for mysensors is deprecated. Please remove optimistic from your configuration file '.
I'm afraid Home Assistant has killed the ability to use battery-operated MySensors devices. -
No, Home Assistant didn't render battery-powered nodes unusable.
I have never used the optimistic mode in Home Assistant, yet I'm able to achieve uptimes of more than a year with CR2032-powered (merely ~230 mAh) MySensors nodes. See here for an example. The temperature sensor I mentioned there is still working since April 2020, reporting every 5 minutes.
In which use case would the optimistic mode be necessary?
I mean, you have full control over the node's behavior. If you want to go as easy on the batteries as possible, you can put a node back to sleep as soon as it has sent a new measurement once, without waiting for any feedback. For more critical sensors (i.e. security-related) and actors on the other hand, you probably want confirmation that the data was successfully received and rather replace the batteries a little bit earlier, don't you?
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Temperature measurement is not a problem. It doesn't need optimistic mode.
I have my DIY nodes that control heating in rooms (radiators). They are battery devices. Every 5 minutes they wake up to check if the switch (S_BINARY) is turned on or not. This switch requires optimistic mode.
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