I’m developing an addon which reads external hardware for its own purposes and to forward to Home Assistant via MQTT discovery.
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What is a ‘good’ update interval for HA?
Hardware reads are every 15 seconds.
Is this too rapid for HA?
Should I only publish to HA every 30 seconds, 60 seconds… -
How to handle bad data from the hardware?
When the addon gets bad data should it:
take the MQTT sensor offline (availability topic = ‘offline’),
leave online and set the value (state topic) to ‘unknown’
leave online but not publish and let HA timeout after ‘exp_aft’ seconds
and/or something else?
Thanks
Mike