this post was submitted on 01 Oct 2023
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Lowest latency input (lemmy.nz)
submitted 2 years ago by Sim@lemmy.nz to c/homeassistant@lemmy.world
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I'm using a ZigBee button to call an automation which notifies via Pushover and Alexa. Works fine.

I'd like to reduce latency and use a physical button. I can use a Pi, ESP32 or similar to respond to a closure and tell HA.

What's the lowest latency input to HA? My MQTT server is separate so I'm thinking an HTTP post direct into HA might be best.

Is there anything faster? HTTP is fast enough in my testing, it's an experiment as much as anything else.

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[–] pajn@lemmy.blahaj.zone 2 points 2 years ago

Zigbee is for this usecase instant and definitely faster than any ESP wifi based solution. Your slowness here isn't for reaching HA, it's HA itself and primarily pushover and Alexa. What is it you are trying to do? For anything that should feel instant, getting rid of pushover and Alexa will be crucial.