Component Update Rater faster than a Second

Development
1

Hi there,

I’ve got a PI and was playing around with creating a switch component. It is physically controlled by an external button with an GPIO. The polling interval seem to be minimum 1 second with the yaml configuration. So how do I get HA react much more faster on the status change of my button? Or how do I send out a status change from my component correctly?
Sorry if this are dumb questions, just starting with the development and couldn’t find anything in the documentaion.

BR
Barns

2

Why not use the GPIO binary sensor? With that you would just create an automation based on the state of that sensor. I have not used it myself, but I would assume it’s implemented in a way that always keeps the sensor up to date without any noticable lag.