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PCF8574 interrupt pin

Open pantherale0 opened this issue 2 years ago • 3 comments

Describe the problem you have/What new integration you would like I have a PCF8575 that is currently used purely for inputs from momentary buttons, software polling seems extremely slow and doesn't pick up state changed very quickly. This FR is to request support for the interrupt pin of a PCF8575 to allow near instant updates on events.

Please describe your use case for this integration and alternatives you've tried: Improvement to existing integration, no alternatives available due to limited configuration options

Additional context

pantherale0 avatar Jun 21 '23 23:06 pantherale0

This is the specific board I'm using https://amzn.eu/d/1fTJjcL

pantherale0 avatar Jun 21 '23 23:06 pantherale0

Adding support for interrupts would open possibility to use pule counters.... Support for interrupts is very much needed (and overdue).

mstuczko avatar Mar 31 '24 00:03 mstuczko

I know this is quite old, but I upvote this. Adding suport for interrupt pin is not that complicated and would allow asynchronous notifications on input change instead of polling which is not optimal nor reliable

bartowl avatar Oct 06 '25 08:10 bartowl