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esphome/esphome
J. Nick Koston 79fe3de912 [pcf8574][pca9554] Add optional interrupt pin to eliminate polling
Add interrupt_pin config option to PCF8574 and PCA9554 GPIO expander
components. When configured, the component disables its loop and only
wakes on interrupt, eliminating continuous I2C polling when no pins
have changed state.
2026-04-04 08:22:37 -10:00
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