add some code

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2025-09-05 13:25:11 +08:00
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# ESP IO Expander Component
This componnent is main esp_io_expander component which defines main functions and types for easy adding specific io expander chip component.
## Supported features
- [x] Set an IO's direction
- [x] Get an IO's direction
- [x] Set an IO's output level
- [x] Get an IO's input level
- [x] Show all IOs' status
- [ ] Interrupt mode