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this project just simply shows how to drive I2C interrupt function(based on esp32 platform with IC pca9555).

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erfengwelink/esp32_pca9555_isr

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esp32_pca9555_isr

+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ this project just simply shows how to drive I2C interrupt function(based on esp32 platform with IC pca9555).| +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

1>hardware:

   ESP32		 PCA9555
+-------+		+-------+
|	|		|	|
| GPIO13|---------------|scl	|
| GPIO14|---------------|sda	|
| 	|		|	|
| GPIO15|---------------|~INT	|
|	|		|	|
+-------+		+-------+

2>software: see the code.

note:

1. only when pca9555 ios configured input mode the interrupt trigger is valid.

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this project just simply shows how to drive I2C interrupt function(based on esp32 platform with IC pca9555).

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