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This example will show you how to use TCA9535 I2C I/O Expander:
- read register data
- write register data
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Pin assignment:
- GPIO33 is assigned as the data signal of i2c slave port
- GPIO9 is assigned as the clock signal of i2c slave port
- GPIO39 is assigned to INT output of TCA9535. This functionality is not used in this example
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example of communicating with TCA9535 I/O Expander from ESP32
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SelfTide/esp32-tca9535
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example of communicating with TCA9535 I/O Expander from ESP32
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