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- Using the original imported MCP23017 chip, the I2C interface is converted into 16-channel IO
- 16 IOs can be input or output
- Support to set pull-up resistor
- Support to enable Interrupt function
- IO drive capability up to 25mA
- I2C interface can support rate 100K 400K 1.7M
- The module I2C address line can be selected by itself. Up to eight different addresses can be applied to modules.
- Support arduino by libaries.