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I2C_PCA9555_BSP
- PCA9555,NXP的I2C接口16位GPIO扩展芯片,可读可写,针对一般中低速应用I/O扩展,扩展简单,应用方便;(PCA9555, NXP I2C interface, 16 bit GPIO expansion chip, readable and writable, for the general medium and low speed applications I/O expansion, expansion simple, easy to use;)