ANGEEK 2Pcs PCF8574 I2C Interface 8 bit IO Expansion Board I/O Expander Bus Evaluation Development Module
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Standard interface that can be expanded in a variety of development boards I2C Serial port to 8-bit parallel port , support expand into 8×8 = 64 at most PCF8574 IO expansion chip with I2C interface, 8-bit parallel port output Applicable to a variety of platforms including Arduino / AVR / ARM With this module, you can use only 2 ports of your Arduino or Raspberry Pi board to control up to 8 digital I/O ports.
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Description
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Standard interface that can be expanded in a variety of development boards I2C Serial port to 8-bit parallel port , support expand into 8×8 = 64 at most PCF8574 IO expansion chip with I2C interface, 8-bit parallel port output Applicable to a variety of platforms including Arduino / AVR / ARM With this module, you can use only 2 ports of your Arduino or Raspberry Pi board to control up to 8 digital I/O ports.
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Description
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Standard interface that can be expanded in a variety of development boards I2C Serial port to 8-bit parallel port , support expand into 8×8 = 64 at most PCF8574 IO expansion chip with I2C interface, 8-bit parallel port output Applicable to a variety of platforms including Arduino / AVR / ARM With this module, you can use only 2 ports of your Arduino or Raspberry Pi board to control up to 8 digital I/O ports.
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