3 Pieces PCF8574 IO Expansion 2C Development Board For Pi

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Description:

Standard interface that can be expanded in a variety of development boards
I2C Serial port to parallel port , support expand into 8×8 = 64 at most
PCF8574 IO expansion chip with I2C interface, parallel port output
Applicable to a variety of platforms including / AVR / ARM
With this module, you can use only 2 ports of your or Pi board to control up to I/O ports.
Material:
Size: Approx. 55x15x1mm

Package Includes:

3 Pieces PCF8574 Expansion Board

Power Supply Module;12V 500mA Power Supply;Switching Power Supply Board; Supply;DC Power Supply;Power Supply Adapter;Power Supply Board;Power Supply Bench;Power Supply Cord;Power Supply DC;Power Supply Buck Converter