PCF8575 I2C IO Extension Shield Module 16 I/O Port Expander Arduino PI


15 in stock

SKU: PCF8575MOD Category:



  • 100% brand new and high quality.
  • Have you run out of I/O pins? This great module allows the user to expand up to 16 I/O using only two I/O for control! The PCF8575 is controlled through an I2C interface and features 16-bits of quasi-bidirectional input/output pins.
    On board 3.3V level converter circuit, if you donot solder VCC-VDD pad, the PCF8575 level is 3.3V. If you solder it, the level will be the same with VCC
    Arduino available library: PCF8575
    Working voltage: 2.5 – 5.5VDC
    Working current: 100mA(MAX)
    I2C address: 0x20(default),can be modified by soldering A1 and A2 selection pads.
    16 individually addressable pins.
    Each pin configurable for input or output
    Open-drain interrupt output pin for input change interrupt.
    Great for Arduino UNO R3 and other MCU to control simple relay, buzzer, button, led.
  • Download ip:https://www.winddeal.net/image2/tools/1A40590.rar
  • Size: 4×2.1cm/1.57×0.83inch
  • Quantity: 1 Pc

Package includes:

  • 1 Pc x Expander Module

Additional information

Weight 30 g
Dimensions 40 × 21 × 20 mm


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