32 Port IO Expander

    £ 10.00 £ 10.00 10.0 GBP

    £ 10.00

    This combination does not exist.

    Add to Cart

    Dual MCP23S17 breakout

    Terms and Conditions
    30-day money-back guarantee
    Shipping: 1-3 Business Days


    Lots of IO

    Low on IO ports on your Arduino or chipKIT board? Then this board is for you! Sporting a massive 32 IO ports using just the 4 pins of your SPI interface.

    Flexible IO

    Each individual pin can be set to an input or an output. Not only that, the inputs can have internal pullups and Change Notification interrupts enabled - just like the real IO pins in your Arduino.

    Even more IO

    32 IO ports still not enough? Up to 4 of these boards can be stacked together, all sharing the same SPI pins, giving you a massive 128 IO ports. Add one more chip-select pin on your Arduino and you can double that again to 256. And so on.



    Input Voltage
    2.7V - 5.5V
    IO Ports