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Interfacing to MCP23008 I/O Expander — Parallax Forums

Interfacing to MCP23008 I/O Expander

william chanwilliam chan Posts: 1,326
edited 2010-08-02 13:54 in Propeller 1
Hey,

Anybody has any experience interfacing to the I2C MCP23008 I/O Expander?
I tried reading the datasheet, but I can't even find the i2c opcode for this device...

Thanks a million.

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www.fd.com.my
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Comments

  • LeonLeon Posts: 7,620
    edited 2010-08-02 12:43
    I haven't used it but all the details you need are in the data sheet. There are several app notes that might help, including one using the PIC10F202 with bit-banged software, which is how you will need to do it with the Propeller.

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    Leon Heller
    Amateur radio callsign: G1HSM
  • JavalinJavalin Posts: 892
    edited 2010-08-02 13:54
    if its the same as I am thinking of - the driver is included in my i2c object...

    http://obex.parallax.com/objects/251/

    Cheers,

    James
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