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MCP23017 with ESP8266 in ESP Easy - how to configure an I/O expander

sznickers 36 0
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  • #1 21736612
    sznickers
    Level 11  
    Hi I have a problem with the command for the MCP23017 expander.
    I have connected the MCP23017 to the ESP8266 - on 5v.
    I have added the device in the ESP:
    ESP Easy interface showing MCP23017 device added via I2C connection
    It detected the MCP module scanning:
    ESP Easy Mega interface displaying detected I2C address 0x20 for MCP23017

    https://espeasy.readthedocs.io/en/latest/Plugin/P009.html
    https://www.letscontrolit.com/wiki/index.php?title=MCP23017

    MCPGPIO,<MCPGPIO>,<state>

    I apply the command : MCPGPIO,<1>,<1>
    and I get that wrong.
    ESP Easy interface with command MCPGPIO,, and result “Failed”
    I have also tried: MCPGPIO,<PA0>,<1> and it doesn't work either.
    Maybe someone can suggest something where the problem could be ?
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