==Zynthian without encoders using legacy 2in1 module for Extra Switches==
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You can configure a zynthian without controllers (encoders+switches) for using an ancient 2in1 module to get up to 4 extra switches that you can bind to CUIA or MIDI actions.
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This is the wiring layout configuration you have to setup in webconf tool:
{{WarningBox|As the 2in1 module doesn't use the MCP23008's INTA pin, switches are detected by polling, so i strongly recommend to only configure the pins you are actually using.}}