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pfd-driver

PiFaceDigital driver

This device can't handle multiple executables connecting to it at the same time, so we use one service and then sub-services use this as a lower level API.

Message Spec

Format: <channel> "message"

Inputs

  • <pfd.input> "*"

    • Triggers a request for status of all of the inputs

  • <pfd.input> "[0:7]"

    • Triggers a request for status for the specified input

  • <pfd.output.[0:7]> "on"

    • Turn on the output at index [0:7]

  • <pfd.output.[0:7]> "off"

    • Turn off the output at index [0:7]

  • <pfd.output.[0-7]> "/"

    • Toggle the status of the output at index [0:7]

  • <pfd.output.[0:7]> "?"

    • Request the status of the output at index [0:7]

Outputs

  • <pfd.input.[0:7]> "input.[0:7].on"

    • The input at index [0:7] has been connected
    • Triggered automatically
    • Also sent when an input is provided on <pfd.inputs> channel, if the input is on

  • <pfd.input.[0:7]> "input.[0:7].off"

    • The input at index [0:7] has been disconnected
    • Triggered automatically
    • Also sent when an input is provided on <pfd.inputs> channel, if the input is off

  • <pfd.output.[0:7].status> "output.[0:7].on"

    • The output at index [0:7] has been turned on
    • Triggered on a state change, or when a status is requested

  • <pfd.output.[0:7].status> "output.[0:7].off"

    • The output at index [0:7] has been turned off
    • Triggered on a state change, or when a status is requested