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This is the developer documentation for MPF 0.54, which is the “dev” (next) release of MPF that is a work-in-progress. Use the “Read the Docs” link in the lower left corner to view the developer docs for the version of MPF you’re using.


class mpf.devices.dmd.Dmd(machine, name)

Bases: mpf.core.system_wide_device.SystemWideDevice

A physical DMD.

Accessing dmds in code

The device collection which contains the dmds in your machine is available via self.machine.dmds. For example, to access one called “foo”, you would use self.machine.dmds.foo. You can also access dmds in dictionary form, e.g. self.machine.dmds['foo'].

You can also get devices by tag or hardware number. See the DeviceCollection documentation for details.

Methods & Attributes

Dmds have the following methods & attributes available. Note that methods & attributes inherited from base classes are not included here.

format_log_line(msg, context, error_no) → str

Return a formatted log line with log link and context.

raise_config_error(msg, error_no, *, context=None) → NoReturn

Raise a ConfigFileError exception.

update(data: bytes)

Update data on the dmd.

Parameters:data – bytes to send