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Topics

{topic_prefix}/state

Information about the machine state is published to this topic. Each message contains a JSON dictionary, which will contain the following fields:

  • online

    Boolean. True when the tablet is connected to the MQTT broker, and false when the tablet is disconnected. This field is always present.

  • de1_connected

    Boolean. True if the tablet is successfully connected to the DE1+, or false if the bluetooth connection is not established. This field is always present. If it is false only the online and de1_connected fields will be present in the message, no other fields will be present since the DE1+ state is not available.

  • scale_connected

    Boolean. True if the scale is connected, and false otherwise.

  • state

    String. The state of the device (e.g. "Sleep", "Idle", "Espresso", etc.) For a full list of states, see the de1_num_state array in de1plus/machine.tcl

  • substate

    String. The substate of the device (e.g. "ready", "heating", "pouring", etc.) For a full list of states, see the de1_substate_types array in de1plus/machine.tcl

  • profile

    String. The title of the currently configured shot profile.

  • profile_filename

    String. The filename of the currently configured shot profile.

  • espresso_count

    Integer. The total number of espresso shots this machine has ever poured.

  • steaming_count

    Integer. The total number of times the steam function has been used on this machine.

  • head_temperature

    Float. The group head temperature, in degrees Celsius.

  • mix_temperature

    Float. The water mix temperature, in degrees Celsius.

  • steam_heater_temperature

    Float. The steam heater temperature, in degrees Celsius.

  • steam_mode

    String. Reports the state of the steam heater as "On", "Off", or "Eco". (Eco mode is a setting that can be enabled on page 3 of the Machine Calibration settings. This lowers the steam heater temperature after the machine has been idle for 10 minutes.)

  • steam_state

    Boolean. Reports whether the steam heater is on or off.

  • water_level_mm

    Float. The water level in the water tank, in millimeters.

  • water_level_ml

    Integer. The water level in the water tank, in milliliters. (This is calculated in software based on the millimeter water height measurement.)

  • wake_state

    Boolean. This is false when the DE1 state is "Sleep", and true in any other state. This is provided as a convenience in order to make it easier for other MQTT clients to treat the DE1+ as a binary switch that can be toggled on or off.

{topic_prefix}/command

The plugin takes action based on messages sent to the command topic. Currently the following are supported:

  • wake

    Wakes the machine from sleep.

  • sleep

    Puts the machine to sleep, if it is not actively pouring.

  • steam_on

    Turns on the steam heater. This wakes the machine first, if necessary. If the heater was running in Eco mode, this resets it to full temperature and resets the Eco mode idle timer.

  • steam_off

    Turns off the steam heater.

  • profile PROFILE

    Sets the current machine profile.

    The profile name may contain spaces (and any other special characters). All data following the space after profile is treated as the profile name, without any escaping.

  • profile_filename PROFILE_FILENAME

    Sets the current machine profile to the specified profile, by profile filename.

    The file name may contain spaces (and any other special characters). All data following the space after profile_filename is treated as the file name, without any escaping.