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How to configure DMDs (Stern SPIKE)

Related Config File Sections:

Stern Spike 1 machines support a monochrome DMD. MPF can drive the DMD over serial but you have to make sure that your serial is fast enough to provide sufficient throughput (at least 1.5Mbaud). This can be configured using runtime_baud (as described in Config file reference):

  platform: spike
  port: /dev/ttyUSB0
  baud: 115200
  runtime_baud: 2000000       # play with this setting
  nodes: 0, 1, 8, 9, 10, 11

Then configure your dmd like in this example:

  window:  # on screen window
    width: 600
    height: 200
  dmd:  # source display for the DMD
    width: 128
    height: 32
    default: true
    platform: spike
    fps: 30
# some default slides (you don't need those but they are a nice start)
  window_slide_1:  # slide we'll show in the on-screen window
    - type: display
      width: 512
      height: 128
        - type: dmd
  dmd_slide_1:  # slide we'll show on the physical DMD
    - type: text
      text: MPF
      font_size: 30
      color: red
      x: 0
          - property: x
            value: 250
            duration: 30
            relative: true
      target: window
      target: dmd
##! test
#! assert_text_on_top_slide MPF dmd
#! assert_text_on_top_slide MPF window

Note that the Using a traditional (single color) physical DMD guide has more details on the window and slide settings used in this machine config.

What if it did not work?

Have a look at our SPIKE troubleshooting guide.

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