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
runtime_baud (as described in
Config file reference):
hardware: platform: spike 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:
displays: window: # on screen window width: 600 height: 200 dmd: # source display for the DMD width: 128 height: 32 default: true dmds: my_dmd: platform: spike fps: 30 # some default slides (you don't need those but they are a nice start) slides: window_slide_1: # slide we'll show in the on-screen window - type: display width: 512 height: 128 effects: - type: dmd dmd_slide_1: # slide we'll show on the physical DMD - type: text text: MPF font_size: 30 color: red x: 0 animations: add_to_slide: - property: x value: 250 duration: 30 relative: true slide_player: init_done: window_slide_1: target: window dmd_slide_1: 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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