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Information for Advanced Configurations

  • Should the Pause/Unpause switch on the dashboard be out of sync, toggling it once will reset it.
    • Using the button on a BeagleBone-Blue does not trigger the button on the dashboard.
  • Location to modify /path/to/python/code/
    • Car_control.py: car_control init method: self.location.
      • This requires a trailing ‘\’
    • Node-RED change node at the top of the flow named ‘Set Global Path’
      • Done in JSON
      • This requires a trailing ‘\’
  • More settings are currently listed and available than are necessarily useful to edit or view.
  • We are not 100% certain on whether the physical button will properly work when on BeagleBone-Blue, we had difficulty testing the difference between button and dashboard.
  • The code has not been tested with servos enabled.
  • Node-RED does not store the python variables anywhere, they are only accessed and passed through to the destination.
  • Client.py must be executable (Chmod +x)
  • Changing either the Node-RED dashboard or the python code may cause the need to reload the Node-RED dashboard UI webpage.
  • The BlueDonkey systemd service may have issues at boot if it is not delayed.
  • Node-RED Specific:
    • Several debug nodes were created that can be toggled
    • The Node-RED Editor does not automatically update dashboard.json, it must be exported and saved manually.
    • When copying the Node-RED configuration to clipboard (Exporting to update dashboard.json), ui_groups and spacers are not copied unless you copy all flows. Ui_groups will be recreated upon import, but spacers will not, leading to some unformatted dashboard elements.