EV3 Brick Program - Basically-A-Tank

Overview

Some kinda program for some kind of tanky creation of mine with LEGO, the EV3Brick, and Python 🫠

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General Dev

Versions

• Python: 3.5.3
• Poetry: 1.1.13 (only compatible with >=3.8.1)

To get your local environment setup, fun the following:

$ poetry config cache-dir ./.poetry-cache
$ poetry install

If you're using VS Code, you should additionally create a local .vscode folder with a settings.json file and add the following:

{
    "python.analysis.extraPaths": [
        // replace `ev3-basically-a-tank-aBCDEFGH-py3.8` with the name of the similarly-located folder from your local poetry cache directory
        "./.poetry-cache/virtualenvs/ev3-basically-a-tank-aBCDEFGH-py3.8/lib/python3.8/site-packages"
    ]
}

• Connecting to EV3dev Using SSH

$ ssh robot@ev3dev.local

default password is maker

Printing to VS Code terminal:

• ev3dev/ev3dev#1307

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Debugging Snippets

all_motors = list_devices("dc-motor", "*")

print(("-" * 30) + " all_motors " + ("-" * 30), file=sys.stderr)
    for motor in all_motors:
        print(motor, file=sys.stderr)
        motor_members = getmembers(motor)
        for member_tup in motor_members:
            name, value = member_tup
            print("name: {}".format(name), file=sys.stderr)
            print("value: {}".format(value), file=sys.stderr)

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Quirks

• https://stackoverflow.com/questions/57483794/python-shlex-no-closing-quotations-error-how-to-deal-with
• [Question] How can we ev3devBrowser.download.exclude multiple patterns? #104
  • answer: use ev3devBrowser.download.exclude: "GlobPattern" (see Glob-Patterns)
  • suggested: "ev3devBrowser.download.exclude": "{**/.*/*,**/tests/*}",

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Resources

• ev3dev-lang-python
• python-ev3dev-testfs
• Mindstorms EV3 - Building Instructions