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michaelliaomichaelliao
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add smallcar
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‎samples/micropython/smallcar/.vscode/extensions.json‎

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{
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// See http://go.microsoft.com/fwlink/?LinkId=827846 to learn about workspace recommendations.
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// Extension identifier format: ${publisher}.${name}. Example: vscode.csharp
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// List of extensions which should be recommended for users of this workspace.
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"recommendations": [
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"lego-education.ev3-micropython"
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],
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// List of extensions recommended by VS Code that should not be recommended for users of this workspace.
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"unwantedRecommendations": [
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"ms-python.python"
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]
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}

‎samples/micropython/smallcar/.vscode/launch.json‎

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{
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// Use IntelliSense to learn about possible attributes.
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// Hover to view descriptions of existing attributes.
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// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
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"version": "0.2.0",
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"configurations": [
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{
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"name": "Download and Run",
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"type": "ev3devBrowser",
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"request": "launch",
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"program": "/home/robot/${workspaceRootFolderName}/main.py"
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}
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]
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}

‎samples/micropython/smallcar/.vscode/settings.json‎

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// Place your settings in this file to overwrite default and user settings.
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{
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"files.eol": "\n",
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"debug.openDebug": "neverOpen",
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"python.linting.enabled": false,
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"python.formatting.provider": "autopep8"
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}

‎samples/micropython/smallcar/main.py‎

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#!/usr/bin/env pybricks-micropython
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from pybricks import ev3brick as brick
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from pybricks.ev3devices import (Motor, TouchSensor, ColorSensor, InfraredSensor, UltrasonicSensor, GyroSensor)
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from pybricks.parameters import (Port, Stop, Direction, Button, Color, SoundFile, ImageFile, Align)
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from pybricks.tools import print, wait, StopWatch
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from pybricks.robotics import DriveBase
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# Write your program here
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motor = Motor(Port.B)
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ultrasonic = UltrasonicSensor(Port.S4)
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brick.sound.beep()
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brick.light(None)
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speed = 0
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colors = [None, Color.GREEN, Color.YELLOW, Color.RED]
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def setSpeed(acc):
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global speed
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if acc < 0:
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speed = max(0, speed - 1)
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elif acc > 0:
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speed = min(3, speed + 1)
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else:
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speed = 0
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if speed > 0:
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motor.run(speed * 90)
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else:
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motor.stop()
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brick.light(colors[speed])
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while True:
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if not any(brick.buttons()):
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wait(10)
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else:
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if Button.LEFT in brick.buttons():
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setSpeed(-1)
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elif Button.RIGHT in brick.buttons():
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setSpeed(1)
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elif Button.CENTER in brick.buttons():
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setSpeed(0)
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elif Button.UP in brick.buttons():
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setSpeed(0)
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break
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wait(500)
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if ultrasonic.distance() < 200:
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setSpeed(0)
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brick.sound.beep()

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