Lego 10303 Loop coaster fully automated and remote controllable

[BMan-21]

I wrote a pybricks program to fully automate or connect to a remote. Pieces needed: City Hub 88009, Technic large motor 88013, and Bluetooth remote 88010 (optional). Enjoy!

from pybricks.hubs import CityHub
from pybricks.pupdevices import Motor, Remote, ColorDistanceSensor
from pybricks.parameters import Button, Color, Direction, Port, Side, Stop
from pybricks.robotics import DriveBase
from pybricks.tools import wait, StopWatch
hub = CityHub()
motor = Motor(Port.B, positive_direction = Direction.CLOCKWISE)
mode = 1
hub.system.set_stop_button(None)
watch = StopWatch()
while watch.time() < 3000:
    if hub.buttons.pressed():
        hub.light.on(Color.GREEN)
        mode = 2
hub.system.set_stop_button(Button.CENTER)
while mode == 1:
    motor.run_time(2000, 27000)
    motor.run_time(-2000, 12000)

        
if mode == 2:
    print("searching for remote...")
    remote = Remote(timeout=5000)
    while True:
        pressed = remote.buttons.pressed()
        if  Button.LEFT_PLUS in pressed:
            motor.run(2000)
        if Button.LEFT_MINUS in pressed:
            motor.run(-2000)
        if Button.LEFT in pressed:
            motor.run(0)
        if  Button.RIGHT_PLUS in pressed:
            motor.run(1000)
        if Button.RIGHT_MINUS in pressed:
            motor.run(-1000)
        if Button.RIGHT in pressed:
            motor.run(0)
  #all code by BMan-21

[laurensvalk]

Sounds like fun! Do you have a video?

[BMan-21]

Sadly, no. What happens is that there are two modes; by pressing the center button on the hub, you can switch between them. Mode 1 is fully automated, while Mode 2 is controlled with the remote. (Sorry for the late answer)

[EclecticInventor]

It's funny that you posted this 2 days before I posted my video! Great minds think alike!

[laurensvalk]

What you beat me by 2 days to be the first fully lego automated roller coaster?!

Here is another one for inspiration. Ours is admittedly not nearly as creative as yours 😄

https://www.youtube.com/watch?v=XyT5AaslSaY

[EclecticInventor]

I totally forgot about this! I know I had seen the video and the code, but it just totally escaped my memory.