Detect one certain button in the remote is realeased

[JobadSayas]

Hi, I am trying to active trigger an action when the button is pressed, but to stop it when I stop pressing that button.

In this case is action is running the motors A & B while pressing the button, then when releasing the key stop it. I am trying to do it by using a variable to move or stop the motors because I want to have also the ability to move the motors not only by holding the buttons in the traditional way, but because I want to have the ability to move the motors in other ways like running for specific time, etc. Basically having manual driving mode (holding the buttons) or self driving.

I have tried using something like this, but doesn't work:

from pybricks.pupdevices import Motor, Remote, Light
from pybricks.parameters import Port, Direction, Stop, Button, Color
from pybricks.tools import wait
from pybricks.hubs import MoveHub

global mover
mover = False

MotorA = Motor(Port.A)
MotorB = Motor(Port.B)

remote = Remote()

def remoteButtons(b):
    global mover

    if Button.LEFT_PLUS in b:
        mover = True
    elif Button.LEFT_PLUS not in b:
        mover = False

while True:
    # Wait until a button is pressed.
    pressed = ()
    while not pressed:
        pressed = remote.buttons.pressed()
        remoteButtons(pressed)

    # Wait until all buttons are released.
    while pressed:
        pressed = remote.buttons.pressed()
        remoteButtons(pressed)

    if mover is True:
        MotorA.run(50)
        MotorB.run(-50)

    if mover is False:
        MotorA.stop()
        MotorB.stop()

[dlech]

This is how I like to do it. It uses a generator function to create a "stream" of events.

from pybricks.pupdevices import Remote, Motor
from pybricks.parameters import Button, Port


SPEED = 400

motor = Motor(Port.A)
remote = Remote()


def button_events(buttons):
    """
    Yields a tuple of a ``Button`` and a ``bool`` each time a button
    in *buttons* changes state. When the button is pressed, the second
    value in the tuple is ``True`` and when the button is released,
    the second value in the tuple is ``False.

    Args
        buttons:
            A list of buttons we are interested in receiving events from.
            Buttons not in the list will be ignored.
    """
    was_pressed = ()

    while True:
        pressed = remote.buttons.pressed()

        for b in buttons:
            if b in pressed and b not in was_pressed:
                # if a button was previously not pressed
                # but is pressed now, emit a "pressed"
                # event
                yield b, True
            elif b not in pressed and b in was_pressed:
                # if a button was previously pressed
                # and is not pressed now, emit a "released"
                # event
                yield b, False

        was_pressed = pressed
        


for button, is_pressed in button_events([Button.LEFT_PLUS, Button.LEFT_MINUS]):
    if button == Button.LEFT_PLUS:
        if is_pressed:
            motor.run(SPEED)
        else:
            motor.stop()

    elif button == Button.LEFT_MINUS:
        if is_pressed:
            motor.run(-SPEED)
        else:
            motor.stop()

[JobadSayas]

Wow! this works absolutely awesome! I would never come to this solution, you know them all man!, thanks!