Class MoveSteering

ev3dev2.motor.MoveSteering

Controls a pair of motors simultaneously, via a single "steering" value and a speed.

Declaration

class MoveSteering(MoveTank)

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Documentation

steering [-100, 100]:

-100 means turn left on the spot (right motor at 100% forward, left motor at 100% backward),
0 means drive in a straight line, and
100 means turn right on the spot (left motor at 100% forward, right motor at 100% backward).

"steering" can be any number between -100 and 100.

Example:

steering_drive = MoveSteering(OUTPUT_A, OUTPUT_B)
# drive in a turn for 10 rotations of the outer motor
steering_drive.on_for_rotations(-20, SpeedPercent(75), 10)

Methods

▶ def get_speed_steering(self, steering, speed)
Calculate the speed_sp for each motor in a pair to achieve the specified
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steering. Note that calling this function alone will not make the motors move, it only calculates the speed. A run_* function must be called afterwards to make the motors move.
steering [-100, 100]:
-100 means turn left on the spot (right motor at 100% forward, left motor at 100% backward),
0 means drive in a straight line, and
100 means turn right on the spot (left motor at 100% forward, right motor at 100% backward).
speed:
The speed that should be applied to the outmost motor (the one rotating faster). The speed of the other motor will be computed automatically.
▶ def on(self, steering, speed) override
Start rotating the motors according to the provided ``steering`` and ``speed`` forever.
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This method overrides ev3dev2.motor.MoveTank.on.
▶ def on_for_degrees(self, steering, speed, degrees, brake=True, block=True) override
Rotate the motors according to the provided ``steering``.
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This method overrides ev3dev2.motor.MoveTank.on_for_degrees.
The distance each motor will travel follows the rules of :meth:`MoveTank.on_for_degrees`.
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▶ def on_for_rotations(self, steering, speed, rotations, brake=True, block=True) override
Rotate the motors according to the provided ``steering``.
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This method overrides ev3dev2.motor.MoveTank.on_for_rotations.
The distance each motor will travel follows the rules of :meth:`MoveTank.on_for_rotations`.
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▶ def on_for_seconds(self, steering, speed, seconds, brake=True, block=True) override
Rotate the motors according to the provided ``steering`` for ``seconds``.
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This method overrides ev3dev2.motor.MoveTank.on_for_seconds.

Inherited methods

Methods inherited from ev3dev2.motor.MoveTank:
__init__, cs, follow_gyro_angle, follow_line, gyro, turn_degrees, turn_left, turn_right
Methods inherited from ev3dev2.motor.MotorSet:
__str__, is_holding, is_overloaded, is_ramping, is_running, is_stalled, off, reset, run_direct, run_forever, run_timed, run_to_abs_pos, run_to_rel_pos, set_args, set_polarity, stop, wait, wait_until, wait_until_not_moving, wait_while