Class GyroSensor

ev3dev2.sensor.lego.GyroSensor

LEGO EV3 gyro sensor.

Declaration

class GyroSensor(Sensor)

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Documentation

Methods

▶ def __init__(self, address=None, name_pattern=SYSTEM_DEVICE_NAME_CONVENTION, ...) override
inherited doc Spin through the Linux sysfs class for the device type and find a device that matches the provided name pattern and attributes (if any).
def __init__(
self,
address=None,
name_pattern=SYSTEM_DEVICE_NAME_CONVENTION,
name_exact=False,
**kwargs,
)
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This method overrides ev3dev2.sensor.Sensor.__init__.
Parameters:
class_name: class name of the device, a subdirectory of /sys/class.
For example, 'tacho-motor'.
name_pattern: pattern that device name should match.
For example, 'sensor*' or 'motor*'. Default value: '*'.
name_exact: when True, assume that the name_pattern provided is the
exact device name and use it directly.
keyword arguments: used for matching the corresponding device
attributes. For example, address='outA', or driver_name=['lego-ev3-us', 'lego-nxt-us']. When argument value is a list, then a match against any entry of the list is enough.
Example:
d = ev3dev.Device('tacho-motor', address='outA') s = ev3dev.Device('lego-sensor', driver_name=['lego-ev3-us', 'lego-nxt-us'])
If there was no valid connected device, an error is thrown.
▷ def angle(self) @property
The number of degrees that the sensor has been rotated since it was put into this mode.
@property
def angle(self)
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▷ def angle_and_rate(self) @property
Angle (degrees) and Rotational Speed (degrees/second).
@property
def angle_and_rate(self)
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▷ def calibrate(self)
The robot should be perfectly still when you call this
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▶ def circle_angle(self)
As the gryo rotates clockwise the angle increases, it will increase by 360 for each full rotation. As the gyro rotates counter-clockwise the gyro angle will decrease.
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The angles on a circle have the opposite behavior though, they start at 0 and increase as you move counter-clockwise around the circle.
Convert the gyro angle to the angle on a circle. We consider the initial position of the gyro to be at 90 degrees on the cirlce.
▷ def rate(self) @property
The rate at which the sensor is rotating, in degrees/second.
@property
def rate(self)
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▶ def reset(self)
Resets the angle to 0.
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Caveats:
This function only resets the angle to 0, it does not fix drift.
This function only works on EV3, it does not work on BrickPi, PiStorms, or with any sensor multiplexors.
▷ def tilt_angle(self) @property
@property
def tilt_angle(self)
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▷ def tilt_rate(self) @property
@property
def tilt_rate(self)
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▶ def wait_until_angle_changed_by(self, delta, direction_sensitive=False)
Wait until angle has changed by specified amount.
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If direction_sensitive is True we will wait until angle has changed by delta and with the correct sign.
If direction_sensitive is False (default) we will wait until angle has changed by delta in either direction.

Inherited methods

Methods inherited from ev3dev2.sensor.Sensor:
address, bin_data, bin_data_format, command, commands, decimals, driver_name, mode, modes, num_values, units, value
Methods inherited from ev3dev2.Device:
__lt__, __repr__, __str__, device_index, get_attr_from_set, get_attr_int, get_attr_line, get_attr_set, get_attr_string, get_cached_attr_int, get_cached_attr_set, get_cached_attr_string, set_attr_int, set_attr_raw, set_attr_string

Reexports

Imported in ev3dev2.control.GyroBalancer.