Struct tinkerforge::joystick_bricklet::JoystickBricklet

pub struct JoystickBricklet { /* private fields */ }

2-axis joystick with push-button

Implementations

impl JoystickBricklet

pub const DEVICE_IDENTIFIER: u16 = 210u16

pub const DEVICE_DISPLAY_NAME: &'static str = "Joystick Bricklet"

pub fn new(uid: &str, ip_connection: &IpConnection) -> JoystickBricklet

Creates an object with the unique device ID uid. This object can then be used after the IP Connection ip_connection is connected.

pub fn get_response_expected(
    &mut self,
    fun: JoystickBrickletFunction
) -> Result<bool, GetResponseExpectedError>

Returns the response expected flag for the function specified by the function ID parameter. It is true if the function is expected to send a response, false otherwise.

For getter functions this is enabled by default and cannot be disabled, because those functions will always send a response. For callback configuration functions it is enabled by default too, but can be disabled by set_response_expected. For setter functions it is disabled by default and can be enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

See set_response_expected for the list of function ID constants available for this function.

pub fn set_response_expected(
    &mut self,
    fun: JoystickBrickletFunction,
    response_expected: bool
) -> Result<(), SetResponseExpectedError>

Changes the response expected flag of the function specified by the function ID parameter. This flag can only be changed for setter (default value: false) and callback configuration functions (default value: true). For getter functions it is always enabled.

Enabling the response expected flag for a setter function allows to detect timeouts and other error conditions calls of this setter as well. The device will then send a response for this purpose. If this flag is disabled for a setter function then no response is send and errors are silently ignored, because they cannot be detected.

pub fn set_response_expected_all(&mut self, response_expected: bool)

Changes the response expected flag for all setter and callback configuration functions of this device at once.

pub fn get_position_callback_receiver(
    &self
) -> ConvertingCallbackReceiver<PositionEvent>

This receiver is triggered periodically with the period that is set by Set Position Receiver Period. The parameter is the position of the Joystick.

The get_position_callback_receiver receiver is only triggered if the position has changed since the last triggering.

pub fn get_analog_value_callback_receiver(
    &self
) -> ConvertingCallbackReceiver<AnalogValueEvent>

This receiver is triggered periodically with the period that is set by Set Analog Value Receiver Period. The parameters are the analog values of the Joystick.

The get_analog_value_callback_receiver receiver is only triggered if the values have changed since the last triggering.

pub fn get_position_reached_callback_receiver(
    &self
) -> ConvertingCallbackReceiver<PositionReachedEvent>

This receiver is triggered when the threshold as set by Set Position Receiver Threshold is reached. The parameters are the position of the Joystick.

If the threshold keeps being reached, the receiver is triggered periodically with the period as set by Set Debounce Period.

pub fn get_analog_value_reached_callback_receiver(
    &self
) -> ConvertingCallbackReceiver<AnalogValueReachedEvent>

This receiver is triggered when the threshold as set by Set Analog Value Receiver Threshold is reached. The parameters are the analog values of the Joystick.

If the threshold keeps being reached, the receiver is triggered periodically with the period as set by Set Debounce Period.

pub fn get_pressed_callback_receiver(&self) -> ConvertingCallbackReceiver<()>

This receiver is triggered when the button is pressed.

pub fn get_released_callback_receiver(&self) -> ConvertingCallbackReceiver<()>

This receiver is triggered when the button is released.

pub fn get_position(&self) -> ConvertingReceiver<Position>

Returns the position of the Joystick. The value ranges between -100 and 100 for both axis. The middle position of the joystick is x=0, y=0. The returned values are averaged and calibrated (see Calibrate).

If you want to get the position periodically, it is recommended to use the get_position_callback_receiver receiver and set the period with Set Position Receiver Period.

pub fn is_pressed(&self) -> ConvertingReceiver<bool>

Returns true if the button is pressed and false otherwise.

It is recommended to use the get_pressed_callback_receiver and get_released_callback_receiver receivers to handle the button.

pub fn get_analog_value(&self) -> ConvertingReceiver<AnalogValue>

Returns the values as read by a 12-bit analog-to-digital converter. The values are between 0 and 4095 for both axis.

Note

The values returned by Get Position are averaged over several samples to yield less noise, while Get Analog Value gives back raw unfiltered analog values. The only reason to use Get Analog Value is, if you need the full resolution of the analog-to-digital converter.

If you want the analog values periodically, it is recommended to use the get_analog_value_callback_receiver receiver and set the period with Set Analog Value Receiver Period.

pub fn calibrate(&self) -> ConvertingReceiver<()>

Calibrates the middle position of the Joystick. If your Joystick Bricklet does not return x=0 and y=0 in the middle position, call this function while the Joystick is standing still in the middle position.

The resulting calibration will be saved on the EEPROM of the Joystick Bricklet, thus you only have to calibrate it once.

pub fn set_position_callback_period(&self, period: u32) -> ConvertingReceiver<()>

Sets the period in ms with which the get_position_callback_receiver receiver is triggered periodically. A value of 0 turns the receiver off.

The get_position_callback_receiver receiver is only triggered if the position has changed since the last triggering.

The default value is 0.

pub fn get_position_callback_period(&self) -> ConvertingReceiver<u32>

Returns the period as set by Set Position Receiver Period.

pub fn set_analog_value_callback_period(
    &self,
    period: u32
) -> ConvertingReceiver<()>

Sets the period in ms with which the get_analog_value_callback_receiver receiver is triggered periodically. A value of 0 turns the receiver off.

The get_analog_value_callback_receiver receiver is only triggered if the analog values have changed since the last triggering.

The default value is 0.

pub fn get_analog_value_callback_period(&self) -> ConvertingReceiver<u32>

Returns the period as set by Set Analog Value Receiver Period.

pub fn set_position_callback_threshold(
    &self,
    option: char,
    min_x: i16,
    max_x: i16,
    min_y: i16,
    max_y: i16
) -> ConvertingReceiver<()>

Sets the thresholds for the get_position_reached_callback_receiver receiver.

The following options are possible:

Option	Description
‘x’	Receiver is turned off
‘o’	Receiver is triggered when the position is outside the min and max values
‘i’	Receiver is triggered when the position is inside the min and max values
‘<’	Receiver is triggered when the position is smaller than the min values (max is ignored)
‘>’	Receiver is triggered when the position is greater than the min values (max is ignored)

The default value is (‘x’, 0, 0, 0, 0).

Associated constants:

• JOYSTICKBRICKLET_THRESHOLD_OPTION_OFF
• JOYSTICKBRICKLET_THRESHOLD_OPTION_OUTSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_INSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_SMALLER
• JOYSTICKBRICKLET_THRESHOLD_OPTION_GREATER

pub fn get_position_callback_threshold(
    &self
) -> ConvertingReceiver<PositionCallbackThreshold>

Returns the threshold as set by Set Position Receiver Threshold.

Associated constants:

• JOYSTICKBRICKLET_THRESHOLD_OPTION_OFF
• JOYSTICKBRICKLET_THRESHOLD_OPTION_OUTSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_INSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_SMALLER
• JOYSTICKBRICKLET_THRESHOLD_OPTION_GREATER

pub fn set_analog_value_callback_threshold(
    &self,
    option: char,
    min_x: u16,
    max_x: u16,
    min_y: u16,
    max_y: u16
) -> ConvertingReceiver<()>

Sets the thresholds for the get_analog_value_reached_callback_receiver receiver.

The following options are possible:

Option	Description
‘x’	Receiver is turned off
‘o’	Receiver is triggered when the analog values are outside the min and max values
‘i’	Receiver is triggered when the analog values are inside the min and max values
‘<’	Receiver is triggered when the analog values are smaller than the min values (max is ignored)
‘>’	Receiver is triggered when the analog values are greater than the min values (max is ignored)

The default value is (‘x’, 0, 0, 0, 0).

Associated constants:

• JOYSTICKBRICKLET_THRESHOLD_OPTION_OFF
• JOYSTICKBRICKLET_THRESHOLD_OPTION_OUTSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_INSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_SMALLER
• JOYSTICKBRICKLET_THRESHOLD_OPTION_GREATER

pub fn get_analog_value_callback_threshold(
    &self
) -> ConvertingReceiver<AnalogValueCallbackThreshold>

Returns the threshold as set by Set Analog Value Receiver Threshold.

Associated constants:

• JOYSTICKBRICKLET_THRESHOLD_OPTION_OFF
• JOYSTICKBRICKLET_THRESHOLD_OPTION_OUTSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_INSIDE
• JOYSTICKBRICKLET_THRESHOLD_OPTION_SMALLER
• JOYSTICKBRICKLET_THRESHOLD_OPTION_GREATER

pub fn set_debounce_period(&self, debounce: u32) -> ConvertingReceiver<()>

Sets the period in ms with which the threshold receivers

• get_position_reached_callback_receiver,
• get_analog_value_reached_callback_receiver

are triggered, if the thresholds

• Set Position Receiver Threshold,
• Set Analog Value Receiver Threshold

keep being reached.

The default value is 100.

pub fn get_debounce_period(&self) -> ConvertingReceiver<u32>

Returns the debounce period as set by Set Debounce Period.

pub fn get_identity(&self) -> ConvertingReceiver<Identity>

Returns the UID, the UID where the Bricklet is connected to, the position, the hardware and firmware version as well as the device identifier.

The position can be ‘a’, ‘b’, ‘c’ or ‘d’.

The device identifier numbers can be found here. |device_identifier_constant|

Trait Implementations

impl Clone for JoystickBricklet

fn clone(&self) -> JoystickBricklet

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.