Struct tinkerforge::rotary_encoder_bricklet::RotaryEncoderBricklet

pub struct RotaryEncoderBricklet { /* private fields */ }

360° rotary encoder with push-button

Implementations

impl RotaryEncoderBricklet

pub const DEVICE_IDENTIFIER: u16 = 236u16

pub const DEVICE_DISPLAY_NAME: &'static str = "Rotary Encoder Bricklet"

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

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: RotaryEncoderBrickletFunction
) -> 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: RotaryEncoderBrickletFunction,
    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_count_callback_receiver(&self) -> ConvertingCallbackReceiver<i32>

This receiver is triggered periodically with the period that is set by Set Count Receiver Period. The parameter is the count of the encoder.

The get_count_callback_receiver receiver is only triggered if the count has changed since the last triggering.

pub fn get_count_reached_callback_receiver(
    &self
) -> ConvertingCallbackReceiver<i32>

This receiver is triggered when the threshold as set by Set Count Receiver Threshold is reached. The parameter is the count of the encoder.

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_count(&self, reset: bool) -> ConvertingReceiver<i32>

Returns the current count of the encoder. If you set reset to true, the count is set back to 0 directly after the current count is read.

The encoder has 24 steps per rotation

Turning the encoder to the left decrements the counter, so a negative count is possible.

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

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

The get_count_callback_receiver receiver is only triggered if the count has changed since the last triggering.

The default value is 0.

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

Returns the period as set by Set Count Receiver Period.

pub fn set_count_callback_threshold(
    &self,
    option: char,
    min: i32,
    max: i32
) -> ConvertingReceiver<()>

Sets the thresholds for the get_count_reached_callback_receiver receiver.

The following options are possible:

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

The default value is (‘x’, 0, 0).

Associated constants:

• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_OFF
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_OUTSIDE
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_INSIDE
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_SMALLER
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_GREATER

pub fn get_count_callback_threshold(
    &self
) -> ConvertingReceiver<CountCallbackThreshold>

Returns the threshold as set by Set Count Receiver Threshold.

Associated constants:

• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_OFF
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_OUTSIDE
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_INSIDE
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_SMALLER
• ROTARY_ENCODERBRICKLET_THRESHOLD_OPTION_GREATER

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

Sets the period in ms with which the threshold receiver

• get_count_reached_callback_receiver

is triggered, if the thresholds

• Set Count Receiver Threshold

keeps 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 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_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 RotaryEncoderBricklet

fn clone(&self) -> RotaryEncoderBricklet

Returns a copy of the value.

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

Performs copy-assignment from source.