Struct tinkerforge::segment_display_4x7_bricklet::SegmentDisplay4x7Bricklet

pub struct SegmentDisplay4x7Bricklet { /* fields omitted */ }

Four 7-segment displays with switchable colon

Methods

impl SegmentDisplay4x7Bricklet

pub const DEVICE_IDENTIFIER: u16

pub const DEVICE_DISPLAY_NAME: &'static str

pub fn new<T: GetRequestSender>(
    uid: &str,
    req_sender: T
) -> SegmentDisplay4x7Bricklet

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: SegmentDisplay4x7BrickletFunction
) -> 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: SegmentDisplay4x7BrickletFunction,
    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_api_version(&self) -> [u8; 3]

Returns the version of the API definition (major, minor, revision) implemented by this API bindings. This is neither the release version of this API bindings nor does it tell you anything about the represented Brick or Bricklet.

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

This receiver is triggered when the counter (see start_counter) is finished.

pub fn set_segments(
    &self,
    segments: [u8; 4],
    brightness: u8,
    colon: bool
) -> ConvertingReceiver<()>

The 7-segment display can be set with bitmaps. Every bit controls one segment:

.. image:: /Images/Bricklets/bricklet_segment_display_4x7_bit_order.png :scale: 100 % :alt: Bit order of one segment :align: center

For example to set a 5 you would want to activate segments 0, 2, 3, 5 and 6. This is represented by the number 0b01101101 = 0x6d = 109.

The brightness can be set between 0 (dark) and 7 (bright). The colon parameter turns the colon of the display on or off.

pub fn get_segments(&self) -> ConvertingReceiver<Segments>

Returns the segment, brightness and color data as set by set_segments.

pub fn start_counter(
    &self,
    value_from: i16,
    value_to: i16,
    increment: i16,
    length: u32
) -> ConvertingReceiver<()>

Starts a counter with the from value that counts to the to value with the each step incremented by increment. The length of the increment is given in ms.

Example: If you set from to 0, to to 100, increment to 1 and length to 1000, a counter that goes from 0 to 100 with one second pause between each increment will be started.

The maximum values for from, to and increment is 9999, the minimum value is -999.

Using a negative increment allows to count backwards.

You can stop the counter at every time by calling set_segments.

pub fn get_counter_value(&self) -> ConvertingReceiver<u16>

Returns the counter value that is currently shown on the display.

If there is no counter running a 0 will be returned.

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 SegmentDisplay4x7Bricklet

fn clone(&self) -> SegmentDisplay4x7Bricklet

Returns a copy of the value.

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

Performs copy-assignment from source.