[−][src]Trait adafruit_7segment::SevenSegment

pub trait SevenSegment<E> {
    fn update_buffer_with_digit(&mut self, index: Index, value: u8);

    fn update_buffer_with_dot(&mut self, index: Index, dot_on: bool);

    fn update_buffer_with_colon(&mut self, colon_on: bool);

    fn update_buffer_with_char(
        &mut self, 
        index: Index, 
        value: AsciiChar
    ) -> Result<(), Error>;

    fn update_buffer_with_float(
        &mut self, 
        index: Index, 
        value: f32, 
        fractional_digits: u8, 
        base: u8
    ) -> Result<(), Error>;
}

Trait enabling using the Adafruit 7-segment LED numeric Backpack.

Required methods

fn update_buffer_with_digit(&mut self, index: Index, value: u8)

Update the buffer with a digit value (0 to F) at the specified index.

fn update_buffer_with_dot(&mut self, index: Index, dot_on: bool)

Update the buffer to turn the . on or off at the specified index.

fn update_buffer_with_colon(&mut self, colon_on: bool)

Update the buffer to turn the : on or off.

fn update_buffer_with_char(
    &mut self,
    index: Index,
    value: AsciiChar
) -> Result<(), Error>

Update the buffer with an ascii character at the specified index.

fn update_buffer_with_float(
    &mut self,
    index: Index,
    value: f32,
    fractional_digits: u8,
    base: u8
) -> Result<(), Error>

Update the buffer with a formatted float not starting before the specified index.

Loading content...

Implementations on Foreign Types

impl<I2C, E> SevenSegment<E> for HT16K33<I2C> where
    I2C: Write<Error = E> + WriteRead<Error = E>, [src]

fn update_buffer_with_digit(&mut self, index: Index, value: u8)[src]

Update the buffer with a hex digit value (0x00 to 0x0F) at the specified index

Arguments

  • index - Digit index.
  • value - Value 0x00 to 0x0F.

Examples

use ht16k33::i2c_mock::I2cMock;
use ht16k33::HT16K33;
use adafruit_7segment::{SevenSegment, Index};

// Create an I2C device.
let mut i2c = I2cMock::new();

// The I2C device address.
const DISP_I2C_ADDR: u8 = 112;

let mut ht16k33 = HT16K33::new(i2c, DISP_I2C_ADDR);

// Set first digit to 9.
ht16k33.update_buffer_with_digit(Index::One, 9);

fn update_buffer_with_dot(&mut self, index: Index, dot_on: bool)[src]

Update the buffer to turn the . on or off at the specified index

Arguments

  • index - Digit index.
  • dot_on - Enable or disable the dot.

Examples

use ht16k33::i2c_mock::I2cMock;
use ht16k33::HT16K33;
use adafruit_7segment::{SevenSegment, Index};

// Create an I2C device.
let mut i2c = I2cMock::new();

// The I2C device address.
const DISP_I2C_ADDR: u8 = 112;

let mut ht16k33 = HT16K33::new(i2c, DISP_I2C_ADDR);

// Enable dot for first digit.
ht16k33.update_buffer_with_dot(Index::One, true);

fn update_buffer_with_colon(&mut self, colon_on: bool)[src]

Update the buffer to turn the : on or off.

Arguments

  • colon_on - Enable or disable the colon.

Examples

use ht16k33::i2c_mock::I2cMock;
use ht16k33::HT16K33;
use adafruit_7segment::{SevenSegment, Index};

// Create an I2C device.
let mut i2c = I2cMock::new();

// The I2C device address.
const DISP_I2C_ADDR: u8 = 112;

let mut ht16k33 = HT16K33::new(i2c, DISP_I2C_ADDR);

// Enable the colon.
ht16k33.update_buffer_with_colon(true);

fn update_buffer_with_char(
    &mut self,
    index: Index,
    value: AsciiChar
) -> Result<(), Error>[src]

Update the buffer with an ascii character at the specified index.

Arguments

  • index - Digit index.
  • value - Ascii character.

Examples

use ht16k33::i2c_mock::I2cMock;
use ht16k33::HT16K33;
use adafruit_7segment::{SevenSegment, Index, AsciiChar};

// Create an I2C device.
let mut i2c = I2cMock::new();

// The I2C device address.
const DISP_I2C_ADDR: u8 = 112;

let mut ht16k33 = HT16K33::new(i2c, DISP_I2C_ADDR);

// Set first digit to 'c'.
ht16k33.update_buffer_with_char(Index::One, AsciiChar::new('c')).expect("Failed to encode char to buffer!");

fn update_buffer_with_float(
    &mut self,
    index: Index,
    value: f32,
    fractional_digits: u8,
    base: u8
) -> Result<(), Error>[src]

Update the buffer with a formatted float not starting before the specified index The logic for this is copied mostly from from the adafruit library. Only difference is this allows the start index to be > 0

Arguments

  • index - Digit index.
  • value - float value.
  • fractional_digits - Number of fractional digits.
  • base - Base to use.

Examples

use ht16k33::i2c_mock::I2cMock;
use ht16k33::HT16K33;
use adafruit_7segment::{SevenSegment, Index};

// Create an I2C device.
let mut i2c = I2cMock::new();

// The I2C device address.
const DISP_I2C_ADDR: u8 = 112;

let mut ht16k33 = HT16K33::new(i2c, DISP_I2C_ADDR);

// Write 9.9 from pos 2
ht16k33.update_buffer_with_float(Index::Two, 9.9, 1, 10);
Loading content...

Implementors

Loading content...