pub trait SevenSegInterface {
type InterfaceError;
// Required method
fn send(&mut self, data: &[u8]) -> Result<(), Error<Self::InterfaceError>>;
// Provided methods
fn set_cursor(&mut self, col: u8) -> Result<(), Error<Self::InterfaceError>> { ... }
fn set_brightness(
&mut self,
bright: u8,
) -> Result<(), Error<Self::InterfaceError>> { ... }
fn clear(&mut self) -> Result<(), Error<Self::InterfaceError>> { ... }
fn write_digit(
&mut self,
digit: u8,
) -> Result<(), Error<Self::InterfaceError>> { ... }
fn write_punctuation(
&mut self,
punct_flags: PunctuationFlags,
) -> Result<(), Error<Self::InterfaceError>> { ... }
fn write_digits(
&mut self,
digits: &[u8],
) -> Result<(), Error<Self::InterfaceError>> { ... }
fn set_num(&mut self, num: u16) -> Result<(), Error<Self::InterfaceError>> { ... }
}Required Associated Types§
Sourcetype InterfaceError
type InterfaceError
A single error type used by the interface
Required Methods§
Provided Methods§
Sourcefn set_cursor(&mut self, col: u8) -> Result<(), Error<Self::InterfaceError>>
fn set_cursor(&mut self, col: u8) -> Result<(), Error<Self::InterfaceError>>
Set the digit cursor to a particular location
col may be 0..=3, from left to right.
Sourcefn set_brightness(
&mut self,
bright: u8,
) -> Result<(), Error<Self::InterfaceError>>
fn set_brightness( &mut self, bright: u8, ) -> Result<(), Error<Self::InterfaceError>>
Set the brightness for the display. The datasheet says that 100 is the brightest, however my device gets brighter with values above 100 (up to 255). Your mileage may vary.
Sourcefn write_digit(&mut self, digit: u8) -> Result<(), Error<Self::InterfaceError>>
fn write_digit(&mut self, digit: u8) -> Result<(), Error<Self::InterfaceError>>
Write a digit to the curent cursor position. This also increments the cursor position
Sourcefn write_punctuation(
&mut self,
punct_flags: PunctuationFlags,
) -> Result<(), Error<Self::InterfaceError>>
fn write_punctuation( &mut self, punct_flags: PunctuationFlags, ) -> Result<(), Error<Self::InterfaceError>>
Write the requested punctuation to the display. This does not take
the current state into account, so any unset flags in punct_flags
will turn the corresponding LEDs off.
Sourcefn write_digits(
&mut self,
digits: &[u8],
) -> Result<(), Error<Self::InterfaceError>>
fn write_digits( &mut self, digits: &[u8], ) -> Result<(), Error<Self::InterfaceError>>
Write the requested digits to the display, starting at the current cursor position. Each digit must be in the range 0x0..=0xF, and up to 4 digits may be updated at once. The cursor is incremented after each digit