Struct Matrix

pub struct Matrix<OP: OutputPin, IP: InputPin + Wait, T: Fn(usize, usize) -> Option<(usize, usize)>, const OUTPUT_PIN_COUNT: usize, const INPUT_PIN_COUNT: usize, const ROWS: usize, const COLS: usize> { /* private fields */ }

Matrix scanner

NOTE: COLS const generic is the number of columns. Though you can set this value same as specified in [rktk::::config::static_config::Keyboard::cols], for split keyboard, this also can be set to “columns of the half keyboard”. By using this value, you can save memory usage.

Implementations

impl<OP: OutputPin, IP: InputPin + Wait, T: Fn(usize, usize) -> Option<(usize, usize)>, const OUTPUT_PIN_COUNT: usize, const INPUT_PIN_COUNT: usize, const ROWS: usize, const COLS: usize> Matrix<OP, IP, T, OUTPUT_PIN_COUNT, INPUT_PIN_COUNT, ROWS, COLS>

pub fn new( output_pins: [OP; OUTPUT_PIN_COUNT], input_pins: [IP; INPUT_PIN_COUNT], map_key_pos: T, scan_delay: Option<Duration>, ) -> Self

Initialize the scanner.

Arguments

• output_pins: Output pins to control the matrix.
• input_pins: Input pins to read the matrix.
• left_detect_key: The (logical, not pin index) key position to detect the hand.
• map_key: Function to map key position from pin index. This function must return position within specified ROWS and COLS. Signature: (input_pin_idx, output_pin_idx) -> Option<(row, col)>

• scan_delay: Delay between output pin change and input read. This is executed for each col/row so, this should be short enough to scan the matrix in a reasonable time. Default: 5us

Trait Implementations

impl<OP: OutputPin, IP: InputPin + Wait, T: Fn(usize, usize) -> Option<(usize, usize)>, const OUTPUT_PIN_COUNT: usize, const INPUT_PIN_COUNT: usize, const ROWS: usize, const COLS: usize> KeyscanDriver for Matrix<OP, IP, T, OUTPUT_PIN_COUNT, INPUT_PIN_COUNT, ROWS, COLS>

async fn scan(&mut self, cb: impl FnMut(KeyChangeEvent))

Scans a key and returns the delta from the previous key scan