[−][src]Trait tiny_led_matrix::DisplayControl
The interface that Display
needs to work with an LED matrix.
Assumes the matrix is organised by rows and columns, in such a way that LEDs from at most one row are lit at any time.
Required methods
fn initialise_for_display(&mut self)
Performs any required hardware initialisation.
This is intended to be called once, before using a display with this DisplayControl.
fn display_row_leds(&mut self, row: usize, cols: u32)
Lights LEDs in a single matrix row.
In the specified row, lights exactly the LEDs listed in cols
.
Turns off all LEDs in the other matrix rows.
In cols
, the least-significant bit represents column 0, and so on.
fn light_current_row_leds(&mut self, cols: u32)
Lights additional LEDs in the current matrix row.
Affects the row most recently passed to display_row_leds()
.
Lights the LEDs listed in cols
, in addition to any already lit.
In cols
, the least-significant bit represents column 0, and so on.