ws2812b_matrix.c File Reference

Implementation of ws2812b diode matrix handling module. More...

#include "ws2812b.h"
#include "ws2812b_matrix.h"

Include dependency graph for ws2812b_matrix.c:

Functions
void	ws2812b_matrix_set_coord (uint8_t x, uint8_t y, uint8_t R, uint8_t G, uint8_t B)
	Sets diode of chosen coordinates to specified RGB color.
void	ws2812b_matrix_fill (uint8_t R, uint8_t G, uint8_t B, uint8_t delay, bool update)
	Fills diode matrix with one chosen color.

Detailed Description

Implementation of ws2812b diode matrix handling module.

Author

bslrd

Date

2026

SPDX-License-Identifier: MIT

Function Documentation

ws2812b_matrix_fill()

void ws2812b_matrix_fill	(	uint8_t	R,
		uint8_t	G,
		uint8_t	B,
		uint8_t	delay,
		bool	update )

Fills diode matrix with one chosen color.

Parameters

R	R value of color (0 to 255)
G	G value of color (0 to 255)
B	B value of color (0 to 255)
delay	value of delay in ms between each diode state change (use only with update = true)
update	specifies if this function should update physical diode state.

Note

Stores RGB value in internal buffer (ws2812b_color); does not update physical LEDs unless update = true.

Here is the call graph for this function:

ws2812b_matrix_set_coord()

void ws2812b_matrix_set_coord	(	uint8_t	x,
		uint8_t	y,
		uint8_t	R,
		uint8_t	G,
		uint8_t	B )

Sets diode of chosen coordinates to specified RGB color.

Parameters

x	horizontal coordinate of chosen diode (0 to MATRIX_DIM -1)
y	vertical coordinate of chosen diode (0 to MATRIX_DIM -1)
R	R value of color (0-255)
G	G value of color (0-255)
B	B value of color (0-255)

Note

Stores RGB value in internal buffer (ws2812b_color); does not update physical LEDs.

Coordinate mapping depends on physical wiring (zigzag layout assumed).

Here is the call graph for this function: