#include <stdio.h>
#include <stdbool.h>
#include <stdint.h>

Functions
static void	put_pixel (uint32_t pixel_grb)
	Put pixel to the LED strip.

void	set_all_leds (uint32_t color, uint32_t len)
	Set all leds to the same color.

void	turn_off_all (uint32_t len)
	Turn off all leds.

uint32_t	get_red (uint8_t brightness)
	Get red color.

uint32_t	get_green (uint8_t brightness)
	Get green color.

uint32_t	get_blue (uint8_t brightness)
	Get blue color.

uint32_t	get_white (uint8_t brightness)
	Get white color.

uint32_t	get_purple (uint8_t brightness)
	Get purple color.

uint32_t	get_yellow (uint8_t brightness)
	Get yellow color.

uint32_t	get_cyan (uint8_t brightness)
	Get cyan color.

uint32_t	get_orange (uint8_t brightness)
	Get orange color.

uint32_t	get_pink (uint8_t brightness)
	Get pink color.

uint32_t	get_turquoise (uint8_t brightness)
	Get turquoise color.

uint32_t	get_magenta (uint8_t brightness)
	Get magenta color.

void	set_all_red (uint32_t len, uint8_t brightness)
	Set all leds to red.

void	set_all_green (uint32_t len, uint8_t brightness)
	Set all leds to green.

void	set_all_blue (uint32_t len, uint8_t brightness)
	Set all leds to blue.

void	set_all_white (uint32_t len, uint8_t brightness)
	Set all leds to white.

void	set_rainbow_spectrum (uint32_t len)
	Set all leds to rainbow spectrum.

void	set_all_purple (uint32_t len, uint8_t brightness)
	Set all leds purple.

void	set_all_yellow (uint32_t len, uint8_t brightness)
	Set all leds yellow.

void	set_all_cyan (uint32_t len, uint8_t brightness)
	Set all leds cyan.

void	set_all_orange (uint32_t len, uint8_t brightness)
	Set all leds orange.

void	set_all_pink (uint32_t len, uint8_t brightness)
	Set all leds pink.

void	set_all_turquoise (uint32_t len, uint8_t brightness)
	Set all leds turquoise.

void	set_all_magenta (uint32_t len, uint8_t brightness)
	Set all leds magenta.

void	apply_rainbow_wheel_effect (uint32_t len, uint16_t base_hue, uint8_t speed_factor, uint8_t density_factor, volatile uint8_t brightness)
	Apply rainbow wheel effect.

void	apply_rainbow_cycle_effect (uint32_t len, uint16_t hue, uint8_t speed_factor, volatile uint8_t *brightness)
	Apply rainbow cycle effect.

void	apply_breathing_effect (uint32_t len, uint8_t speed_factor, uint32_t color, volatile uint8_t base_brightness, uint8_t brightness, bool *breathing_up)
	Apply breathing effect.

void	apply_flashing_effect (uint32_t len, uint32_t *color)
	Apply flashing effect.

Function Documentation

◆ apply_breathing_effect()

void apply_breathing_effect	(	uint32_t	len,
		uint8_t *	speed_factor,
		uint32_t *	color,
		volatile uint8_t *	base_brightness,
		uint8_t *	brightness,
		bool *	breathing_up
	)

Apply breathing effect.

Parameters

len	number of leds
speed_factor	speed factor
color	color
base_brightness	base brightness
brightness	brightness
breathing_up	breathing up

Definition at line 184 of file ws2812b.c.

{
    uint8_t min_brightness = 15;
    uint8_t max_brightness = *base_brightness;
    if (max_brightness < min_brightness)
        max_brightness = min_brightness;
    for (uint32_t i = 0; i < len; ++i)
    {
        uint8_t r = URGB_R(*color);
        uint8_t g = URGB_G(*color);
        uint8_t b = URGB_B(*color);
        uint32_t color = URGB(r * *brightness / 255, g * *brightness / 255, b * *brightness / 255);
        put_pixel(color);
    }
    if (*brightness >= max_brightness)
    {
        *breathing_up = false;
        *brightness = max_brightness;
    }
    else if (*brightness <= min_brightness)
    {
        *breathing_up = true;
        *brightness = min_brightness;
    }
    if (*breathing_up)
        *brightness += *speed_factor;
    else
        *brightness -= *speed_factor;
}

References put_pixel(), URGB, URGB_B, URGB_G, and URGB_R.

Referenced by run_loop().

◆ apply_flashing_effect()

void apply_flashing_effect	(	uint32_t	len,
		uint32_t *	color
	)

Apply flashing effect.

Parameters

len	number of leds
led_values	led values
color	color

Definition at line 214 of file ws2812b.c.

{
    srand(time(NULL));
    int num_led_flash = 10;
    int *random_indices = (int *)malloc(num_led_flash * sizeof(int));
    for (int i = 0; i < num_led_flash; ++i)
        random_indices[i] = rand() % len;
    int leds_handled = 0;
    while (leds_handled < len)
    {
        int i = 0;
        if (random_indices[i] == leds_handled)
        {
            uint32_t new_color;
            if (!color)
                new_color = URGB(rand() % 256, rand() % 256, rand() % 256);
            else
            {
                uint8_t r = URGB_R(*color);
                uint8_t g = URGB_G(*color);
                uint8_t b = URGB_B(*color);
                new_color = URGB(r, g, b);
            }
            put_pixel(new_color);
            i++;
            if (i >= num_led_flash)
                break;
        }
        else
            put_pixel(0);
        leds_handled++;
    }
}

References put_pixel(), URGB, URGB_B, URGB_G, and URGB_R.

Referenced by run_loop().

◆ apply_rainbow_cycle_effect()

void apply_rainbow_cycle_effect	(	uint32_t	len,
		uint16_t *	hue,
		uint8_t *	speed_factor,
		volatile uint8_t *	brightness
	)

Apply rainbow cycle effect.

Parameters

len	number of leds
hue	hue
speed_factor	speed factor
brightness	brightness

Definition at line 174 of file ws2812b.c.

{
    for (uint32_t i = 0; i < len; ++i)
    {
        uint32_t color = hsv_to_rgb(*hue, 255, *brightness);
        put_pixel(color);
    }
    *hue += *speed_factor;
}

References hsv_to_rgb(), and put_pixel().

Referenced by run_loop().

◆ apply_rainbow_wheel_effect()

void apply_rainbow_wheel_effect	(	uint32_t	len,
		uint16_t *	base_hue,
		uint8_t *	speed_factor,
		uint8_t *	density_factor,
		volatile uint8_t *	brightness
	)

Apply rainbow wheel effect.

Parameters

len	number of leds
base_hue	base hue
speed_factor	speed factor
density_factor	density factor
brightness	brightness

Definition at line 160 of file ws2812b.c.

{
    for (uint32_t i = 0; i < len; ++i)
    {
        uint16_t hue = (*base_hue + i * 360 / len * *density_factor) % 360;
        uint32_t color = hsv_to_rgb(hue, 255, *brightness);
        put_pixel(color);
        hue++;
    }
    *speed_factor = rand() % 3 + 6; // 6, 7, 8
    *base_hue += *speed_factor;
    *base_hue %= 360;
}

References hsv_to_rgb(), and put_pixel().

Referenced by run_loop().

◆ get_blue()

uint32_t get_blue ( uint8_t brightness )

Get blue color.

Parameters

brightness brightness

Returns: blue color in RGB format

Definition at line 40 of file ws2812b.c.

{
    return URGB(0, 0, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_cyan()

uint32_t get_cyan ( uint8_t brightness )

Get cyan color.

Parameters

brightness brightness

Returns: cyan color in RGB format

Definition at line 60 of file ws2812b.c.

{
    return URGB(0, brightness, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_green()

uint32_t get_green ( uint8_t brightness )

Get green color.

Parameters

brightness brightness

Returns: green color in RGB format

Definition at line 35 of file ws2812b.c.

{
    return URGB(0, brightness, 0);
}

References URGB.

Referenced by get_current_color().

◆ get_magenta()

uint32_t get_magenta ( uint8_t brightness )

Get magenta color.

Parameters

brightness brightness

Returns: magenta color in RGB format

Definition at line 80 of file ws2812b.c.

{
    return URGB(brightness, 0, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_orange()

uint32_t get_orange ( uint8_t brightness )

Get orange color.

Parameters

brightness brightness

Returns: orange color in RGB format

Definition at line 65 of file ws2812b.c.

{
    return URGB(brightness, brightness / 3, 0);
}

References URGB.

Referenced by get_current_color().

◆ get_pink()

uint32_t get_pink ( uint8_t brightness )

Get pink color.

Parameters

brightness brightness

Returns: pink color in RGB format

Definition at line 70 of file ws2812b.c.

{
    return URGB(brightness, brightness / 3, brightness / 3);
}

References URGB.

Referenced by get_current_color().

◆ get_purple()

uint32_t get_purple ( uint8_t brightness )

Get purple color.

Parameters

brightness brightness

Returns: purple color in RGB format

Definition at line 50 of file ws2812b.c.

{
    return URGB(brightness * 3 / 4, 0, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_red()

uint32_t get_red ( uint8_t brightness )

Get red color.

Parameters

brightness brightness

Returns: red color in RGB format

Definition at line 30 of file ws2812b.c.

{
    return URGB(brightness, 0, 0);
}

References URGB.

Referenced by get_current_color().

◆ get_turquoise()

uint32_t get_turquoise ( uint8_t brightness )

Get turquoise color.

Parameters

brightness brightness

Returns: turquoise color in RGB format

Definition at line 75 of file ws2812b.c.

{
    return URGB(brightness / 3, brightness * 2 / 3, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_white()

uint32_t get_white ( uint8_t brightness )

Get white color.

Parameters

brightness brightness

Returns: white color in RGB format

Definition at line 45 of file ws2812b.c.

{
    return URGB(brightness, brightness, brightness);
}

References URGB.

Referenced by get_current_color().

◆ get_yellow()

uint32_t get_yellow ( uint8_t brightness )

Get yellow color.

Parameters

brightness brightness

Returns: yellow color in RGB format

Definition at line 55 of file ws2812b.c.

{
    return URGB(brightness, brightness, 0);
}

References URGB.

Referenced by get_current_color().

◆ put_pixel()

static void put_pixel ( uint32_t pixel_grb )

inlinestatic

Put pixel to the LED strip.

Parameters

pixel_grb pixel color in GRB format

◆ set_all_blue()

void set_all_blue	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds to blue.

Parameters

len	number of leds
brightness	brightness

Definition at line 97 of file ws2812b.c.

{
    uint32_t blue = URGB(0, 0, brightness);
    set_all_leds(blue, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_cyan()

void set_all_cyan	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds cyan.

Parameters

len	number of leds
brightness	brightness

Definition at line 121 of file ws2812b.c.

{
    uint32_t cyan = URGB(0, brightness, brightness);
    set_all_leds(cyan, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_green()

void set_all_green	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds to green.

Parameters

len	number of leds
brightness	brightness

Definition at line 91 of file ws2812b.c.

{
    uint32_t green = URGB(0, brightness, 0);
    set_all_leds(green, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_leds()

void set_all_leds	(	uint32_t	color,
		uint32_t	len
	)

Set all leds to the same color.

Parameters

color	color in RGB format
len	number of leds

Definition at line 15 of file ws2812b.c.

{
    for (uint32_t i = 0; i < len; ++i)
    {
        put_pixel(color);
    }
}

References put_pixel().

Referenced by set_all_blue(), set_all_cyan(), set_all_green(), set_all_magenta(), set_all_orange(), set_all_pink(), set_all_purple(), set_all_red(), set_all_turquoise(), set_all_white(), set_all_yellow(), and turn_off_all().

◆ set_all_magenta()

void set_all_magenta	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds magenta.

Parameters

len	number of leds
brightness	brightness

Definition at line 145 of file ws2812b.c.

{
    uint32_t magenta = URGB(brightness, 0, brightness);
    set_all_leds(magenta, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_orange()

void set_all_orange	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds orange.

Parameters

len	number of leds
brightness	brightness

Definition at line 127 of file ws2812b.c.

{
    uint32_t orange = URGB(brightness, brightness / 3, 0);
    set_all_leds(orange, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_pink()

void set_all_pink	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds pink.

Parameters

len	number of leds
brightness	brightness

Definition at line 133 of file ws2812b.c.

{
    uint32_t pink = URGB(brightness, brightness / 3, brightness / 3);
    set_all_leds(pink, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_purple()

void set_all_purple	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds purple.

Parameters

len	number of leds
brightness	brightness

Definition at line 109 of file ws2812b.c.

{
    uint32_t purple = URGB(brightness * 3 / 4, 0, brightness);
    set_all_leds(purple, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_red()

void set_all_red	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds to red.

Parameters

len	number of leds
brightness	brightness

Definition at line 85 of file ws2812b.c.

{
    uint32_t red = URGB(brightness, 0, 0);
    set_all_leds(red, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_turquoise()

void set_all_turquoise	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds turquoise.

Parameters

len	number of leds
brightness	brightness

Definition at line 139 of file ws2812b.c.

{
    uint32_t turquoise = URGB(brightness / 3, brightness * 2 / 3, brightness);
    set_all_leds(turquoise, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_white()

void set_all_white	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds to white.

Parameters

len	number of leds
brightness	brightness

Definition at line 103 of file ws2812b.c.

{
    uint32_t white = URGB(brightness, brightness, brightness);
    set_all_leds(white, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_all_yellow()

void set_all_yellow	(	uint32_t	len,
		uint8_t	brightness
	)

Set all leds yellow.

Parameters

len	number of leds
brightness	brightness

Definition at line 115 of file ws2812b.c.

{
    uint32_t yellow = URGB(brightness, brightness, 0);
    set_all_leds(yellow, len);
}

References set_all_leds(), and URGB.

Referenced by set_light_color().

◆ set_rainbow_spectrum()

void set_rainbow_spectrum ( uint32_t len )

Set all leds to rainbow spectrum.

Parameters

len	number of leds

Definition at line 151 of file ws2812b.c.

{
    for (uint32_t i = 0; i < len; ++i)
    {
        uint32_t color = hsv_to_rgb(i * 360 / len, 255, 255);
        put_pixel(color);
    }
}

References hsv_to_rgb(), and put_pixel().

◆ turn_off_all()

void turn_off_all ( uint32_t len )

Turn off all leds.

Parameters

len	number of leds

Definition at line 23 of file ws2812b.c.

{
    uint32_t off = URGB(0, 0, 0);
    set_all_leds(off, len);
}

References set_all_leds(), and URGB.

Referenced by cgi_led_brightness_handler(), cgi_led_handler(), run_loop(), and toggle_light_state().

Functions

Function Documentation

◆ apply_breathing_effect()

◆ apply_flashing_effect()

◆ apply_rainbow_cycle_effect()

◆ apply_rainbow_wheel_effect()

◆ get_blue()

◆ get_cyan()

◆ get_green()

◆ get_magenta()

◆ get_orange()

◆ get_pink()

◆ get_purple()

◆ get_red()

◆ get_turquoise()

◆ get_white()

◆ get_yellow()

◆ put_pixel()

◆ set_all_blue()

◆ set_all_cyan()

◆ set_all_green()

◆ set_all_leds()

◆ set_all_magenta()

◆ set_all_orange()

◆ set_all_pink()

◆ set_all_purple()

◆ set_all_red()

◆ set_all_turquoise()

◆ set_all_white()

◆ set_all_yellow()

◆ set_rainbow_spectrum()

◆ turn_off_all()