STM32 firmware for a remotely-controlled stepper motor demo with a mobile interface.
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#pragma once
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
// PB8 - WS2812B data line
#define COLORLED_GPIO GPIOB
#define COLORLED_PIN GPIO_Pin_12
#define RGB_RED rgb(255, 0, 0)
#define RGB_ORANGE rgb(255, 110, 0)
#define RGB_YELLOW rgb(255, 255, 0)
#define RGB_LIME rgb(160, 255, 0)
#define RGB_GREEN rgb( 0, 255, 0)
#define RGB_CYAN rgb( 0, 255, 120)
#define RGB_BLUE rgb( 0, 0, 255)
#define RGB_MAGENTA rgb(255, 0, 255)
#define RGB_WHITE rgb(255, 255, 255)
#define RGB_BLACK rgb( 0, 0, 0)
/**
* @brief Struct for easy manipulation of RGB colors.
*
* Set components in the xrgb.r (etc.) and you will get
* the hex in xrgb.num.
*/
typedef union {
/** Struct for access to individual color components */
struct __attribute__((packed)) {
uint8_t b;
uint8_t g;
uint8_t r;
};
/** RGB color as a single uint32_t */
uint32_t num;
} ws2812_rgb_t;
/* Exported macros -----------------------------------------------------------*/
/**
* @brief Compose an RGB color.
* @param r, g, b - components 0xFF
* @returns integer 0xRRGGBB
*/
#define rgb(r, g, b) (((0xFF & (r)) << 16) | ((0xFF & (g)) << 8) | (0xFF & (b)))
/* Get components */
#define rgb_r(rgb) (((rgb) >> 16) & 0xFF)
#define rgb_g(rgb) (((rgb) >> 8) & 0xFF)
#define rgb_b(rgb) ((rgb) & 0xFF)
/* Exported functions --------------------------------------------------------*/
/**
* @brief Turn OFF the rgb LED
*/
void colorled_off(void);
/**
* @brief Set color of a WS2812B
* @param rgb - color 0xRRGGBB
*/
void colorled_set(uint32_t rgb);
/**
* @brief Set color of multiple chained RGB leds
* @param rgbs - array of colors (0xRRGGBB)
* @param count - number of LEDs
*/
void colorled_set_many(uint32_t *rgbs, int count);