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需要外接一塊有全彩LED燈陣組成的燈板，

1.目前開發(fā)完成使用串口控制燈光變化的功能，后期添加手機(jī)端的功能

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-12-13     Administrator       the first version
 */
#include <rtthread.h>
#include "board.h"

#define THREAD_PRIORITY         7
#define THREAD_STACK_SIZE       512
#define THREAD_TIMESLICE        3

#define PWM_DEV_NAME_R        "t5pwm"  /* PWM設(shè)備名稱 */
#define PWM_DEV_CHANNEL_R     1       /* PWM通道 */

#define PWM_DEV_NAME_G        "lpwm0"  /* PWM設(shè)備名稱 */
#define PWM_DEV_CHANNEL_G     1       /* PWM通道 */

#define PWM_DEV_NAME_B        "lpwm1"  /* PWM設(shè)備名稱 */
#define PWM_DEV_CHANNEL_B     3       /* PWM通道 */

struct rt_device_pwm *pwm_dev_r;      /* PWM設(shè)備句柄 */
struct rt_device_pwm *pwm_dev_g;      /* PWM設(shè)備句柄 */
struct rt_device_pwm *pwm_dev_b;      /* PWM設(shè)備句柄 */

static rt_thread_t pwm_led_tid = RT_NULL;
rt_mq_t pwm_led_mq_handler = RT_NULL;
/* 線程 pwm_led_thread_entry 的入口函數(shù) */
/**
  * @brief  pwm_led_thread_entry
  * @param  parameter
  * @retval None
  */
static void pwm_led_thread_entry(void *parameter)
{
    rt_uint32_t period, pulse_r,pulse_g,pulse_b, dir_r,dir_g,dir_b;

    period = 655360;    /* 周期為0.5ms，單位為納秒ns */
    pulse_r = 0;          /* PWM脈沖寬度值，單位為納秒ns */
    pulse_g = 0;
    pulse_b = 0;
    pwm_led_t pwm_mq;
    /* 查找設(shè)備 */
    pwm_dev_r = (struct rt_device_pwm *)rt_device_find(PWM_DEV_NAME_R);
    if (pwm_dev_r == RT_NULL)
    {
        rt_kprintf("pwm led r run failed! can't find %s device!\n", PWM_DEV_NAME_G);
    }
    pwm_dev_g = (struct rt_device_pwm *)rt_device_find(PWM_DEV_NAME_G);
    if (pwm_dev_g == RT_NULL)
    {
        rt_kprintf("pwm led g run failed! can't find %s device!\n", PWM_DEV_NAME_G);
    }
    pwm_dev_b = (struct rt_device_pwm *)rt_device_find(PWM_DEV_NAME_B);
    if (pwm_dev_b == RT_NULL)
    {
        rt_kprintf("pwm led b run failed! can't find %s device!\n", PWM_DEV_NAME_B);
    }
    /* 設(shè)置PWM周期和脈沖寬度默認(rèn)值 */
    rt_pwm_set(pwm_dev_r, PWM_DEV_CHANNEL_R, period, pulse_r);
    rt_pwm_set(pwm_dev_g, PWM_DEV_CHANNEL_G, period, pulse_g);
    rt_pwm_set(pwm_dev_b, PWM_DEV_CHANNEL_B, period, pulse_b);

    /* 使能設(shè)備 */
    rt_pwm_enable(pwm_dev_r, PWM_DEV_CHANNEL_R);
    rt_pwm_enable(pwm_dev_g, PWM_DEV_CHANNEL_G);
    rt_pwm_enable(pwm_dev_b, PWM_DEV_CHANNEL_B);

    while (1)
    {
      if(rt_mq_recv(pwm_led_mq_handler,&pwm_mq,sizeof(pwm_led_t),RT_WAITING_FOREVER) == RT_EOK)
      {
          rt_pwm_set(pwm_dev_r, PWM_DEV_CHANNEL_R, period, pwm_mq.pulse_r);
          rt_pwm_set(pwm_dev_g, PWM_DEV_CHANNEL_G, period, pwm_mq.pulse_g);
          rt_pwm_set(pwm_dev_b, PWM_DEV_CHANNEL_B, period, pwm_mq.pulse_b);
          rt_kprintf("pulse_r:%d pulse_g:%d pulse_b:%d\n", pwm_mq.pulse_r,pwm_mq.pulse_g,pwm_mq.pulse_b);
          rt_thread_mdelay(10);
      }
    }
}

/* 線程初始化*/
int thread_init(void)
{
    /* 創(chuàng)建線程，名稱是 pwm_led_thread，入口是 pwm_led_thread*/
    pwm_led_tid = rt_thread_create("pwm_led_thread",
                                   pwm_led_thread_entry,
                                   RT_NULL,
                                   THREAD_STACK_SIZE,
                                   THREAD_PRIORITY,
                                   THREAD_TIMESLICE);
    pwm_led_mq_handler = rt_mq_create("pwm_led_messagequeue",
                               sizeof(pwm_led_t),
                               6,
                               RT_IPC_FLAG_FIFO);
    /* 如果獲得線程控制塊，啟動(dòng)這個(gè)線程 */
    if (pwm_led_tid != RT_NULL)
        rt_thread_startup(pwm_led_tid);

    return 0;
}

/* 導(dǎo)出到 msh 命令列表中 */
INIT_APP_EXPORT(thread_init);

/*
 * Copyright (c) 2006-2021, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2021-12-13     Administrator       the first version
 */
#include <rtthread.h>
#include "board.h"
#include <stdlib.h>
#define THREAD_PRIORITY         10
#define THREAD_STACK_SIZE       512
#define THREAD_TIMESLICE        5

extern rt_mq_t pwm_led_mq_handler;

static void cmd_led(int argc, char **argv)
{
    pwm_led_t pwm_mq;
    if(argc != 4)
    {
        rt_kprintf("please input'pulse_rgb <pulse_r & pulse_g & pulse_b>'!\n");
    }else{
        pwm_mq.pulse_r = strtoul(argv[1],0, 10);
        pwm_mq.pulse_g = strtoul(argv[2],0, 10);
        pwm_mq.pulse_b = strtoul(argv[3],0, 10);
        rt_mq_send(pwm_led_mq_handler, &pwm_mq, sizeof(pwm_led_t));
    }
}

//FINSH_FUNCTION_EXPORT(uart_cmd_led, led cmd);
MSH_CMD_EXPORT( cmd_led, cmd sample:pulse_rgb <pulse_r & pulse_g & pulse_b> );