RT-Thread-【24嵌入式设计大赛】智能家居RT-Thread问答社区

【24嵌入式设计大赛】智能家居

发布于 2024-09-16 20:32:32 浏览：420 订阅该版

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# rtthread_智能家居_智能窗帘

## 软件介绍
能够根据当前的关照进行智能自动的开关窗帘，并且支持一个oled显示当前光照强度占比，并且还支持按键去控制光照强度阈值进行调节。

## 硬件接线
### 1.  步进电机28BYJ48+ULN2003驱动板 4相 5线 5V12V步进电机 减速电机

![步进电机.png](https://oss-club.rt-thread.org/uploads/20240916/a30b00ca78cda3fa2682f9edbf323b6b.png.webp)
##### 接线说明：
| 步进电机 | pin     |
|---------|---------|
|   vcc   |  5V     |
|   GND   |  GND    |
|   IN1   |  P2_0   |
|   IN2   |  P1_22  |
|   IN3   |  P2_3   |
|   IN4   |  P2——2  |

#### 2.  光敏电阻传感器

![光敏电阻传感器.jpg](https://oss-club.rt-thread.org/uploads/20240916/c1ed32d357184c444c24c37395435e76.jpg)

##### 接线说明：
| 光敏传感器 | pin        |
|---------|---------|
|   vcc     |  3.3V      |
|   GND     |  GND       |
|   AO      |  ADC0_A0   |

#### 2.  OLED显示屏

![oled.jpg](https://oss-club.rt-thread.org/uploads/20240916/1c388c2229302a5295add4155eb15a4a.jpg)

##### 接线说明：
| OLED显示屏 | pin        |
|---------|---------|
|   vcc     |  3.3V      |
|   GND     |  GND       |
|   SCL     |  P4_1      |
|   SDA     |  P4_0      |

#### 配置教程
##### 1. 步进电机
配置引脚模式，在rtthread里面引脚被重新定义了，被定义成数字，官方提供一个函数GET_PIN，我们这里使用直接计算，计算方法是：引脚组号*32+引脚号

```c
//引脚定义
#define MOTOR_A					((2*32+0))
#define MOTOR_B					((1*32+22))
#define MOTOR_C					((2*32+3))
#define MOTOR_D					((2*32+2))
//周期定义
#define MOTOR_N					512
//初始化
void motor_init(void){
	rt_pin_mode(MOTOR_A, PIN_MODE_OUTPUT);
	rt_pin_mode(MOTOR_B, PIN_MODE_OUTPUT);
	rt_pin_mode(MOTOR_C, PIN_MODE_OUTPUT);
	rt_pin_mode(MOTOR_D, PIN_MODE_OUTPUT);
	
	rt_pin_write(MOTOR_A, 0);
	rt_pin_write(MOTOR_B, 0);
	rt_pin_write(MOTOR_C, 0);
	rt_pin_write(MOTOR_D, 0);
	
}
```

驱动代码：

```c
//电机正转
void motor_sort(void){
	
				rt_pin_write(MOTOR_A, 1);
				rt_pin_write(MOTOR_B, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_A, 0);
				rt_pin_write(MOTOR_B, 0);
				
				rt_pin_write(MOTOR_C, 1);
				rt_pin_write(MOTOR_B, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_C, 0);
				rt_pin_write(MOTOR_B, 0);
				
				rt_pin_write(MOTOR_C, 1);
				rt_pin_write(MOTOR_D, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_C, 0);
				rt_pin_write(MOTOR_D, 0);
				
				rt_pin_write(MOTOR_A, 1);
				rt_pin_write(MOTOR_D, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_A, 0);
				rt_pin_write(MOTOR_D, 0);
	
}
//电机转一周
void motor_sort_oneweak(void){
	
	int i = 0;
	for(i = 0; i< MOTOR_N ;i++){
		motor_sort();
	}
}
//电机反转
void motor_inver(void){
				rt_pin_write(MOTOR_A, 1);
				rt_pin_write(MOTOR_D, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_A, 0);
				rt_pin_write(MOTOR_D, 0);
	
				rt_pin_write(MOTOR_C, 1);
				rt_pin_write(MOTOR_D, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_C, 0);
				rt_pin_write(MOTOR_D, 0);
	
				rt_pin_write(MOTOR_C, 1);
				rt_pin_write(MOTOR_B, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_C, 0);
				rt_pin_write(MOTOR_B, 0);
	
				rt_pin_write(MOTOR_A, 1);
				rt_pin_write(MOTOR_B, 1);
				rt_thread_mdelay(2);
				rt_pin_write(MOTOR_A, 0);
				rt_pin_write(MOTOR_B, 0);
}
//电机反转一周
void motor_inver_oneweak(void){
	
	int i = 0;
	for(i = 0; i< MOTOR_N ;i++){
		motor_inver();
	}
}
```

### 2. 光敏电阻
这里面我们要用rtthread的图形化配置工具进行配置

```c
scons --pyconfig
```
打开rtthread已经配置好的硬件信息

![配置.png](https://oss-club.rt-thread.org/uploads/20240916/3c6fae0275e96d4f900afecb7dd0fa12.png)

ADC名字定义及寻找设备

```c
#define ADC_DEV_NAME "adc0"

adc_dev = (rt_adc_device_t)rt_device_find(ADC_DEV_NAME);
  if (adc_dev == RT_NULL) {
    rt_kprintf("adc_test failed! can't find %s device!\n", ADC_DEV_NAME);
    return;
  }
	//使能通道
  ret = rt_adc_enable(adc_dev, 0);
```
数值读取及其单位化

```c
value = rt_adc_read(adc_dev, 0);
		
precent = 100 - value / 655;
```

##### 3. OLED显示屏（直接献上大佬的链接）
[oled配置](https://club.rt-thread.org/ask/article/f667d03a76b90096.html "oled配置")

#### 使用说明

1. 进入程序界面然后使用adc_test进入程序
2. 使用按键设置阈值光照强度

#### 参考

1.  辛书伟：恩智浦FRDM-MCXN947开发实践指南——GPIO篇[GPIO配置](https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/tutorial/make-bsp/NXP-MCX/%E6%81%A9%E6%99%BA%E6%B5%A6FRDM-MCX974%E5%AE%9E%E8%B7%B5%E6%8C%87%E5%8D%97?id=_2-%e6%ad%a5%e9%aa%a4%e8%af%b4%e6%98%8e-1 "GPIO配置")
2.  刘协泉：恩智浦FRDM-MCXN947开发实践指南——ADC篇[ADC配置](https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/tutorial/make-bsp/NXP-MCX/%E6%81%A9%E6%99%BA%E6%B5%A6FRDM-MCX974%E5%AE%9E%E8%B7%B5%E6%8C%87%E5%8D%97?id=%e5%9b%9b%e3%80%81%e6%81%a9%e6%99%ba%e6%b5%a6frdm-mcxn947%e4%b8%8a%e7%9a%84adc%e5%ae%9e%e8%b7%b5%ef%bc%88%e5%88%98%e5%8d%8f%e6%b3%89%ef%bc%89 "ADC配置")
3.  rt_thread标准文档：[IIC用法](https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/programming-manual/device/i2c/i2c "IIC用法")
4.  oled配置[OLED配置](https://club.rt-thread.org/ask/article/f667d03a76b90096.html "OLED配置")

## B站演示视频：[演示视频](https://www.bilibili.com/video/BV1Jx4demEs5/?spm_id_from=333.999.list.card_archive.click "演示视频")
## gitee仓库：[gitee仓库](https://gitee.com/du-ankang/rtthread_design "gitee仓库")