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[RT-Thread x 大学生夏令营] 智能花盆

发布于 2023-07-25 22:13:36 浏览：769 订阅该版

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## 功能简介：
该项目是基于STM32F407-RT-SPARK开发板的智能花盆。通过温湿度传感器和光照传感器，它能够监测花盆土壤当前的温湿度和附近的光照强度，并将这三项数据实时显示在LCD屏上。它还能够监测花盆是否倾倒，监测到花盆倾倒后，蜂鸣器会发出警报，直到按下按键，警报停止。同时，它还配备了rw007模块，能将这些数据实时上传到onenet平台。

## 硬件框架：
使用到的模块包括：LCD屏、温湿度传感器、光照传感器、蜂鸣器、物理按键
![图一  硬件实物图与使用到的模块](https://oss-club.rt-thread.org/uploads/20230725/fff6d71c8187fe1e3fa220acb28c907b.png.webp)
图一  硬件实物图与使用到的模块

![图二  硬件框架图](https://oss-club.rt-thread.org/uploads/20230725/6cee8764535404b0081ab1f398f54d88.jpg.webp)
图二  硬件框架图

## 软件框架：

![图三  软件框架图](https://oss-club.rt-thread.org/uploads/20230725/4a8ec74df9c7bb044d7846cbb35a7d08.jpg.webp)
图三  软件框架图

## 软件模块说明及部分代码：
### 1.六轴传感器线程：
六轴传感器模块测量花盆的偏航角、横滚角和俯仰角，并将测量数据发送给CPU进行判断，若花盆倾倒，记录异常数据。

```c
					 icm20608_device_t devvv = RT_NULL;
					 rt_err_t result;
                     devvv = icm20608_init(i2c_bus_namee);

if (devvv == RT_NULL)
                     {
                     LOG_E("The sensor initializes failure");
                     return 0;
                     }
                     else
                     {
                     LOG_D("The sensor initializes success");
                     }
                     /* 对 icm20608 进 行 零 值 校 准： 采 样 10 次， 求 取 平 均 值 作 为 零 值 */
                     result = icm20608_calib_level(devvv, 10);
                     if (result == RT_EOK)
                     {
                     LOG_D("The sensor calibrates success");
                     LOG_D("accel_offset: X%6d Y%6d Z%6d", devvv->accel_offset.x, devvv->accel_offset.y, devvv->accel_offset.z);
                     }

else
                     {
                     LOG_E("The sensor calibrates failure");
                     icm20608_deinit(devvv);
                     return 0;
                     }
					 rt_int16_t accel_x, accel_y, accel_z;
                     /* 读 取 三 轴 加 速 度 */
                     result = icm20608_get_accel(devvv, &accel_x, &accel_y, &accel_z);
                     if (result == RT_EOK)
                     {
                     LOG_D("current accelerometer: accel_x%6d, accel_y%6d, accel_z%6d",
                     accel_x, accel_y, accel_z);
                     }
                     else
                     {
                     LOG_E("The sensor does not work");
                     break;
                     }
```

### 2.LCD显示线程：
该线程初始化后会持续读取温度、湿度和光照数据，并将其实时显示在LCD显示屏上。

lcd_clear(WHITE);
        lcd_set_color(WHITE, RED);
        lcd_show_string(10, 0, 16, "Hello!");

lcd_set_color(WHITE, BLACK);
        lcd_show_string(10, 26, 32, "Temperature:");
        lcd_show_string(10, 90, 32, "Humidity:");
        lcd_show_string(10, 160, 32, "Light:");

lcd_set_color(WHITE, BLUE);
        lcd_show_num(30, 26+32, temperature, 2, 32);
        lcd_show_string(65,26+32,32,"C");
        lcd_show_num(30, 90+32, humidity, 2, 32);
        lcd_show_string(65, 90+32, 32, "%");
        lcd_show_num(30, 160+32, brightness, 2, 32);
        lcd_show_string(80, 160+32, 32, "lux");
3.光强传感器线程：
光强传感器模块将记录光强数据，用于LCD显示和云端显示。

```c
                    brightness = ap3216c_read_ambient_light(devv);
                     LOG_D("current brightness: %d.%d(lux).", (int)brightness, ((int)(10 * brightness) % 10));
```

### 4.rw007线程（Onenet）：
读取rw007模块传来的温湿度数据、光照数据并存储到云端以图表方式进行显示；若倾倒角度数据异常，会在云端进行报警。

```
	int onenet_publish_digit(int argc, char **argv)
	{
    if (argc != 3)
    {
        LOG_E("onenet_publish [datastream_id]  [value]  - mqtt pulish digit data to OneNET.");
        return -1;
    }

if (onenet_mqtt_upload_digit(argv[1], atoi(argv[2])) < 0)
    {
        LOG_E("upload digit data has an error!\n");
    }

return 0;
	}
	int onenet_publish_string(int argc, char **argv)
	{
    if (argc != 3)
    {
        LOG_E("onenet_publish [datastream_id]  [string]  - mqtt pulish string data to OneNET.");
        return -1;
    }

if (onenet_mqtt_upload_string(argv[1], argv[2]) < 0)
    {
        LOG_E("upload string has an error!\n");
    }
    return 0;
	}
	/* onenet mqtt command response callback function */
	static void onenet_cmd_rsp_cb(uint8_t *recv_data, size_t recv_size, uint8_t **resp_data, size_t *resp_size)
	{
    char res_buf[] = { "cmd is received!\n" };

LOG_D("recv data is %.*s\n", recv_size, recv_data);

/* user have to malloc memory for response data */
    *resp_data = (uint8_t *) ONENET_MALLOC(strlen(res_buf));

strncpy((char *)*resp_data, res_buf, strlen(res_buf));

*resp_size = strlen(res_buf);
	}
	/* set the onenet mqtt command response callback function */
	int onenet_set_cmd_rsp(int argc, char **argv)
	{  onenet_set_cmd_rsp_cb(onenet_cmd_rsp_cb);
    return 0;
	}
	MSH_CMD_EXPORT(onenet_set_cmd_rsp, set cmd response function);
	#endif /* FINSH_USING_MSH */
```

### 5.温湿度线程：
温湿度传感器模块测量土壤的温湿度，并记录测量数据。
```
	temperature=(int)temperature+(int)(temperature*10)%10;
     humidity=(int)humidity+(int)(humidity*10)%10;
     brightness=(int)brightness+(int)(brightness*10)%10;
     rt_thread_mdelay(100);
     onenet_mqtt_upload_digit("temperature", temperature);
     rt_thread_mdelay(100);
     onenet_mqtt_upload_digit("humidity", humidity);
     rt_thread_mdelay(100);
     onenet_mqtt_upload_digit("brightness", brightness);
```
### 6.蜂鸣器线程：
读取六轴传感器数据，并对花盆的倾倒状态进行判断。若花盆倾倒，蜂鸣器报警，可通过开发板上的按键关闭蜂鸣器。
```c
             /* 设置按键引脚为输入模式 */
                rt_pin_mode(PIN_KEY1, PIN_MODE_INPUT_PULLUP);
                rt_pin_mode(PIN_WK_UP, PIN_MODE_INPUT_PULLUP);

/* 设置蜂鸣器引脚为输出模式 */
                rt_pin_mode(PIN_BEEP, PIN_MODE_OUTPUT);

/* 设置按键中断模式与中断回调函数 */
                rt_pin_attach_irq(PIN_KEY1, PIN_IRQ_MODE_FALLING, irq_callback, (void *) PIN_KEY1);
                rt_pin_attach_irq(PIN_WK_UP, PIN_IRQ_MODE_FALLING, irq_callback, (void *) PIN_WK_UP);

/* 使能中断 */
                rt_pin_irq_enable(PIN_KEY1, PIN_IRQ_ENABLE);
                rt_pin_irq_enable(PIN_WK_UP, PIN_IRQ_ENABLE);
	int topple;
	int X,Y,Z;
	X=devvv->accel_offset.x;
	Y=devvv->accel_offset.y;
	Z=devvv->accel_offset.z;
	if(abs(Y)<=10000){
	   topple=0;
	   rt_pin_write(PIN_BEEP,PIN_LOW);
       LOG_D("KEY1 interrupt. beep off.");
       }
	else{
       topple=1;
       rt_pin_write(PIN_BEEP,PIN_HIGH);
       LOG_D("WK_UP interrupt. beep on.");
       break;
       }
```

### Onenet页面展示

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230725/8a9979553dcc173d13150ed9901e2577.png.webp)

![screenshot_image.png](https://oss-club.rt-thread.org/uploads/20230725/0899325996e143bff2217dcefaa32c86.png)

## 演示视频网站：
https://www.bilibili.com/video/BV1NN411v7Jv