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硬件：

1)主板AB32VG1, 作為主控端。

2)SSD1306 OLED屏，用于顯示當(dāng)前空氣質(zhì)量相關(guān)的值以及當(dāng)前日期以及時間。

3)空氣質(zhì)量檢測傳感器(CO2、CH2O、TVOC三合一）,這款傳感器通過串口給主控傳輸相關(guān)數(shù)據(jù)。

軟件上創(chuàng)建了四個靜態(tài)線程，led燈線程、按鍵線程、OLED屏顯示線程以及串口獲取傳感器數(shù)據(jù)線程。

    // 創(chuàng)建LED靜態(tài)線程
    tmp_result1 = rt_thread_init(&led_thread,                 //線程控制塊
                               "led_blink",                 //線程名字，在shell里面可以看到
                               Led_ThreadEntry,            //線程入口函數(shù)
                               RT_NULL,                      //線程入口函數(shù)參數(shù)
                               &rt_led_thread_stack[0],     //線程棧起始地址
                               sizeof(rt_led_thread_stack), //線程棧大小
                               LED_Priority,                //線程的優(yōu)先級
                               LED_TimeSlices);             //線程時間片
    // 創(chuàng)建OLED靜態(tài)線程
    tmp_result2 = rt_thread_init(&oled_thread,                //線程控制塊
                               "oled_display",               //線程名字，在shell里面可以看到
                               OLED_ThreadEntry,             //線程入口函數(shù)
                               RT_NULL,                      //線程入口函數(shù)參數(shù)
                               &rt_oled_thread_stack[0],     //線程棧起始地址
                               sizeof(rt_oled_thread_stack), //線程棧大小
                               OLED_Priority,                //線程的優(yōu)先級
                               OLED_TimeSlices);             //線程時間片

    // 創(chuàng)建KEY靜態(tài)線程
    tmp_result3 = rt_thread_init(&key_thread,                //線程控制塊
                               "key_control",               //線程名字，在shell里面可以看到
                               Key_ThreadEntry,             //線程入口函數(shù)
                               RT_NULL,                      //線程入口函數(shù)參數(shù)
                               &rt_key_thread_stack[0],     //線程棧起始地址
                               sizeof(rt_key_thread_stack), //線程棧大小
                               KEY_Priority,                //線程的優(yōu)先級
                               KEY_TimeSlices);             //線程時間片

    tmp_result4 = rt_thread_init(&uart_thread,                //線程控制塊
                               "usart1_task",               //線程名字，在shell里面可以看到
                               usart1_task_entry,             //線程入口函數(shù)
                               RT_NULL,                      //線程入口函數(shù)參數(shù)
                               &rt_uart_thread_stack[0],     //線程棧起始地址
                               sizeof(rt_uart_thread_stack), //線程棧大小
                               10,                //線程的優(yōu)先級
                               10);             //線程時間片

演示效果如附件中圖片

OLED屏?xí)目諝赓|(zhì)量檢測傳感器中獲取的數(shù)據(jù)顯示在OLED屏上，方便用戶快速的了解到當(dāng)前所處環(huán)境的空氣質(zhì)量情況。