File content as of revision 1:4ffc39e81583:

#include "mbed.h"
#include "esp8266.h"
#include <cstdarg>
#include <cstring>
#include <stdint.h>







//DigitalOut myled(LED1);

//DigitalOut(PB_3);
//DIgitalOut(PB_12);

//DigitalOut(PA_12);
//DigitalOut(PA_11);
//DigitalOut(PB_3);
Serial ser2usb(PA_2, PA_3, 115200);
int state = 0;
void Open(int row, int col);



DigitalOut red[2]=
{
    PB_13,PB_12,
};

DigitalOut black[3]=
{
    PA_12,PA_11,PB_3,
};


/***************************************
The SetUp function initial all pins. 
****************************************/
void SetUp()
{
    for(int i=0; i<2; i++)
    {
        red[i].write(0);
    }
    
    for(int i=0; i<3; i++)
    {
        black[i].write(0);
    }
    
   
}

/**************************************/
int main()
{
   SetUp();
   wait(3);
   
    
    ser2usb.printf("starting\r\n");

    // 选定与 esp8266 相连接的串口，WiFi 名称和密码
    Esp8266 client(PA_9, PA_10, "iot_b827eb8fb527", "7c02b50b"); // 参数分别为 TX pin / RX pin / SSID / Password

    //声明所有的传感器，每行一个，每个由名字、单位两部分组成，最后一行必须为空指针作为结尾
    const char *sensors[][2] = {
        "opendrawer", "",
        NULL, NULL //最后一行以空指针作为结束标记
    };

    //声明所有的执行器，每行一个，每个由名字、参数类型两部分组成，最后一行必须为空指针作为结尾
    const char *actuators[][2] = {
        "do", "int",
        NULL, NULL //最后一行以空指针作为结束标记
    };
    ser2usb.printf("connecting...\r\n");

    //连接到服务器
    client.connect_mqtt_broker("192.168.12.1", "smart_drawer", sensors, actuators);

    ser2usb.printf("Initialization done.\r\n");
    char actuator_name[32], control_value[32];
    Timer t; // 定时器用于计量发送传感器数据的时间
    t.start();
    client.publish_value("do", "drawerinit");
    while (1)
    {
        //检查有没有收到新的执行器控制指令
        if (client.get_control_cmd(actuator_name, control_value))
        {
            ser2usb.printf("Received CMD %s %s\r\n", actuator_name, control_value);
            //判断哪个执行器收到命令
            state = atoi(control_value);
            switch (state)
            {
            case 1: // white to black
                 
                 Open(0,0);
                 wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;
            case 2: // white to black
                 
                 Open(0,1);
                wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;
             case 3: // white to black
                 
                 Open(0,2);
                wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;
             case 4: // white to black
                 
                 Open(1,0);
                wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;
              case 5: // white to black
                 
                 Open(1,2);
                wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;
              case 6: // white to black
                 
                 Open(1,2);
                wait(0.2);
                client.publish_value("do", "drawerfinish");
                break;          
            default:
                break;
            }
        }
    }
}



void Open(int row,int col)
{
        red[row].write(1);
        black[col].write(1);
        wait(0.2);
        SetUp();  
}