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main.cpp
- Committer:
- zhangyx
- Date:
- 2018-03-19
- Revision:
- 8:d5e340a59c71
- Parent:
- 7:49a823b5a935
- Child:
- 9:238780dda8af
File content as of revision 8:d5e340a59c71:
/*----------------------------------------------------- File Name : main.cpp Purpose : For esp8266 mbed porting Creation Date : 22-06-2017 Last Modified : Created By : Jeasine Ma [jeasinema[at]gmail[dot]com] -----------------------------------------------------*/ #include <cstdarg> #include <cstring> #include "mbed.h" #include "esp8266.h" Serial ser2usb(PA_2, PA_3, 115200); DigitalIn ref(PA_12); DigitalOut LED(PC_13); int main(void) { 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_b827eb91bf24", "b827ebc4ea71");// 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] = { "light", "lx", "reflection"," ", 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] = { "led", "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", "alpha", sensors, actuators); ser2usb.printf("Initialization done.\r\n"); char actuator_name[32], control_value[32]; bool ref_last; float last_report=0; Timer t;// 定时器用于计量发送传感器数据的时间 t.start(); 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 if(strcmp(actuator_name, "led")==0){ LED = atoi(control_value); } } bool reflection = ref; if(reflection != ref_last){ //仅在传感器发生变化时汇报数据 ref_last = reflection; char val[4]; sprintf(val, "%d", (int)reflection); //汇报传感器数据,两个参数分别是传感器名字和值 client.publish_value("reflection", val); } if(t.read() - last_report > 1){ // 每1s发送汇报一次传感器数据 //汇报传感器数据,两个参数分别是传感器名字和值 //client.publish_value("light", "30 lx"); last_report = t.read(); } } }