#include //ProtoThreads必須包含的頭文件

#include ? ?? ?? ?// 加載SPI

#include ? ???//加載網絡庫

#include ??// 加載UDP 庫UDP library from: [email]bjoern@cs.stanford.edu[/email] 12/30/2008

/***************************************UDP AND BOOT*****************************************************/

byte mac[] = {0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

IPAddress ip(192, 168, 1, 177); //設置本機IP

unsigned int localPort = 8888;? ?? ?// 監聽端口local port to listen on

// buffers for receiving and sending data

char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,

char??ReplyBuffer[] = "acknowledged";? ?? ? // a string to send back

// An EthernetUDP instance to let us send and receive packets over UDP

EthernetUDP Udp;

/********************************************************************************************/

static int counter1,counter2,state1=0,state2=0; //counter為定時計數器，state為狀態

static int protothread1(struct pt *pt) //線程1，

{

PT_BEGIN(pt);??//線程開始

while(1) //每個線程都不會死

{

PT_WAIT_UNTIL(pt, counter1==2); //如果時間滿了1秒，則繼續執行，否則記錄運行點，退出線程1

counter1=0; //計數器置零

/************************************************************************************/

int packetSize = Udp.parsePacket();

if(packetSize)

{

Serial.print("Received packet of size ");

Serial.println(packetSize); //包大小

// read the packet into packetBufffer

Udp.read(packetBuffer,UDP_TX_PACKET_MAX_SIZE);

Serial.println(packetBuffer); //輸出字符串 可以對輸出的字符串進行分析并使arduino 做出相應動作

// send a reply, to the IP address and port that sent us the packet we received

Udp.beginPacket(Udp.remoteIP(), Udp.remotePort());

Udp.write(ReplyBuffer);

Udp.endPacket();

}

/

}

PT_END(pt); //線程結束

}

static int protothread2(struct pt *pt) //線程2，

{

PT_BEGIN(pt); //線程開始

while(1) {? ? //每個線程都不會死

PT_WAIT_UNTIL(pt, counter2==2); //如果時間滿了5秒，則繼續執行，否則記錄運行點，退出線程2

counter2=0;??//計數清零

EthernetClient client;

/**************************************************************************************/

String data;

data+="";

data+="data="+analogRead(A1); // Use HTML encoding for comma's

data+="&submit=Submit"; // Submitting data

if (client.connect("www.iiexe.com",80)) {

Serial.println("connected");

client.println("POST /arduino/post.php HTTP/1.1");

client.println("Host: www.iiexe.com");

client.println("Content-Type: application/x-www-form-urlencoded");

client.println("Connection: close");

client.print("Content-Length: ");

client.println(data.length());

client.println();

client.print(data);

client.println();

//Prints your post request out for debugging

Serial.println("Host: www.iiexe.com");

}

if (client.connected()) {

Serial.println();

Serial.println("disconnecting.");

client.stop();

}

/***************************************************************************************/

}

PT_END(pt);??//線程結束

}

static struct pt pt1, pt2;

void setup()

{

/***********************************初始化*********************************************/

//設置 初始化Ethernet and UDP??start the Ethernet and UDP:

PT_INIT(&pt1);??//線程1初始化

PT_INIT(&pt2);??//線程2初始化

Ethernet.begin(mac,ip);

Udp.begin(localPort);

Serial.begin(9600);

/*********************************************************************************/

pinMode(12,OUTPUT);//設置引腳D12

pinMode(13,OUTPUT);//設置引腳D13

}

void loop () //這就是進行線程調度的地方

{

protothread1(&pt1);??//執行線程1

protothread2(&pt2);??//執行線程2

delay(1000);??//時間片，每片1秒，可根據具體應用設置大小

counter1++;

counter2++;

}

總結

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