使用WiFi shield cc3000从Arduino请求本地Web应用程序

时间:2017-02-28 10:35:48

标签: c# asp.net arduino iot

我已经尝试了这么多天,但我的代码无效。我想要的是使用WiFi cc3000从Arduino Uno发送数据到我的Web应用程序。我已成功连接到WiFi,但无法连接到部署在IIS服务器上的网络服务器。您可以在我的代码中为我提供一个基本链接或解决问题吗?

#include <Adafruit_CC3000.h>
#include <ccspi.h>
#include <SPI.h>
#include <string.h>
#include "utility/debug.h"


#define WLAN_SSID       "xxxx"           
#define WLAN_PASS       "xxxxxxx"
#define WLAN_SECURITY   WLAN_SEC_WPA2

#define IDLE_TIMEOUT_MS  3000      // Amount of time to wait (in milliseconds) with no data 
                                   // received before closing the connection.  If you know the server
                                   // you're accessing is quick to respond, you can reduce this value.

// What page to grab!
#define WEBSITE      "http://www.sohail.com/ArduinoTCPCommunication/"
#define WEBPAGE      "default.aspx"




uint32_t ip;


void setup(void)
{
  Serial.begin(9600);
  Serial.println(F("Hello, CC3000!\n")); 

  Serial.print("Free RAM: "); Serial.println(getFreeRam(), DEC);

  /* Initialise the module */
  Serial.println(F("\nInitializing..."));
  if (!cc3000.begin())
  {
    Serial.println(F("Couldn't begin()! Check your wiring?"));
    while(1);
  }

  // Optional SSID scan
  // listSSIDResults();

  Serial.print(F("\nAttempting to connect to ")); Serial.println(WLAN_SSID);
  if (!cc3000.connectToAP(WLAN_SSID, WLAN_PASS, WLAN_SECURITY)) {
    Serial.println(F("Failed!"));
    while(1);
  }

  Serial.println(F("Connected!"));

  /* Wait for DHCP to complete */
  Serial.println(F("Request DHCP"));
  while (!cc3000.checkDHCP())
  {
    delay(100); // ToDo: Insert a DHCP timeout!
  }  

  /* Display the IP address DNS, Gateway, etc. */  
  while (! displayConnectionDetails()) {
    delay(1000);
  }

ip=0;
        Serial.println("IP to Connect");
             cc3000.printIPdotsRev(ip);
//   Try looking up the website's IP address
  Serial.print(WEBSITE); Serial.print(F(" -> "));
  while (ip == 0) {
    if (! cc3000.getHostByName(WEBSITE, &ip)) {
      Serial.println(F("Couldn't resolve!"));
    }
    delay(500);
  }

  //cc3000.printIPdotsRev(ip);

  serial.print(F("\n\rPinging ")); cc3000.printIPdotsRev(ip); Serial.print("...");  
  replies = cc3000.ping(ip, 5);
  Serial.print(replies); Serial.println(F(" replies"));
  */  


  if (www.connected()) {
          Serial.println(F("connected"));
    www.fastrprint(F("GET "));
    www.fastrprint(WEBPAGE);
    www.fastrprint(F(" HTTP/1.1\r\n"));
    www.fastrprint(F("Host: ")); www.fastrprint(WEBSITE); www.fastrprint(F("\r\n"));
    www.fastrprint(F("\r\n"));
    www.println();
  } else {
    Serial.println(F("Connection failed"));    
    return;
  }



  /* Read data until either the connection is closed, or the idle timeout is reached. */ 
  unsigned long lastRead = millis();
  while (www.connected() && (millis() - lastRead < IDLE_TIMEOUT_MS)) {
    while (www.available()) {
      char c = www.read();
      Serial.print(c);
      lastRead = millis();
    }
  }
  www.close();


  /* the next time your try to connect ... */
  Serial.println(F("\n\nDisconnecting"));
  cc3000.disconnect();

}

void loop(void)
{
 delay(1000);
}



bool displayConnectionDetails(void)
{
  uint32_t ipAddress, netmask, gateway, dhcpserv, dnsserv;

  if(!cc3000.getIPAddress(&ipAddress, &netmask, &gateway, &dhcpserv, &dnsserv))
  {
    Serial.println(F("Unable to retrieve the IP Address!\r\n"));
    return false;
  }
  else
  {
    Serial.print(F("\nIP Addr: ")); cc3000.printIPdotsRev(ipAddress);
    Serial.print(F("\nNetmask: ")); cc3000.printIPdotsRev(netmask);
    Serial.print(F("\nGateway: ")); cc3000.printIPdotsRev(gateway);
    Serial.print(F("\nDHCPsrv: ")); cc3000.printIPdotsRev(dhcpserv);
    Serial.print(F("\nDNSserv: ")); cc3000.printIPdotsRev(dnsserv);
    Serial.println();
    return true;
  }
}

以下是发送到本地服务器的数据的输出,但我找不到本地IP: Screenshot

0 个答案:

没有答案