首页 › Arduino › enc28j60有访问局域网IP的办法吗

lkmdcw 发表于 2016-5-5 20:46:18

enc28j60有访问局域网IP的办法吗

enc28j60我现代码访问域名外网是正常，但改为局域网IP,就不行，有解决办法吗

lkmdcw 发表于 2016-5-5 20:47:28

#include <EtherCard.h>
#include <OneWire.h>
#include <DallasTemperature.h>

#define SEND_INTERVAL30000
#define TIMEOUT      5000
#define ONE_WIRE_BUS   2
#define STATUS_IDLE    0
#define STATUS_SENT    1

static byte mymac[] = {0xDD,0xDD,0xDD,0x00,0x00,0x01};
byte Ethernet::buffer;

char website[] PROGMEM = "192.168.1.18";
char password[] PROGMEM = "password";

OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

unsigned long previousMillis = 0;
static byte session_id;
byte actual_status;

void setup () {

Serial.begin(57600);
Serial.println("WebTemperature demo");
Serial.println();

if (!ether.begin(sizeof Ethernet::buffer, mymac, 10)) {
    Serial.println( "Failed to access Ethernet controller");
    while(1);
} else Serial.println("Ethernet controller initialized");

if (!ether.dhcpSetup()) {
    Serial.println("Failed to get configuration from DHCP");
    while(1);
} else Serial.println("DHCP configuration done");

if (!ether.dnsLookup(website)) {
    Serial.print("Unable to resolve Website IP");
    while(1);
} else Serial.println("Website IP resolved");

Serial.println();
ether.printIp("IP Address:\t", ether.myip);
ether.printIp("Netmask:\t", ether.netmask);
ether.printIp("Gateway:\t", ether.gwip);
ether.printIp("Website IP:\t", ether.hisip);
Serial.println();
}

void loop() {

ether.packetLoop(ether.packetReceive());
unsigned long currentMillis = millis();

switch(actual_status) {
    case STATUS_IDLE:
      if(currentMillis - previousMillis > SEND_INTERVAL) {
      previousMillis = currentMillis;
      sendTemperature();      
      }
      break;
    case STATUS_SENT:
      if(currentMillis - previousMillis > TIMEOUT) {
      Serial.println("No response");
      previousMillis = currentMillis;
      actual_status = STATUS_IDLE;
      }
      checkResponse();
}
}   

void sendTemperature() {

sensors.requestTemperatures();
float float_temp = sensors.getTempCByIndex(0);

char string_temp;
dtostrf(float_temp, 4, 2, string_temp);

Stash stash;
byte sd = stash.create();
stash.print(string_temp);
stash.save();

Stash::prepare(PSTR("GET /demo/saveTemp.php?temp=$H&pwd=$F HTTP/1.0" "\r\n"
    "Host: $F" "\r\n" "\r\n"),
    sd, password, website);
session_id = ether.tcpSend();
Serial.print("Temperature ");
Serial.print(string_temp);
Serial.print(" sent to website... ");
actual_status = STATUS_SENT;
}

void checkResponse() {

const char* reply = ether.tcpReply(session_id);
if(reply > 0) {
    if(strstr(reply, "KO - ") != 0) Serial.println(strstr(reply, "KO - "));
    else Serial.println("OK");
    actual_status = STATUS_IDLE;
}
}

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