Send data to webserver from Arduino using Ethercad lib - php

Question

i'm trying to send multiple data to a webserver using Ethercard library but for any reason is is only sending one data at a time.
Here is the the code I'm using:
#include <enc28j60.h>
#include <EtherCard.h>
#include <net.h>
#define HTTP_HEADER_OFFSET 163
#define MAX_STRINGS 100
#define MAX_STRING_LENGTH 8
/* Setup for Ethernet Library */
static byte mymac[] = { 0x74, 0x69, 0x69, 0x2D, 0x30, 0x31 };
const char website[] PROGMEM = "www.arksecurity.net16.net";
const char device[] = "0004";
char test[MAX_STRINGS][MAX_STRING_LENGTH+1];
unsigned long timer;
unsigned long tempo = 5000;
String register[20];
unsigned int sentOK = 0;
char* localID[MAX_STRINGS];
int countRegister = 2;
//int countRegister = 1;
int countID;
byte Ethernet::buffer[700];
void setup()
{
Serial.begin(57600);
register[0] = "empty";
if (!ether.begin(sizeof Ethernet::buffer, mymac, 53))
{
Serial.println("Failed to access Ethernet controller");
while(1);
}
else
Serial.println("Ethernet controller initialized");
Serial.println();
if (!ether.dhcpSetup())
{
Serial.println("Failed to get configuration from DHCP");
while(1);
}
else
Serial.println("DHCP configuration done");
if (!ether.dnsLookup(website))
{
Serial.println("DNS failed");
while(1);
}
else
Serial.println("DNS resolution done");
ether.printIp("SRV IP:\t", ether.hisip);
Serial.println();
timer = millis() - tempo;
}
void loop()
{
char tempRegister[80];
ether.packetLoop(ether.packetReceive());
if (millis() - timer > tempo)
{
timer += tempo;
ether.browseUrl(PSTR("/DevicesQuery.php?device="), device , website, response_callback);
if(test[0][0] != 0)
{
int missing = 0;
Serial.println("Data Received");
for(int i = 0; i < countID ; i++)
{
for(int x = 0; x < 8 ; x++)
{
if (test[i][x] == '\0')
{
missing = 1;
}
}
}
if(missing)
{
Serial.println("Data Missing");
tempo = 5000;
}
else
{
for(int g; g < countID ; g++)
{
register[g] = String(test[g]);
}
tempo = 40000;
}
}
else{
Serial.println("Waiting for server response...");
tempo = 5000;
}
//register[0] = "?ID=1234";
//register[1] = "?ID=5678";
if(register[0] != "empty")
{
for(int i = 0; i < countRegister ; i++)
{
register[i].toCharArray(tempRegister, 80);
//delay(5000);
//Serial.println(tempRegister);
ether.browseUrl(PSTR("/log.php"), tempRegister , website, browser_callback);
//while(sentOK == 0);
//sentOK = 0;
}
countRegister = 0;
register[0] = "empty";
}
}
}
static void response_callback (byte status, word off, word len) {
for(int i=0;i<MAX_STRINGS;i++)
for(int j=0;j<=MAX_STRING_LENGTH;j++)
test[i][j] = 0;
int i_string = 0;
int i_char = 0;
int i_ethBuff = off + HTTP_HEADER_OFFSET;
char carat;
countID = 0;
for (i_ethBuff = off + HTTP_HEADER_OFFSET; (carat = (char)Ethernet::buffer[i_ethBuff]) != 0; i_ethBuff++)
{
if (carat == '\n')
{ // New line char = new string
if (i_string < MAX_STRINGS - 1){
i_string++;
i_char = 0;
}
else
break; // Limite de memória do Arduino
}
else
{
if (i_char < MAX_STRING_LENGTH)
{
test[i_string][i_char] = carat;
i_char++;
} // otherwise discard the char (max length of string reached)
}
}
}
static void browser_callback (byte status, word off, word len)
{
Serial.println("Data sent");
//sentOK = 1;
}
countRegister is a variable and when it equals 1, it works great but, if he equals 2,for example, he only sends the second data to the server and ignore the first one. Anyone knows why is happening?
PS.:As for right now, I'm forcing register[0],register[1] values as you can see in the code above,but the idea is that later this values come from an outsource.

Answer 1

The short of it is that browseurl works asynchronously. Have a look at
http://forum.jeelabs.net/node/1477.html