Help! Ethernet Shield Switching

I have a project, switching using ethernet shield connected to a router, the problem is my ethernet shield is not the common one, so it has a different library. I bought it from E-gizmo, the library was provided by them so I can’t see other examples on internet. Yes, it is functioning well on this code but I need to have a lot of switch, 6 switches to control 6 appliances, to be specific. I’m a newbie, so it is expected i can’t understand the libraries provided by e-gizmo.I tried hard on trying to code just to add switch, I know how to use html code on that program tho

This is my exact device:
http://www.e-gizmo.com/KIT/ethernet%20shield.html

This is the library:
https://drive.google.com/drive/folders/0BxdLxDCD6HidNHg2TVA4eXJ4Vnc

I also attached the library of etherShield.

I will really deeply appreciate if someone would help me on coding this because it takes me whole day but still I can’t even have a good progress. Thanks a lot buddy in advance

This is the code I used.

#include "etherShield.h"


// please modify the following two lines. mac and ip have to be unique
// in your local area network. You can not have the same numbers in
// two devices:
static uint8_t mymac[6] = {0x54,0x55,0x58,0x10,0x00,0x24}; 
static uint8_t myip[4] = {192,168,1,15};
static char baseurl[]="http://192.168.1.15/";
static uint16_t mywwwport =80; // listen port for tcp/www (max range 1-254)



#define BUFFER_SIZE 500
static uint8_t buf[BUFFER_SIZE+1];
#define STR_BUFFER_SIZE 22
static char strbuf[STR_BUFFER_SIZE+1];

EtherShield es=EtherShield();

// prepare the webpage by writing the data to the tcp send buffer
uint16_t print_webpage(uint8_t *buf, byte on_off);
int8_t analyse_cmd(char *str);

// LED cathode connects the Pin4, anode to 5V through 1K resistor
#define LED_PIN  4


void setup(){
  
   /*initialize enc28j60*/
	 es.ES_enc28j60Init(mymac);
   es.ES_enc28j60clkout(2); // change clkout from 6.25MHz to 12.5MHz
   delay(10);
        
	/* Magjack leds configuration, see enc28j60 datasheet, page 11 */
	// LEDA=greed LEDB=yellow
	//
	// 0x880 is PHLCON LEDB=on, LEDA=on
	// enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
	es.ES_enc28j60PhyWrite(PHLCON,0x880);
	delay(500);
	//
	// 0x990 is PHLCON LEDB=off, LEDA=off
	// enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
	es.ES_enc28j60PhyWrite(PHLCON,0x990);
	delay(500);
	//
	// 0x880 is PHLCON LEDB=on, LEDA=on
	// enc28j60PhyWrite(PHLCON,0b0000 1000 1000 00 00);
	es.ES_enc28j60PhyWrite(PHLCON,0x880);
	delay(500);
	//
	// 0x990 is PHLCON LEDB=off, LEDA=off
	// enc28j60PhyWrite(PHLCON,0b0000 1001 1001 00 00);
	es.ES_enc28j60PhyWrite(PHLCON,0x990);
	delay(500);
	//
  // 0x476 is PHLCON LEDA=links status, LEDB=receive/transmit
  // enc28j60PhyWrite(PHLCON,0b0000 0100 0111 01 10);
  es.ES_enc28j60PhyWrite(PHLCON,0x476);
	delay(100);
        
  //init the ethernet/ip layer:
  es.ES_init_ip_arp_udp_tcp(mymac,myip,80);
  
 	pinMode(LED_PIN, OUTPUT); 
 	digitalWrite(LED_PIN, LOW);  // switch on LED
}

void loop(){
  uint16_t plen, dat_p;
  int8_t cmd;
  byte on_off = 1;

  plen = es.ES_enc28j60PacketReceive(BUFFER_SIZE, buf);

	/*plen will ne unequal to zero if there is a valid packet (without crc error) */
  if(plen!=0){
	           
    // arp is broadcast if unknown but a host may also verify the mac address by sending it to a unicast address.
    if(es.ES_eth_type_is_arp_and_my_ip(buf,plen)){
      es.ES_make_arp_answer_from_request(buf);
      return;
    }

    // check if ip packets are for us:
    if(es.ES_eth_type_is_ip_and_my_ip(buf,plen)==0){
      return;
    }
    
    if(buf[IP_PROTO_P]==IP_PROTO_ICMP_V && buf[ICMP_TYPE_P]==ICMP_TYPE_ECHOREQUEST_V){
      es.ES_make_echo_reply_from_request(buf,plen);
      return;
    }
    
    // tcp port www start, compare only the lower byte
    if (buf[IP_PROTO_P]==IP_PROTO_TCP_V&&buf[TCP_DST_PORT_H_P]==0&&buf[TCP_DST_PORT_L_P]==mywwwport){
      if (buf[TCP_FLAGS_P] & TCP_FLAGS_SYN_V){
         es.ES_make_tcp_synack_from_syn(buf); // make_tcp_synack_from_syn does already send the syn,ack
         return;     
      }
      if (buf[TCP_FLAGS_P] & TCP_FLAGS_ACK_V){
        es.ES_init_len_info(buf); // init some data structures
        dat_p=es.ES_get_tcp_data_pointer();
        if (dat_p==0){ // we can possibly have no data, just ack:
          if (buf[TCP_FLAGS_P] & TCP_FLAGS_FIN_V){
            es.ES_make_tcp_ack_from_any(buf);
          }
          return;
        }
        if (strncmp("GET ",(char *)&(buf[dat_p]),4)!=0){
          	// head, post and other methods for possible status codes see:
            // http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html
            plen=es.ES_fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n<h1>200 OK</h1>"));
            goto SENDTCP;
        }
 	if (strncmp("/ ",(char *)&(buf[dat_p+4]),2)==0){
                plen=print_webpage(buf, on_off);
            goto SENDTCP;
         }
        cmd=analyse_cmd((char *)&(buf[dat_p+5]));
        
        if (cmd==2){
                on_off=1;
        	digitalWrite(LED_PIN, LOW);  // switch on LED
        }
        else if (cmd==3){
                on_off=0;
        	digitalWrite(LED_PIN, HIGH);  // switch off LED
        }
        plen=print_webpage(buf, on_off);
        	
        	   plen=print_webpage(buf, on_off);
SENDTCP:  es.ES_make_tcp_ack_from_any(buf); // send ack for http get
           es.ES_make_tcp_ack_with_data(buf,plen); // send data       
      }
    }
  }
        
}
// The returned value is stored in the global var strbuf
uint8_t find_key_val(char *str,char *key)
{
        uint8_t found=0;
        uint8_t i=0;
        char *kp;
        kp=key;
        while(*str &&  *str!=' ' && found==0){
                if (*str == *kp){
                        kp++;
                        if (*kp == '\0'){
                                str++;
                                kp=key;
                                if (*str == '='){
                                        found=1;
                                }
                        }
                }else{
                        kp=key;
                }
                str++;
        }
        if (found==1){
                // copy the value to a buffer and terminate it with '\0'
                while(*str &&  *str!=' ' && *str!='&' && i<STR_BUFFER_SIZE){
                        strbuf[i]=*str;
                        i++;
                        str++;
                }
                strbuf[i]='\0';
        }
        return(found);
}

int8_t analyse_cmd(char *str)
{
        int8_t r=-1;
     
        if (find_key_val(str,"cmd")){
                if (*strbuf < 0x3a && *strbuf > 0x2f){
                        // is a ASCII number, return it
                        r=(*strbuf-0x30);
                }
        }
        return r;
}


uint16_t print_webpage(uint8_t *buf, byte on_off)
{

       int i=0;
    
        
        uint16_t plen;
        
 
        
        plen=es.ES_fill_tcp_data_p(buf,0,PSTR("HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\n"));
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<center><p><h1>Welcome to Arduino Ethernet Shield V1.0  </h1></p> "));
         
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<hr>
<form METHOD=get action=\""));
        plen=es.ES_fill_tcp_data(buf,plen,baseurl);
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("\">"));
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<h2> REMOTE LED is  </h2> "));
 				plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<h1><font color=\"#00FF00\"> "));
         
        if(on_off)
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("ON"));
        else 
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("OFF"));
        
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("  </font></h1>
 ") );
        
        if(on_off){
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<input type=hidden name=cmd value=3>"));
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<input type=submit value=\"Switch off\"></form>"));
        }
        else {
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<input type=hidden name=cmd value=2>"));
        	plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("<input type=submit value=\"Switch on\"></form>"));
        }
        
        plen=es.ES_fill_tcp_data_p(buf,plen,PSTR("</center><hr> <p> V1.0 <a href=\"http://www.nuelectronics.com\">www.nuelectronics.com<a>"));
  
        return(plen);
}

etherShield (1).zip (37.1 KB)

The library is very old, using *.pde project format instead of the current *.ino format. Did you already try to make your device work with the Arduino Ethernet library?

I’d suggest that you extend the library, or build your own library on top of that library. Put into your extensions the code from the examples, dealing with lower levels of the TCP/IP protocol. Having done that successfully, you reached the Ethernet Guru grade.

If you don’t want to spend that much time, get a modern, Arduino compatible and (most probably) more powerful Ethernet module.

I never was digging so deep into the protocols, cannot help you with your project :frowning:

Thank you! I appreciate the thought of you wanting to help me. I also tried the examples on Ethernet examples but it really happened that the shield has different library. I'm really annoyed with that shield and also yes it is an old version(it sucks). I'll just buy nodemcu or legit version of ethernet shield if ever I really can't understand how to code with that shield. Thanks, Dude!