Jass at 09:37, 4 December 2015

2015-12-04T09:37:09Z

Jass at 12:03, 30 November 2015

2015-11-30T12:03:53Z

Jass at 12:03, 30 November 2015

2015-11-30T12:03:24Z

Jass at 12:03, 30 November 2015

2015-11-30T12:03:05Z

Jass: Replaced content with "Kode eksempel: [https://codebender.cc/sketch:193173#webserver%20ethershield%20v11%20and%20dallas%20ds18b20.ino her (codebender.cc)] lib: [https://github.com/jonoxer/etherShi..."

2015-11-30T11:30:26Z

Replaced content with "Kode eksempel: [https://codebender.cc/sketch:193173#webserver%20ethershield%20v11%20and%20dallas%20ds18b20.ino her (codebender.cc)] lib: [https://github.com/jonoxer/etherShi..."

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Jass: Created page with " `// Ethersheid Example // 'Read out temperature fra dallas ds18b20 on a webpage' // Licence: LGPLv3 open source // dato: 29-11-2016 // Authour: Michael Pedersen, http://t..."`


2015-11-30T11:07:29Z
Created page with "<code> // Ethersheid Example  // 'Read out temperature fra dallas ds18b20 on a webpage'  // Licence: LGPLv3 open source // dato: 29-11-2016 // Authour: Michael Pedersen, http://t..."
New page
<code>

// Ethersheid Example



// 'Read out temperature fra dallas ds18b20 on a webpage'



// Licence: LGPLv3 open source

// dato: 29-11-2016

// Authour: Michael Pedersen, http://techmind.dk



#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]  = {172,16,44,200};

static char baseurl[]   = "http://172.16.44.200/";

static uint16_t mywwwport = 80; // listen port for tcp/www (max range 1-254)

// or on a different port:

//static uint16_t mywwwport = 88; // 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];



//dallas ds18b20 temperature sensor

#define TEMP_PIN 7

void getCurrentTemp( char *temperature);

char sensorData[10];

int i;

int wholex;



EtherShield es = EtherShield();



// prepare the webpage by writing the data to the tcp send buffer

uint16_t print_webpage (uint8_t *buf);

int8_t analyse_cmd (char *str);





void setup() {

  

  Serial.begin(9600);

  

  /*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, mywwwport);

}





void loop() {

  

  Serial.println(wholex); //open the seriel monitor to read out the temperature trough the serial port

  

  uint16_t plen, dat_p;

  int8_t cmd;



  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);

        goto SENDTCP;

      }

      cmd = analyse_cmd ((char *) & (buf[dat_p+5]));

      if (cmd == 1) {

        plen = print_webpage (buf);

      }

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)

{

  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 V1.1  </h1></p> "));

 plen = es.ES_fill_tcp_data_p (buf, plen, PSTR("  <br><font><h2> ") );

  plen = es.ES_fill_tcp_data_p (buf, plen, PSTR("<br> Temperature: "));

   plen = es.ES_fill_tcp_data_p (buf, plen, PSTR("<br>"));

   i=0;

      getCurrentTemp(sensorData); //get the current temperature

       while (sensorData[i]) {

                buf[TCP_CHECKSUM_L_P+3+plen]=sensorData[i++]; 

                plen++;

        }

  //plen = es.ES_fill_tcp_data_p (buf, plen, PSTR(sensorData));

 

  plen = es.ES_fill_tcp_data_p (buf, plen, PSTR("  <br></font></h2> ") );



  return (plen);

}



//dallas ds18b20 temperatur sensor function

void getCurrentTemp(char *temp)

{  

  int HighByte, LowByte, TReading, Tc_100, sign, whole, fract;



  OneWireReset(TEMP_PIN);

  OneWireOutByte(TEMP_PIN, 0xcc);

  OneWireOutByte(TEMP_PIN, 0x44); // perform temperature conversion, strong pullup for one sec



  OneWireReset(TEMP_PIN);

  OneWireOutByte(TEMP_PIN, 0xcc);

  OneWireOutByte(TEMP_PIN, 0xbe);



  LowByte = OneWireInByte(TEMP_PIN);

  HighByte = OneWireInByte(TEMP_PIN);

  TReading = (HighByte << 8) + LowByte;

  sign = TReading & 0x8000;  // test most sig bit

  if (sign) // negative

  {

    TReading = (TReading ^ 0xffff) + 1; // 2's comp

  }

  Tc_100 = (6 * TReading) + TReading / 4;    // multiply by (100 * 0.0625) or 6.25

wholex=whole;

  whole = Tc_100 / 100;  // separate off the whole and fractional portions

  fract = Tc_100 % 100;



	if(sign) temp[2]='-';

	else 		 temp[2]='+';

	

//**database field no 01

        temp[0] = 'x';

        temp[1] = '1';

//temperature        	

	temp[3]= (whole-(whole/100)*100)/10 +'0' ;

	temp[4]= whole-(whole/10)*10 +'0';

	

	temp[5]='.';

	temp[6]=fract/10 +'0';

	temp[7]=fract-(fract/10)*10 +'0';



}	



void OneWireReset(int Pin) // reset.  Should improve to act as a presence pulse

{

     digitalWrite(Pin, LOW);

     pinMode(Pin, OUTPUT); // bring low for 500 us

     delayMicroseconds(500);

     pinMode(Pin, INPUT);

     delayMicroseconds(500);

}



void OneWireOutByte(int Pin, byte d) // output byte d (least sig bit first).

{

   byte n;



   for(n=8; n!=0; n--)

   {

      if ((d & 0x01) == 1)  // test least sig bit

      {

         digitalWrite(Pin, LOW);

         pinMode(Pin, OUTPUT);

         delayMicroseconds(5);

         pinMode(Pin, INPUT);

         delayMicroseconds(60);

      }

      else

      {

         digitalWrite(Pin, LOW);

         pinMode(Pin, OUTPUT);

         delayMicroseconds(60);

         pinMode(Pin, INPUT);

      }



      d=d>>1; // now the next bit is in the least sig bit position.

   }

   

}



byte OneWireInByte(int Pin) // read byte, least sig byte first

{

    byte d, n, b;



    for (n=0; n<8; n++)

    {

        digitalWrite(Pin, LOW);

        pinMode(Pin, OUTPUT);

        delayMicroseconds(5);

        pinMode(Pin, INPUT);

        delayMicroseconds(5);

        b = digitalRead(Pin);

        delayMicroseconds(50);

        d = (d >> 1) | (b<<7); // shift d to right and insert b in most sig bit position

    }

    return(d);

}

</code>



[[Category:Elektronik]]

← Older revision		Revision as of 09:37, 4 December 2015
Line 6:		Line 6:

	virker ikke på højere version end v1.0.5!		virker ikke på højere version end v1.0.5!
		+
		+	[[Category:Elektronik]]

← Older revision		Revision as of 12:03, 30 November 2015
Line 5:		Line 5:
	Link til kort gennemgang[[file:Arduino_ethershield.pdf]]		Link til kort gennemgang[[file:Arduino_ethershield.pdf]]

−	virker ikke på højere version end v1.0.5	+	virker ikke på højere version end v1.0.5!
−
−	~~husk port...~~

@@ Line 3: / Line 3: @@
 lib: [https://github.com/jonoxer/etherShield github]
-Link til kort gennemgang[[Arduino_ethershield.pdf]]
+Link til kort gennemgang[[file:Arduino_ethershield.pdf]]
 virker ikke på højere version end v1.0.5
 husk port...

← Older revision		Revision as of 12:03, 30 November 2015
Line 2:		Line 2:

	lib: [https://github.com/jonoxer/etherShield github]		lib: [https://github.com/jonoxer/etherShield github]
		+
		+	Link til kort gennemgang[[Arduino_ethershield.pdf]]
		+
		+	virker ikke på højere version end v1.0.5

	husk port...		husk port...

Ethershield v1.1 - Revision history

Jass at 09:37, 4 December 2015

Jass at 12:03, 30 November 2015

Jass at 12:03, 30 November 2015

Jass at 12:03, 30 November 2015

Jass: Replaced content with "Kode eksempel: [https://codebender.cc/sketch:193173#webserver%20ethershield%20v11%20and%20dallas%20ds18b20.ino her (codebender.cc)] lib: [https://github.com/jonoxer/etherShi..."

Jass: Created page with " // Ethersheid Example // 'Read out temperature fra dallas ds18b20 on a webpage' // Licence: LGPLv3 open source // dato: 29-11-2016 // Authour: Michael Pedersen, http://t..."

Jass: Created page with " `// Ethersheid Example // 'Read out temperature fra dallas ds18b20 on a webpage' // Licence: LGPLv3 open source // dato: 29-11-2016 // Authour: Michael Pedersen, http://t..."`