Til at styre varmen hjemmefra (inden vi kører ud til vognen) har jeg sakset og redigeret nedenstående.
Spørgsmålet er hvordan jeg finder adressen på min føler, eller får skidtet til at fungere uden at kende adressen.
Føleren er selvfølgelig monteret i vognen, så den er ikke lige til at pille ud....
/*
* Halfluck Temperature Controller Webserver
* An open-source Temperature Controller for Arduino.
* v1.4 23/7/2012
* Hosted at http://www.halfluck.com/source/webserver/TempControllerWebServer.ino
* Described in http://www.halfluck.com/source/webserver/TempControllerWebServer.ino
*
* TempControllerWebServer.ino
*
* (cc) by Rob Hart
*
* http://www.halfluck.com
* http://creativecommons.org/license/cc-gpl
*targettemp
* Compiled & Tested in Arduino 1.0.1
* using OneWire Library v2.1 http://www.arduino.cc/playground/Learning/OneWire
* using Ethercard Library https://github.com/jcw/ethercard/
*
*/
#include <EtherCard.h>
#include <OneWire.h>
#include <EEPROM.h>
char TargetTemperarureTextbox[10]; // Data in text box
// ethernet interface mac address, must be unique on the LAN
static byte mymac[] = {
0x10,0x4a,0x7d,0x90,0xd3,0xa0 };
static byte myip[] = {
192,168,0,111 }; //used for static IP
byte Ethernet::buffer[1000]; // if you increase the size of the HTML
// code you may need to increase the buffer size
// (or it will stop working) //TODO
BufferFiller bfill;
const byte PinTemp = 4; // Dallas Ds1820 Temperature Sensors
const byte PinSSR1 = 5; // Pin for SSR 1
const byte PinSSR2 = 6; // Pin for SSR 2
byte sensor1[8] = {
0x28, 0x61, 0x24, 0xC5, 0x03, 0x00, 0x00, 0x51};
// User Defined Temperature Sensor Address 1
int currenttemp1 = 0; // curent temperature (1/16th degrees) sensor1
int lasttemp1 = 0; // previous temperature sensor 1
byte negativetemp1 = 0; // if negative temp display that
byte fractlessthan10 = 0; // if less than 10 then add a zero first
int SignBit, Whole, Fract, Tc_100;
byte TargetTemp = 0; // this is the placeholder for the target temperature
byte currenttemp1byte = 0;
OneWire ds(PinTemp);
byte Mode = 0; // 0 is Manual, 1 is Auto
byte SSR1on = 0; // 0 is Off, 1 is On
byte SSR2on = 0; // 0 is Off, 1 is On
void setup () {
if (ether.begin(sizeof Ethernet::buffer, mymac, 10) == 0);
//Add alternative begin with 3rd parameter to specify CS pin to use.
// Only 8, 9 and 10 are usable. Default without 3rd parameter is pin 8.
ether.staticSetup(myip);
pinMode(PinTemp, INPUT); // sets the digital pin as input
pinMode(PinSSR1, OUTPUT); // sets the digital pin as input
pinMode(PinSSR2, OUTPUT); // sets the digital pin as input
TargetTemp = EEPROM.read(0);
Mode = EEPROM.read(1);
// //Stuff for DHCP
// Serial.begin(57600);
// Serial.println("\nDHCP]");
//
// if (ether.begin(sizeof Ethernet::buffer, mymac, 10) == 0)
// Serial.println( "Failed to access Ethernet controller");
//
// Serial.println("Setting up DHCP");
// if (!ether.dhcpSetup())
// Serial.println( "DHCP failed");
//
// ether.printIp("My IP: ", ether.myip);
// ether.printIp("Netmask: ", ether.mymask);
// ether.printIp("GW IP: ", ether.gwip);
// ether.printIp("DNS IP: ", ether.dnsip);
}
int tempread(byte sensoraddr[])
// error codes:
// -1 no sensors found
// -2 invalid CRC
// -3 not a DS1820
{
byte i;
byte present = 0;
byte data[12];
byte addr[8];
//int HighByte, LowByte, TReading, SignBit, Tc_100, Tf_100, Whole, Fract;
int Temp;
if ( !ds.search(addr)) {
ds.reset_search();
return -1;
}
if ( OneWire::crc8( addr, 7) != addr[7]) {
return -2;
}
if ( addr[0] != 0x28) {
return -3;
}
for ( i = 0; i < 8; i++) {
addr[i]=sensoraddr[i];
}
ds.reset(); // pulse the pins and wait for a response to reset the DS1820
ds.select(addr); // 0x55 (MATCH_ROM) followed by the address of the 1820 to talk to.
// ds.write(0x44,1); // start conversion, with parasite power on at the end
ds.write(0x44,0); //PARASITE POWER OFF
//delay(800);
present = ds.reset();
ds.select(addr);
ds.write(0xBE); // Read Scratchpad
for ( i = 0; i < 9; i++) { // we need 9 bytes
data[i] = ds.read();
}
Temp=(data[1]<<8)+data[0]; //take the two bytes response holding temperature
SignBit = Temp & 0x8000; // test most sig bit
if (SignBit) // negative
{
Temp = (Temp ^ 0xffff) + 1; // 2's comp
}
return Temp;
}
const char http_OK[] PROGMEM =
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Pragma: no-cache\r\n\r\n";
const char http_Found[] PROGMEM =
"HTTP/1.0 302 Found\r\n"
"Location: /\r\n\r\n";
const char http_Unauthorized[] PROGMEM =
"HTTP/1.0 401 Unauthorized\r\n"
"Content-Type: text/html\r\n\r\n"
"<h1>401 Unauthorized</h1>";
static word homePage() {
// bfill = ether.tcpOffset();
//$D = word data type
//$L = long data type
//$S = c string
//$F = progmem string
//$E = byte from the eeprom.
//Uptime Stuff
long days=0;
long hours=0;
long mins=0;
long secs=0;
secs = millis()/1000; //convect milliseconds to seconds
mins=secs/60; //convert seconds to minutes
hours=mins/60; //convert minutes to hours
days=hours/24; //convert hours to days
secs=secs-(mins*60); //subtract the coverted seconds to minutes in order to display 59 secs max
mins=mins-(hours*60); //subtract the coverted minutes to hours in order to display 59 minutes max
hours=hours-(days*24); //subtract the coverted hours to days in order to display 23 hours max
char* SSR1stat;
if ( digitalRead(PinSSR1) == HIGH ) {
SSR1stat = "On" ;
}
else {
SSR1stat = "Off";
}
char* SSR2stat;
if ( digitalRead(PinSSR2) == HIGH ) {
SSR2stat = "On" ;
}
else {
SSR2stat = "Off";
}
if (Mode == 0) //If Manual
{
bfill.emit_p(PSTR(
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Pragma: no-cache\r\n"
"\r\n"
"<!DOCTYPE html>"
"<html><head>"
"<meta http-equiv='refresh' content='5'/>"
"<title>Adria Webserver</title>"
"<body bgcolor=""#99CCFF"">"
"<center>"
"<hr />"
"<br />"
"<font size=""5"">"
"Martin`s campingvogn <b>"
"<br />"
"Temperatur i vognen: <b>"
"<br />"
"<br />"
"<font size=""7"">"
"$D.$D °C</font></b>"
"<br />"
"<br />"
"<font size=""5"">"
"Varme er <b>$S</b> "
"<form><input type=""button"" value=""Skift"" "
"onClick=""document.location.href='/?SSR1toggle';""></form>"
"<br />"
"Gulvvarme er <b>$S</b> "
"<form><input type=""button"" value=""Skift"" "
"onClick=""document.location.href='/?SSR2toggle';""></form>"
"<br />"
"<br />"
"<form><input type=""button"" value=""Skift til "
"Auto"" onClick=""document.location.href='/?modeauto';""></form>"
"<hr />"
"Uptime: $L Days $L Hours $L Mins $L Secs"
"</center></body></html>"),
Whole , Fract , SSR1stat, SSR2stat, days, hours, mins, secs );
return bfill.position();
}
else //its AutoMode display Target Temp
// and Textbox for adjusting Temperature
{
bfill.emit_p(PSTR(
"HTTP/1.0 200 OK\r\n"
"Content-Type: text/html\r\n"
"Pragma: no-cache\r\n"
"\r\n"
"<!DOCTYPE html>"
"<html><head>"
"<meta http-equiv='refresh' content='5'/>"
"<title>Adria Webserver</title>"
"<body bgcolor=""#99CCFF"">"
"<center>"
"<hr />"
"<br />"
"<font size=""5"">"
"Martin`s campingvogn <b>"
"<br />"
"Temperatur i vognen: <b>"
"<br />"
"<br />"
"<font size=""7"">"
"$D.$D °C</font></b>"
"<br />"
"<br />"
"<font size=""5"">"
"Auto Temperatur: <b>"
"$D.0 °C</b>"
"<br />"
"<br />"
"Varme er <b>$S</b> "
"<br />"
"<br />"
// "Pump is <b>$S</b> "
// "<br />"
// "<form>"
// "<select id=""setit"" name=""select"">"
// "<option value=""/?modemanual"">Switch to Manual</option>"
// "</select>"
// "<input type=""button"" value=""Ok"" "
// "onclick=""window.open((setit.options[setit.selectedIndex].value)"
// ",'_self')""></form>"
"Skift Auto Temp"
"<form><input type=text name=targettemp size=10>"
"<input type=submit value=Ok> </form>"
"<br />"
"<form><input type=""button"" value=""Skift til Manuel"" "
"onClick=""document.location.href='/?modemanual';""></form>"
"<hr />"
"Uptime: $L Days $L Hours $L Mins $L Secs"
"</center></body></html>"),
//Whole , Fract , TargetTemp, SSR1stat, SSR2stat, days, hours, mins, secs );
Whole , Fract , TargetTemp, SSR1stat, days, hours, mins, secs );
return bfill.position();
}
}
void loop () {
if (Mode == 1) //if auto mode
{
if ((currenttemp1byte<TargetTemp) &&
(currenttemp1byte>0)) // below low range
{
digitalWrite(PinSSR1, HIGH); // turn SSR1oning on
SSR1on = 1;
}
else if ((currenttemp1byte>=TargetTemp) &&
(currenttemp1byte>0)) //ideal range
{
digitalWrite(PinSSR1, LOW); // turn SSR1oning off
SSR1on = 0;
}
}
currenttemp1 = tempread(sensor1);
if (currenttemp1>0)
{
currenttemp1byte = (byte)(currenttemp1>>4);
}
else {
currenttemp1byte = 0;
}
if ((currenttemp1 != lasttemp1) && (currenttemp1>0))
{
Tc_100 = (6 * currenttemp1) + currenttemp1 / 4;
// multiply by (100 * 0.0625) or 6.25
// Tf_100 = ((1.8)*Tc_100) + (32*100); // Farenheit
Whole = Tc_100 / 100; // separate off whole and fractional portions
Fract = Tc_100 % 100;
if (SignBit) // If its negative //TODO
{
negativetemp1 = 1;
}
else
{
negativetemp1 = 0;
}
if (Fract < 10) //TODO
{
fractlessthan10 = 1;
}
else
{
fractlessthan10 = 0;
}
lasttemp1 = currenttemp1;
}
word len = ether.packetReceive();
word pos = ether.packetLoop(len);
if (pos) {
// write to LED digital output
delay(1); // necessary for my system //TODO
bfill = ether.tcpOffset();
char *data = (char *) Ethernet::buffer + pos;
if (strncmp("GET /", data, 5) != 0) {
// Unsupported HTTP request
// 304 or 501 response would be more appropriate
bfill.emit_p(http_Unauthorized);
}
else {
data += 5;
if (data[0] == ' ') {
// Return home page
homePage();
}
else if (strncmp( "?modeauto" , data, 9 ) == 0)
{
Mode = 1;
EEPROM.write(1, Mode);
digitalWrite(PinSSR1, LOW); // turn SSR1 off
SSR1on = 0; // switch SSR off
digitalWrite(PinSSR2, LOW); // turn SSR1 off
bfill.emit_p(http_Found);
}
else if (strncmp( "?modemanual" , data, 11 ) == 0)
{
Mode = 0;
SSR1on = 0; // switch SSR off
EEPROM.write(1, Mode);
digitalWrite(PinSSR1, LOW); // turn SSR1 off
digitalWrite(PinSSR2, LOW); // turn SSR1 off
bfill.emit_p(http_Found);
}
else if (strncmp( "?SSR1toggle" , data, 11 ) == 0)
{
if (SSR1on == 0)
{
SSR1on = 1; // switch SSR off
digitalWrite(PinSSR1, HIGH); // turn SSR1 off
}
else
{
SSR1on = 0; // switch SSR off
digitalWrite(PinSSR1, LOW); // turn SSR1 off
}
bfill.emit_p(http_Found);
}
else if (strncmp( "?SSR2toggle" , data, 11 ) == 0)
{
if (SSR2on == 0)
{
SSR2on = 1; // switch SSR off
digitalWrite(PinSSR2, HIGH); // turn SSR1 off
}
else
{
SSR2on = 0; // switch SSR off
digitalWrite(PinSSR2, LOW); // turn SSR1 off
}
bfill.emit_p(http_Found);
}
else if (strncmp( "?targettemp=" , data , 12 ) == 0)
{
if (ether.findKeyVal(data+1, TargetTemperarureTextbox,
sizeof TargetTemperarureTextbox , "targettemp") > 0)
{
byte value = atoi(TargetTemperarureTextbox);
// command to convert a string to number
if ((value >=0) && (value <=25)) // temp within 0-25 range
{
TargetTemp = value;
EEPROM.write(0, value);
}
}
bfill.emit_p(http_Found);
}
ether.httpServerReply(bfill.position());
}
}
} //loop()
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