Hey all,
I need help with building a sketch to get temperature data (collected with DS1820 temperature 1-wire sensors on the arduino) to an instance of FHEM. (see Home of FHEM)
If s.b. build a similiar project or can help please advise.
Thanks a lot.
Regards,
Alex
Hardware & Software:
•Arduino Ethernet (WizNet W5100 TCP/IP-Ethernet-Controller)
•Temperatur-Sensor Hygrosens Temp.-Sensor DS 1820-BT
•Fhem 5.2 (DEVELOPMENT), $Id: fhem.pl 1996 2012-10-20 07:11:56Z
•FritzBox 7390
Here is what I already got:
#include <SPI.h>
#include <Ethernet.h>
#include "time.h"
#include "OneWire.h"
#include "DallasTemperature.h"
#define ONE_WIRE_BUS 3
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);
DeviceAddress insideThermometer = { };
DeviceAddress outsideThermometer = { };
const byte MaxArrayElement=252;
byte mac[] = { MAC };
byte ip[] = {IP};
const byte bPort = 80;
EthernetServer server(80);
char c,cMstRecentCmnd='/';
char cLineBuffer[MaxArrayElement];
byte bPlaceInBuffer;
void setup()
{
Ethernet.begin(mac, ip);
server.begin();
Serial.begin(9600);
sensors.begin();
sensors.setResolution(insideThermometer, 10);
sensors.setResolution(outsideThermometer, 10);
}
void printTemperature(DeviceAddress deviceAddress)
{
float tempC = sensors.getTempC(deviceAddress);
if (tempC == -127.00) {
Serial.print("Error getting temperature");
} else {
Serial.print("C: ");
Serial.print(tempC);
//Serial.print(" F: ");
//Serial.print(DallasTemperature::toFahrenheit(tempC));
}
}
void loop()
{
delay(2000);
Serial.print("Getting temperatures...\n\r");
sensors.requestTemperatures();
Serial.print("Inside temperature is: ");
printTemperature(insideThermometer);
Serial.print("\n\r");
Serial.print("Outside temperature is: ");
printTemperature(outsideThermometer);
Serial.print("\n\r\n\r");
EthernetClient client = server.available();
if (client) {//2
boolean currentLineIsBlank = true;//3
bPlaceInBuffer=0;
char cCmnd='H';
cMstRecentCmnd='H';
while (client.connected()) {//4
if (client.available()) {//5
c = client.read();//6
if ((c!='\n') && (c!='\r')){
cLineBuffer[bPlaceInBuffer]=c;
if (bPlaceInBuffer<MaxArrayElement) {bPlaceInBuffer++;};
}
client.println();//10
client.println("");
client.println("");
client.print("ArduinoTemperatur-1Wire");
client.println("");
client.println("");
client.println();
client.println("");
client.println("");
client.print("
Temperatur: Messergebnisse");
client.println("
");client.println("");
client.println();
client.println("
");
DeviceAddress insideThermometer = { 0x10, 0x55, 0xF2, 0x56, 0x02, 0x08, 0x00, 0xF3 };
DeviceAddress outsideThermometer = { 0x10, 0xB5, 0xDB, 0x56, 0x02, 0x08, 0x00, 0xD1 };
float tempI = sensors.getTempC(insideThermometer);
float tempA = sensors.getTempC(outsideThermometer);
client.println("");
client.print("
Temperatur, innen C: ");
client.print(tempI);
client.print("
");
client.println("");
client.print("
Temperatur, aussen C: ");
client.print(tempA);
}
client.println("");
client.println("");
break;//15
}
delay(1);
// close the connection:
client.stop();
Serial.println("client disonnected");
}
}
