I've you have any of the following Dallas ICs then this library is for you.
It's very simple to use, simply create an instance of DallasTemperature and begin on a port of your choice
/*
DallasTemperature.CPP - Dallas Temperature Control Library 1.0.0
Author: Miles Burton, <Removed for privacy>
Copyright (c) 2009 Miles Burton All Rights Reserved
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
This code has been derived from:
http://www.arduino.cc/playground/Learning/OneWire. Unknown author, unknown date
You will need a 4.7K Ohm Resistor to "pull-up" the 1-Wire data line. You may use any combination of resistors 5x1k etc.
If you are using the DS18B20, ground pins 1 and 3. The centre pin is the data line '1-wire'.
Devices supported:
DS18B20
DS18S20
DS1820
You may extend this functionality through strategies. Please post on Arduino.cc and contribute to the project
*/
#include <DallasTemperature.h>
DallasTemperature tempSensor; // You may instantiate as many copies as you require.
void setup(void) {
// initialize inputs/outputs
// start serial port
Serial.begin(9600);
tempSensor.begin(12); // Data wire is plugged into port 12 on the Arduino
Serial.println("Dallas Temperature IC Control Library 1.0. Miles Burton");
}
void loop(void) {
// Ask the library whether the device is valid
switch(tempSensor.isValid())
{
case 1:
Serial.println("Invalid CRC");
tempSensor.reset(); // Attempts to redetect IC
return;
case 2:
Serial.println("Not a valid device");
tempSensor.reset(); // Attempts to redetect IC
return;
}
// getTemperature returns a float. Please note, this will always be a positive number.
Serial.print(tempSensor.getTemperature());
Serial.print("C");
Serial.println();
Serial.print(DallasTemperature::toFahrenheit(tempSensor.getTemperature())); // Use the inbuild Celcius to Fahrenheit conversion. Returns a float
Serial.print("F");
Serial.println();
}
.
| Arduino Forum :: Members :: TeamMCS
Show Posts
. I'm far to old for play ground talk.