Now supports DS18B20 and DS18S20 Maxim/Dallas one-wire thermometer devices. Also supports DS18S20 in 9, 10, 11, and 12 bit resolution modes. 'Use Address' mode now checks if the correct device type is present, and informs the user which device to use. Correct temperature conversion times now used in non-parasitic mode. The device should be placed at least 6 inches (15 cm) from the mbed board in order to accurately read ambient temperature.

Dependencies:   mbed

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Show/hide line numbers DS18S20.h Source File

DS18S20.h

00001 /*
00002 * DS18S20. Maxim DS18S20 One-Wire Thermometer. 
00003 * Uses the OneWireCRC library.
00004 *
00005 * Copyright (C) <2010> Petras Saduikis <petras@petras.co.uk>
00006 *
00007 * This file is part of OneWireThermometer.
00008 *
00009 * OneWireThermometer is free software: you can redistribute it and/or modify
00010 * it under the terms of the GNU General Public License as published by
00011 * the Free Software Foundation, either version 3 of the License, or
00012 * (at your option) any later version.
00013 * 
00014 * OneWireThermometer is distributed in the hope that it will be useful,
00015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00017 * GNU General Public License for more details.
00018 *
00019 * You should have received a copy of the GNU General Public License
00020 * along with OneWireThermometer.  If not, see <http://www.gnu.org/licenses/>.
00021 */
00022 
00023 #ifndef SNATCH59_DS18S20_H
00024 #define SNATCH59_DS18S20_H
00025 
00026 #include "OneWireThermometer.h"
00027 
00028 class DS18S20 : public OneWireThermometer
00029 {
00030 public:
00031     DS18S20(bool crcOn, bool useAddr, bool parasitic, PinName pin);
00032     
00033      virtual void setResolution(eResolution resln) {  };    // do nothing
00034     
00035 protected:
00036     virtual float calculateTemperature(BYTE* data);
00037 };
00038 
00039 #endif