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wiolink grove driver for ds18b20
/*
* grove_ds18b20.cpp
*
* Copyright (c) 2012 seeed technology inc.
* Website : www.seeed.cc
* Author : Kai
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "grove_ds18b20.h"
#include <OneWire.h>
#include <DallasTemperature.h>
#ifndef ENABLE_DEBUG_ON_UART1
#define ENABLE_DEBUG_ON_UART1 1
#endif
#define ONE_WIRE_BUS 12 // DS18B20 on Digital Port 1 = pin 12 look at http://www.seeedstudio.com/wiki/Wio_Link
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature DS18B20(&oneWire);
GroveDs18b20::GroveDs18b20(int pin)
{
#ifdef ENABLE_DEBUG_ON_UART1
Serial1.println("Hello ds18b20!!!");
byte i;
byte addr[8];
if ( !oneWire.search(addr)) {
Serial1.print("no addresses found\n");
oneWire.reset_search();
return;
}
Serial1.print("R=");
for( i = 0; i < 8; i++) {
Serial1.print(addr[i], HEX);
Serial1.print(" ");
}
if ( OneWire::crc8( addr, 7) != addr[7]) {
Serial1.print("bad CRC!\n");
return;
}
if ( addr[0] == 0x10) {
Serial1.print("device is DS18S20 family\n");
}
else if ( addr[0] == 0x28) {
Serial1.print("device is DS18B20 family\n");
}
else {
Serial1.print("device not recognized : 0x");
Serial1.println(addr[0],HEX);
return;
}
#endif
DS18B20.begin();/* Inizialisieren der Dallas Temperature library */
}
/* read count of devices */
bool GroveDs18b20::read_device_count(uint8_t *count)
{
*count = DS18B20.getDeviceCount();
return true;
}
/* read temperature of first device in Celsius */
bool GroveDs18b20::read_temperature_C(uint8_t index, float *temperature)
{
DS18B20.requestTemperatures(); // Temp abfragen
if (index < 1 || index > DS18B20.getDeviceCount())
{
error_desc = "there is no device with this device number";
return false;
}
*temperature = DS18B20.getTempCByIndex(index - 1);
return true;
}
/* read temperature of first device in Fahrenheit */
bool GroveDs18b20::read_temperature_F(uint8_t index, float *temperature)
{
DS18B20.requestTemperatures(); // Temp abfragen
if (index < 1 || index > DS18B20.getDeviceCount())
{
error_desc = "there is no device with this device number";
return false;
}
*temperature = DS18B20.getTempFByIndex(index - 1);
return true;
}
/*
* grove_ds18b20.h
*
* Copyright (c) 2012 seeed technology inc.
* Website : www.seeed.cc
* Author : Kai
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef __GROVE_DS18B20_H__
#define __GROVE_DS18B20_H__
#include "suli2.h"
//GROVE_NAME "Grove_ds18b20"
//SKU 0497dd7c-2faf-4ccb-900d-9a8f3b099fed
//IF_TYPE GPIO
//IMAGE_URL http://i.imgur.com/McTQZjy.jpg
class GroveDs18b20
{
public:
GroveDs18b20(int pin);
/**
* get the number of devices at the bus
*
* @param device_count - count of devices
*
* @return bool
*/
bool read_device_count(uint8_t *device_count);
/**
* read the temperature of device with number device_index
*
* @param device_index - number of device to read from (1~n)
* @param celsius_degree - unit: Celsius degree
*
* @return bool
*/
bool read_temperature_C(uint8_t device_index, float *celsius_degree);
/**
* read the temperature of device with number device_index
*
* @param device_count - number of device to read from (1~n)
* @param fahrenheit_degree - unit: Fahrenheit degree
*
* @return bool
*/
bool read_temperature_F(uint8_t device_index, float *fahrenheit_degree);
char *get_last_error() { return error_desc; };
private:
char *error_desc;
};
#endif
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