+++ /dev/null
-#ifndef DallasTemperature_h\r
-#define DallasTemperature_h\r
-\r
-// This library is free software; you can redistribute it and/or\r
-// modify it under the terms of the GNU Lesser General Public\r
-// License as published by the Free Software Foundation; either\r
-// version 2.1 of the License, or (at your option) any later version.\r
-\r
-// set to true to include code for new and delete operators\r
-#ifndef REQUIRESNEW\r
-#define REQUIRESNEW false\r
-#endif\r
-\r
-// set to true to include code implementing alarm search functions\r
-#ifndef REQUIRESALARMS\r
-#define REQUIRESALARMS true\r
-#endif\r
-\r
-#include <inttypes.h>\r
-#include <OneWire.h>\r
-\r
-// Model IDs\r
-#define DS18S20MODEL 0x10\r
-#define DS18B20MODEL 0x28\r
-#define DS1822MODEL 0x22\r
-\r
-// OneWire commands\r
-#define STARTCONVO 0x44 // Tells device to take a temperature reading and put it on the scratchpad\r
-#define COPYSCRATCH 0x48 // Copy EEPROM\r
-#define READSCRATCH 0xBE // Read EEPROM\r
-#define WRITESCRATCH 0x4E // Write to EEPROM\r
-#define RECALLSCRATCH 0xB8 // Reload from last known\r
-#define READPOWERSUPPLY 0xB4 // Determine if device needs parasite power\r
-#define ALARMSEARCH 0xEC // Query bus for devices with an alarm condition\r
-\r
-// Scratchpad locations\r
-#define TEMP_LSB 0\r
-#define TEMP_MSB 1\r
-#define HIGH_ALARM_TEMP 2\r
-#define LOW_ALARM_TEMP 3\r
-#define CONFIGURATION 4\r
-#define INTERNAL_BYTE 5\r
-#define COUNT_REMAIN 6\r
-#define COUNT_PER_C 7\r
-#define SCRATCHPAD_CRC 8\r
-\r
-// Device resolution\r
-#define TEMP_9_BIT 0x1F // 9 bit\r
-#define TEMP_10_BIT 0x3F // 10 bit\r
-#define TEMP_11_BIT 0x5F // 11 bit\r
-#define TEMP_12_BIT 0x7F // 12 bit\r
-\r
-// Error Codes\r
-#define DEVICE_DISCONNECTED -127\r
-\r
-typedef uint8_t DeviceAddress[8];\r
-\r
-class DallasTemperature\r
-{\r
- public:\r
-\r
- DallasTemperature(OneWire*);\r
-\r
- // initalize bus\r
- void begin(void);\r
-\r
- // returns the number of devices found on the bus\r
- uint8_t getDeviceCount(void);\r
- \r
- // returns true if address is valid\r
- bool validAddress(uint8_t*);\r
-\r
- // finds an address at a given index on the bus \r
- bool getAddress(uint8_t*, const uint8_t);\r
- \r
- // attempt to determine if the device at the given address is connected to the bus\r
- bool isConnected(uint8_t*);\r
-\r
- // attempt to determine if the device at the given address is connected to the bus\r
- // also allows for updating the read scratchpad\r
- bool isConnected(uint8_t*, uint8_t*);\r
-\r
- // read device's scratchpad\r
- void readScratchPad(uint8_t*, uint8_t*);\r
-\r
- // write device's scratchpad\r
- void writeScratchPad(uint8_t*, const uint8_t*);\r
-\r
- // read device's power requirements\r
- bool readPowerSupply(uint8_t*);\r
-\r
- // returns the current resolution, 9-12\r
- uint8_t getResolution(uint8_t*);\r
-\r
- // set resolution of a device to 9, 10, 11, or 12 bits\r
- void setResolution(uint8_t*, uint8_t);\r
-\r
- // sends command for all devices on the bus to perform a temperature conversion\r
- void requestTemperatures(void);\r
- \r
- // sends command for one device to perform a temperature conversion by address\r
- void requestTemperaturesByAddress(uint8_t*);\r
-\r
- // sends command for one device to perform a temperature conversion by index\r
- void requestTemperaturesByIndex(uint8_t);\r
-\r
- // returns temperature in degrees C\r
- float getTempC(uint8_t*);\r
-\r
- // returns temperature in degrees F\r
- float getTempF(uint8_t*);\r
-\r
- // Get temperature for device index (slow)\r
- float getTempCByIndex(uint8_t);\r
- \r
- // Get temperature for device index (slow)\r
- float getTempFByIndex(uint8_t);\r
- \r
- // returns true if the bus requires parasite power\r
- bool isParasitePowerMode(void);\r
-\r
- #if REQUIRESALARMS\r
- \r
- typedef void AlarmHandler(uint8_t*);\r
-\r
- // sets the high alarm temperature for a device\r
- // accepts a char. valid range is -55C - 125C\r
- void setHighAlarmTemp(uint8_t*, const char);\r
-\r
- // sets the low alarm temperature for a device\r
- // accepts a char. valid range is -55C - 125C\r
- void setLowAlarmTemp(uint8_t*, const char);\r
-\r
- // returns a signed char with the current high alarm temperature for a device\r
- // in the range -55C - 125C\r
- char getHighAlarmTemp(uint8_t*);\r
-\r
- // returns a signed char with the current low alarm temperature for a device\r
- // in the range -55C - 125C\r
- char getLowAlarmTemp(uint8_t*);\r
- \r
- // resets internal variables used for the alarm search\r
- void resetAlarmSearch(void);\r
-\r
- // search the wire for devices with active alarms\r
- bool alarmSearch(uint8_t*);\r
-\r
- // returns true if ia specific device has an alarm\r
- bool hasAlarm(uint8_t*);\r
-\r
- // returns true if any device is reporting an alarm on the bus\r
- bool hasAlarm(void);\r
-\r
- // runs the alarm handler for all devices returned by alarmSearch()\r
- void processAlarms(void);\r
- \r
- // sets the alarm handler\r
- void setAlarmHandler(AlarmHandler *);\r
- \r
- // The default alarm handler\r
- static void defaultAlarmHandler(uint8_t*);\r
-\r
- #endif\r
-\r
- // convert from celcius to farenheit\r
- static float toFahrenheit(const float);\r
-\r
- // convert from farenheit to celsius\r
- static float toCelsius(const float);\r
-\r
- #if REQUIRESNEW\r
-\r
- // initalize memory area\r
- void* operator new (unsigned int);\r
-\r
- // delete memory reference\r
- void operator delete(void*);\r
- \r
- #endif\r
-\r
- private:\r
- typedef uint8_t ScratchPad[9];\r
- \r
- // parasite power on or off\r
- bool parasite;\r
-\r
- // used to determine the delay amount needed to allow for the\r
- // temperature conversion to take place\r
- int conversionDelay;\r
-\r
- // count of devices on the bus\r
- uint8_t devices;\r
- \r
- // Take a pointer to one wire instance\r
- OneWire* _wire;\r
-\r
- // reads scratchpad and returns the temperature in degrees C\r
- float calculateTemperature(uint8_t*, uint8_t*);\r
- \r
- #if REQUIRESALARMS\r
-\r
- // required for alarmSearch \r
- uint8_t alarmSearchAddress[8];\r
- char alarmSearchJunction;\r
- uint8_t alarmSearchExhausted;\r
-\r
- // the alarm handler function pointer\r
- AlarmHandler *_AlarmHandler;\r
-\r
- #endif\r
- \r
-};\r
-#endif\r
projects / svn42.git / blobdiff